208 results on '"Loizzo, Mr"'
Search Results
2. Radical scavenging and hypoglycaemic potential effects of edible flowers extract from Borago officinalis L. (Boraginaceae)
- Author
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Loizzo, Mr, Bonesi, M, Malfa, Giuseppe, Acquaviva, Rosaria, Ragusa, S, Menichini, F, and Tundis, R.
- Published
- 2015
3. Antimicrobial and antioxidant properties of Betula aetnensis Rafin. (Betulaceae) leaves extract
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Rosaria Acquaviva, Menichini, F., Ragusa, S., Carlo GENOVESE, Amodeo, A., Tundis, R., Loizzo, Mr, and Iauk, L.
- Subjects
antimicrobiol effects ,Betula aetnensis ,antioxidant activity ,Haemophilus influenzae ,Streptococcus pyogenes Ery-S and Ery-R1 - Published
- 2013
4. Selective antiproliferative activity of spinasterol from Physospemum verticillatum against A549 and COR-L23 cancer cells
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Tundis, R, primary, Deguin, B, additional, Loizzo, MR, additional, Bonesi, M, additional, Michel, S, additional, and Menichini, F, additional
- Published
- 2012
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5. Chemical composition and in vitro anticholinesterase inhibitory activity of Citrus medica L. cv. Diamante essential oil
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Menichini, F, primary, Tundis, R, additional, Loizzo, MR, additional, Bonesi, M, additional, Conforti, F, additional, Statti, GA, additional, Intrigliolo, F, additional, De Cindio, B, additional, Conti, A, additional, and Menichini, F, additional
- Published
- 2009
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6. Isolation and cytotoxic activity of buchariol from Salvia leriifolia Benth.
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Loizzo, MR, primary, Tundis, R, additional, Menichini, F, additional, Bonesi, M, additional, Conforti, F, additional, Statti, GA, additional, Nadjafi, F, additional, and Nicoletti, M, additional
- Published
- 2009
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7. The in vitro screening for hypoglycemic and antihypertensive activities of Dipsacus fullonum L
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Tillequin, F, primary, Tundis, R, additional, Deguin, B, additional, Loizzo, MR, additional, Bonesi, M, additional, Menichini, F, additional, Conforti, F, additional, Marrelli, M, additional, and Statti, G, additional
- Published
- 2008
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8. Comparative chemical composition, antioxidant activity and acetylcholinesterase inhibition of Citrus medica L. cv. Diamante and Citrus bergamia Risso
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Menichini, F, primary, Loizzo, MR, additional, Tundis, R, additional, Bonesi, M, additional, Conforti, F, additional, Marrelli, M, additional, Statti, GA, additional, and Menichini, F, additional
- Published
- 2007
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9. Antioxidant activity of Capparis ovata Desf. and Cynara cardunculus L. ssp. cardunculus
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Marrelli, M, primary, Conforti, F, additional, Tundis, R, additional, Loizzo, MR, additional, Bonesi, M, additional, Menichini, F, additional, Vaccaro, A, additional, Statti, G, additional, and Curini, M, additional
- Published
- 2007
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10. Cytotoxic extracts of Salsola oppositifolia Desf. (Amaranthaceae) against non-small lung carcinoma (CORL-23) and melanoma (C32) cells
- Author
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Tundis, R, primary, Loizzo, MR, additional, Bonesi, M, additional, Conforti, F, additional, Menichini, F, additional, Marrelli, M, additional, and Statti, G, additional
- Published
- 2007
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11. Synthesis and Angiotensin Converting Enzyme (ACE) inhibition activity of chalcone derivatives
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Bonesi, M, primary, Loizzo, MR, additional, Tundis, R, additional, Conforti, F, additional, Menichini, F, additional, Marrelli, M, additional, Statti, GA, additional, and Michel, S, additional
- Published
- 2007
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12. Comparative chemical composition and antiproliferative activity of aerial parts of Salvia leriifolia Benth. and Salvia acetabulosa L. essential oils against human tumor cell in vitro models.
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Loizzo MR, Menichini F, Tundis R, Bonesi M, Nadjafi F, Saab AM, and Frega NG
- Abstract
Abstract The aim of this work was to examine the chemical composition and antiproliferative activity of Salvia leriifolia Benth. and Salvia acetabulosa L. oils. S. leriifolia oil was characterized by 50 components, whereas 19 components were identified in S. acetabulosa. S. leriifolia oil was characterized by camphor (10.5%), 1,8-cineole (8.6%), camphene (6.2%), and alpha-pinene (4.7%). alpha-Pinene (52.3%), 1,8-cineole (27.7%), and camphor (6.7%) were the major components in S. acetabulosa oil. Both oils exerted a strong antiproliferative activity comparing with vinblastine against COR-L23 with 50% inhibitory concentration (IC(50)) values of 7.5 and 6.5 mug/mL for S. leriifolia and S. acetabulosa, respectively. Salvia oils showed an interesting activity also on C32 (IC(50) = 6.3 and 9.1 mug/mL for S. acetabulosa and S. leriifolia, respectively). S. acetabulosa was also found to possess cytotoxic activity against renal adenocarcinoma (IC(50) = 6.8 mug/mL). The results clearly showed that for both Salvia species the antiproliferative activity could not be related to the major abundant compounds. Consequently, the minor components may be involved in some type of synergism with the other active compounds. [ABSTRACT FROM AUTHOR]
- Published
- 2010
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13. Influence of ripening stage on health benefits properties of Capsicum annuum var. acuminatum L.: in vitro studies.
- Author
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Loizzo MR, Tundis R, Menichini F, and Statti GA
- Abstract
ABSTRACT In the present study the in vitro hypoglycemic and anti-acetylcholinesterase activities of hot pepper fruits (Capsicum annuum var. acuminatum L.) at different ripening stages were investigated. The mature, green-stage fruits had the highest activity against alpha-amylase and alpha-glucosidase with 50% inhibitory concentration (IC(50)) values of 55.88 and 76.11 microg/mL, respectively, while C. annuum var. acuminatum in the prematurity green stage exhibited the highest acetylcholinesterase inhibition property (IC(50) = 84.30 microg/mL), using the Ellman method. This study highlights the biochemical rationale for chemopreventive significance in health benefits when consuming this variety of pepper. [ABSTRACT FROM AUTHOR]
- Published
- 2008
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14. Composition and alpha-amylase inhibitory effect of essential oils from Cedrus libani.
- Author
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Loizzo MR, Saab AM, Statti GA, and Menichini F
- Abstract
The inhibitory activity of alpha-amylase and the phytochemical composition of Cedrus libani essential oils obtained from wood, leaves and cones were investigated. The C. libani woods oil exhibit an IC(50) value of 0.14 mg/ml, whereas the leaves and cones oils were devoid of any significant activity. [ABSTRACT FROM AUTHOR]
- Published
- 2007
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15. Inhibition of angiotensin converting enzyme (ACE) by flavonoids isolated from Ailanthus excelsa (Roxb) (Simaroubaceae)
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Loizzo MR, Said A, Tundis R, Rashed K, Statti GA, Hufner A, and Menichini F
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In our screening program for antihypertensive properties of plants, the leaves of Ailanthus excelsa (Roxb), a plant used in Egyptian traditional medicine, were analysed. Chromatographic separation of A. excelsa MeOH extract yielded six flavonoids for the first time from this species, namely apigenin, luteolin, kaempferol-3-O-alpha-arabinopyranoside, kaempferol-3-O-beta-galactopyranoside, quercetin-3-O-alpha-arabinopyranoside and luteolin-7-O-beta-glucopyranoside. The in vitro hypotensive activities of the MeOH extract and the isolated compounds were elucidated. All the flavonoids tested exhibited ACE inhibitory activity, in particular the most active compound was kaempferol-3-O-beta-galactopyranoside with an IC(50) value of 260 microm. [ABSTRACT FROM AUTHOR]
- Published
- 2007
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16. Acetylcholinesterase and butyrylcholinesterase inhibition of ethanolic extract and monoterpenes from Pimpinella anisoides V Brig. (Apiaceae)
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Menichini F, Tundis R, Loizzo MR, Bonesi M, Marrelli M, Statti GA, and Conforti F
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Ethanolic extract from the fruits of Pimpinella anisoides, an aromatic plant and a spice, exhibited activity against AChE and BChE, with IC(50) values of 227.5 and 362.1 microg/ml, respectively. The most abundant constituents of the extract were trans-anethole, (+)-limonene and (+)-sabinene. trans-Anethole exhibited the highest activity against AChE and BChE with IC(50) values of 134.7 and 209.6 microg/ml, respectively. The bicyclic monoterpene (+)-sabinene exhibited a promising activity against AChE (IC(50) of 176.5 microg/ml) and BChE (IC(50) of 218.6 microg/ml). [ABSTRACT FROM AUTHOR]
- Published
- 2009
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17. Flavonoids and Dementia: An Update
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Ilkay Erdogan Orhan, Maria Daglia, Seyed Fazel Nabavi, Eduardo Sobarzo-Sánchez, Monica Rosa Loizzo, S M Nabavi, Orhan, Ie., Daglia, M., Nabavi, Sf., Loizzo, Mr., Sobarzo-Sánchez, E., and Nabavi, Sm.
- Subjects
Gerontology ,medicine.medical_specialty ,Anti-Inflammatory Agents ,Biochemistry ,Antioxidants ,Anti-inflammatory activity ,Insulin resistance ,Antioxidant activity ,Drug Discovery ,medicine ,Animals ,Humans ,Dementia ,Cognitive Dysfunction ,Cognitive decline ,Pathological ,Depression (differential diagnoses) ,Flavonoids ,Pharmacology ,business.industry ,Neurodegenerative diseases ,Organic Chemistry ,Cognition ,medicine.disease ,Obesity ,Neuroprotective Agents ,Blood pressure ,Flavonoid ,Physical therapy ,Molecular Medicine ,business - Abstract
© 2015 Bentham Science Publishers.Dementia is a strongly age-related syndrome due to cognitive decline that can be considered a typical example of the combination of physiological and pathological aging-associated changes occurring in old people; it ranges from intact cognition to mild cognitive impairment, which is an intermediate stage of cognitive deterioration, and dementia. The spread of this syndrome has induced to study and try to reduce dementia modifiable risk factors. They include insulin resistance and hyperinsulinaemia, high blood pressure, obesity, smoking, depression, cognitive inactivity or low educational attainment as well as physical inactivity and incorrect diet, which can be considered one of the most important factors. One emerging strategy to decrease the prevalence of mild cognitive impairment and dementia may be the use of nutritional interventions. In the last decade, prospective data have suggested that high fruit and vegetable intakes are related to improved cognitive functions and reduced risks of developing a neurodegenerative process. The protective effects against neurodegeneration could be in part due to the intake of flavonoids that have been associated with several health benefits such as antioxidant and anti-inflammatory activities, increased neuronal signaling, and improved metabolic functions. The present article is aimed at reviewing scientific studies that show the protective effects of flavonoid intake against mild cognitive impairment and dementia.
- Published
- 2015
18. Metabolite profile and in vitro activities of Phagnalon saxatile (L.) Cass. relevant to treatment of Alzheimer’s disease
- Author
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Maurizio Bruno, Filomena Conforti, Felice Senatore, Monica Rosa Loizzo, Francesco Menichini, Daniela Rigano, Carmen Formisano, Conforti, F, Rigano, D, Formisano, C, Bruno, M, Loizzo, MR, Menichini, F, and Senatore, F
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Antioxidant ,DPPH ,medicine.medical_treatment ,Metabolite ,Asteraceae ,Pharmacology ,Nitric Oxide ,Inhibition of NO production ,Cell Line ,Mice ,chemistry.chemical_compound ,Phagnalon saxatile ,Alzheimer Disease ,Drug Discovery ,medicine ,Caffeic acid ,Animals ,Humans ,Settore BIO/15 - Biologia Farmaceutica ,IC50 ,Butyrylcholinesterase ,Plant Extracts ,inhibition of NO production, Alzheimer's disease ,Settore CHIM/06 - Chimica Organica ,General Medicine ,Acetylcholinesterase ,Phenolic compounds ,Alzheimers disease ,chemistry ,Biochemistry ,Phagnalon saxatile, asteraceae, phenolic compound ,Cholinesterase Inhibitors ,Luteolin - Abstract
The present study describes for the first time the in vitro properties (inhibition of NO production and anticholinesterase) of Phagnalon saxatile (L.) Cass. (Asteraceae). The methanolic extract showed antioxidant activity that was measured by DPPH assay and beta-carotene bleaching test. The same extract inhibited NO production in the murine monocytic macrophage cell line RAW 264.7. Acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) inhibition was assessed by modifications of Ellman's method. Purification of the MeOH extract of P. saxatile allowed the isolation of phenolic compounds. Among them, the compounds that most effectively inhibited lipopolysaccharide-induced NO production were caffeic acid and methylchlorogenic acid, with IC50 values of 7 microg/mL and 12 microg/mL, respectively. Luteolin and 3,5-dicaffeoylquinic acid exhibited the most promising activity against AChE with an IC50 of 25.2 and 54.5 microg/mL, respectively, while caffeic acid and luteolin exhibited higher activity against BChE with an IC50 of 32.2 and 37.2 microg/mL, respectively.
- Published
- 2009
19. Carob pulp flour as an innovative source of bioactive molecules for the preparation of high-value-added jellies.
- Author
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Spizzirri UG, Esposito L, Caputo P, Martuscelli M, Gaglianò M, Clodoveo ML, De Luca G, Rossi CO, Savastano M, Scarcelli E, Loizzo MR, Restuccia D, and Aiello F
- Abstract
The rising demand for healthier alternatives to traditional sugary products has driven the exploration of natural substitutes for sucrose. This study aimed to investigate carob pulp flour (CPF) as a viable alternative to sucrose in the production of high-value jellies with enhanced health benefits. Carob pulp flour was spectroscopically characterized, revealing the presence of bioactive molecules, such as natural antidiabetic polyols and polyphenols. Colorimetric tests demonstrated a significant concentration of polyphenolic molecules in CPF, with a remarkable scavenging activity against radical species in both organic and aqueous environments. Jellies based on CPF (CGC) were successfully prepared and exhibited strong antioxidant activity against ABTS (IC
50 0.158 mg mL-1 ) and DPPH (IC50 0.175 mg mL-1 ) radicals, maintaining their properties over 15 days, unlike the sucrose-based control, which showed no antioxidant activity. The CPF-enhanced jellies consistently demonstrated higher G' values (in the range 20-35 °C) than the sucrose-based jellies, indicating improved consistency, elasticity, and strong gel properties, even at higher temperatures. Sensory analysis revealed significant differences, with CPF-based jellies displaying enhanced chocolate (2.3 ± 1.0), ripe fruit (2.3 ± 1.8), and caramel odors (2.0 ± 0.9), as well as increased bitterness and astringency, reduced sweetness, and improved texture. Additionally, CPF-based jellies exhibited significant hypoglycemic properties, with dose-dependent inhibitory effects on α-amylase (57.7 %) and α-glucosidase (50.3 %), and a moderate lipase inhibitory effect (48.6 %) at the maximum concentrations tested. The findings of this study highlight the potential of CPF as a functional ingredient in the food industry, offering a healthier alternative to sucrose in jelly production. The inclusion of CPF not only enhances the antioxidant and sensory properties of jellies but also contributes to significant hypoglycemic effects, making it a promising candidate for the development of functional foods with added health benefits., Competing Interests: The authors declare the following financial interests/personal relationships which may be considered as potential competing interests:Donatella Restuccia reports a relationship with Cell Press that includes: board membership. Associate Editor-Food Nutrition Section (Heliyon) If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2024 The Authors. Published by Elsevier Ltd.)- Published
- 2024
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20. Evaluation of the Shelf Life of Myristica - fragrans Powder-Flavored Oils Obtained through the Application of Two Processes: Infusion and Co-Pressing Technology.
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Custureri IMG, Loizzo MR, Sicari V, Pino R, Tundis R, Soria AC, and Giuffrè AM
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- Antioxidants chemistry, Antioxidants pharmacology, Powders chemistry, Phenols chemistry, Olive Oil chemistry, Flavoring Agents chemistry, Food Storage methods, Carotenoids chemistry, Myristica chemistry
- Abstract
This work aimed to evaluate the impact of enrichment processing on the quality parameters, bioactivity and sensorial aspects of Myristica fragrans (mace)-flavored olive oil storage for one year. The mace powder was added to extra virgin olive oil through two different processes: immediately after crushing the olives by mixing mace (1% weight/weight ( w / w )) with the olive paste (MAVOO-M) and by adding mace to extra virgin olive oil (C) (2% w / w ) (MAVOO-I). A multi-analytical approach was applied to measure the main qualitative indexes, such as the free acidity, peroxide value and ultraviolet parameters. The total phenolic and carotenoid contents (TPC and TCC, respectively) and α-tocopherol were also evaluated, as well as the sensory attributes. The radical scavenging potential was estimated by using two different in vitro tests, namely, 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH). A significant increase in the free acidity parameter was found in all the flavored oils, and particularly in the MAVOO-M (1.27% oleic acid); at the same time, this oil was the sample with the lowest peroxide value (i.e., 9.68 meqO
2 /kg) after 360 days of storage. At the end of the storage, an increase in L* values was found in both the MAVOO-M and -I vs. the C (43.88 and 43.02, respectively, vs. 42.62). The TCC was strongly influenced by the addition of mace, especially when the infusion process was used. In fact, after one year of storage, the TCC in the MAVOO-I resulted in ~34.7% more than the MAVOO-M. A promising DPPH radical scavenging activity was observed independently by the applied aromatization process, with IC50 values of 19.77 and 17.80 μg/mL for the MAVOO-M and MAVOO-I, respectively. However, this activity decreased during storage, and a similar trend was observed using the ABTS test. In conclusion the infusion as enrichment methodology led to more promising results in terms of functionality compared with the co-mixing one.- Published
- 2024
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21. Chemical Profile and Healthy Properties of Sicilian Diplotaxis harra subsp. crassifolia (Raf.) Maire.
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Badalamenti N, Napolitano A, Bruno M, Pino R, Tundis R, Ilardi V, Loizzo MR, and Piacente S
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- Sicily, Flavonoids chemistry, Flavonoids pharmacology, Flavonoids analysis, Plant Extracts chemistry, Plant Extracts pharmacology, Antioxidants chemistry, Antioxidants pharmacology, Phytochemicals chemistry, Phytochemicals pharmacology
- Abstract
This study was aimed at investigating the phytochemical profile and bioactivity of Diplotaxis harra subsp. crassifolia (Brassicaceae), a species from central-southern Sicily (Italy), where it is consumed as a salad. For this purpose, LC-ESI/HRMS
n analysis of the ethanolic extract was performed, highlighting the occurrence, along with flavonoids, hydroxycinnamic acid derivatives, and oxylipins, of sulfated secondary metabolites, including glucosinolates and various sulfooxy derivatives (e.g., C13 nor-isoprenoids, hydroxyphenyl, and hydroxybenzoic acid derivatives), most of which were never reported before in the Brassicaeae family or in the Diplotaxis genus. Following ethnomedicinal information regarding this species used for the treatment of various pathologies such as diabetes and hypercholesterolemia, D. harra ethanolic extract was evaluated for its antioxidant potential using different in vitro tests such as 2,2-diphenyl-1-picrylhydrazyl, 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid), Ferric Reducing Ability Power, and β -carotene bleaching tests. The inhibitory activity of carbohydrate-hydrolyzing enzymes (α-amylase and α-glucosidase) and pancreatic lipase was also assessed. In the 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid assay, an IC50 value comparable to the positive control ascorbic acid (2.87 vs. 1.70 μg/mL, respectively) was obtained. The wild-wall rocket salad extract showed a significant α-amylase inhibitory effect. Obtained results indicate that Sicilian wild-wall rocket contains phytochemicals that can prevent hyperglycemia, hyperlipidemia, and obesity.- Published
- 2024
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22. Chemical Profile and Bioactivity of Rubus idaeus L. Fruits Grown in Conventional and Aeroponic Systems.
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La Torre C, Loizzo MR, Frattaruolo L, Plastina P, Grisolia A, Armentano B, Cappello MS, Cappello AR, and Tundis R
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Raspberry ( Rubus idaeus L.) is a fruit of great interest due to its aroma, nutritional properties, and the presence of many bioactive compounds. However, differences among cultivation systems can affect its composition and, consequently, its potential bioactivity. Herein, for the first time, raspberries grown in an aeroponic system were investigated for their chemical profile and antioxidant and anti-inflammatory activity, as well as their enzyme (α-glucosidase and pancreatic lipase) inhibitory properties in comparison to wild and conventionally cultivated fruits. High-performance liquid chromatography coupled with diode array detection (HPLC-DAD) analyses revealed the presence of gallic acid, caffeic acid, chlorogenic acid, p -coumaric acid, ferulic acid, rutin, and catechin in all the samples. The extracts exhibited in vitro anti-inflammatory activity (inhibition of nitric oxide production) regardless of the cultivation method. Of particular interest is the ability of raspberries to inhibit pancreatic lipase. With the exception of the β-carotene bleaching test, the raspberries grown in conventional and aeroponic systems were more active in terms of antioxidants than wild fruits, as evidenced by the ABTS (IC
50 in the range 1.6-3.4 μg/mL), DPPH (IC50 in the range 8.9-28.3 μg/mL), and FRAP tests (24.6-44.9 μM Fe(II)/g). The raspberries from aeroponic cultivation were generally able to exert the same bioactivity as those obtained from both conventionally cultivated and wild fruits, supporting the consideration that in the future, this technology could reshape agriculture by mitigating resource constraints, fostering sustainable practices and increasing yields., Competing Interests: Author Antonio Grisolia was employed by the company Azienda Agricola Grisolia A. Author Biagio Armentano was employed by the company Azienda Agricola Armentano F. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.- Published
- 2024
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23. Editorial: Nutrition and sustainable development goal 12: responsible consumption.
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Sadiq MB, Secondi L, Velickova E, Rocha JM, Rossi L, Schmidt Rivera X, Difonzo G, Loizzo MR, and Ozögul F
- Abstract
Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. The author(s) declared that they were an editorial board member of Frontiers, at the time of submission. This had no impact on the peer review process and the final decision.
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- 2024
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24. Evaluation of the Shelf life of Ready-to-Eat Fresh Bamboo Sprouts ( Phyllostachys edulis ) Packaged in a Modified Atmosphere or Vacuum: A Comparative Study.
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Sicari V, Tundis R, Romeo R, Reitano A, Belsito EL, Leggio A, and Loizzo MR
- Abstract
During the last decades, the consumption of bamboo sprouts ( Phyllostacys edulis ) has increased because they are considered a "superfood". However, this product is characterized by a short shelf life due to the deterioration in quality parameters. The aim of this study was to investigate the application of two modified atmosphere packaging (MAP) systems (MAP1: 2% O
2 , 5% CO2 , 93% N2 and MAP2: 3% O2 , 7% CO2 , 90% N2 ) to fresh-shelled ready-to-eat bamboo sprouts and compare these packaging systems with vacuum packaging during storage for 28 days at 4 °C using heat-sealable polyamide and polyethylene (PA/PE) trays. Several chemical-physical parameters (moisture content, water activity, pH, headspace composition, and firmness) were monitored, as well as CIELab colorimetric parameters and microbial growth. The quantification of selected organic acids was performed via UHPLC. Mathematical kinetic models were applied to study the evolution of total phenol (TPC), flavonoid (TFC), and carotenoid content (TCC) during storage. The evolution of antioxidant potential investigated by ABTS, DPPH, and β-carotene bleaching tests was also assessed. Results showed that at the end of the storage period, significant variations in the colorimetric parameters are detectable between the sprouts apical portion and the basal one, regardless of both applied MAPs. A linear reduction in both DPPH and ABTS radical scavenging activity was evidenced during storage, regardless of the type of packaging applied. In DPPH test samples packaged in MAP after 28 days of storage, they retain good antioxidant activity, whereas in vacuum, this activity is reduced by 50% compared to the initial value (IC50 values from 24.77 to 32.74 μg/mL and from 24.77 to 71.12 μg/mL for MAP2 and vacuum, respectively).- Published
- 2024
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25. Lavandula angustifolia mill. (Lamiaceae) ethanol extract and its main constituents as promising agents for the treatment of metabolic disorders: chemical profile, in vitro biological studies, and molecular docking.
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Tundis R, Grande F, Occhiuzzi MA, Sicari V, Loizzo MR, and Cappello AR
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- Molecular Docking Simulation, alpha-Glucosidases metabolism, Ethanol, Plant Extracts pharmacology, Plant Extracts chemistry, Antioxidants pharmacology, alpha-Amylases, Lipase, Obesity, Diabetes Mellitus, Type 2 drug therapy, Lavandula chemistry, Lavandula metabolism, Lamiaceae metabolism
- Abstract
Lavandula angustifolia Mill. (lavender) is one of the most used medicinal plants. Herein, we chemically characterised and investigated the antioxidant properties and the capability to inhibit key enzymes for the treatment of type 2 diabetes (TD2) and obesity such as pancreatic lipase, α-glucosidase, and α-amylase of the ethanolic extract of two lavender samples (La1 and La2) from southern Italy. Both extracts significantly inhibited α-glucosidase, while La1 inhibited α-amylase and lipase more effectively than La2. To investigate whether these properties could be due to a direct interaction of the main constituents of the extracts with the targeted enzymes, molecular docking studies have been performed. As a result, the selected compounds were able to interact with the key residues of the binding site of the three proteins, thus supporting biological data. Current findings indicate the new potential of lavender ethanolic extract for the development of novel agents for T2D and obesity.
- Published
- 2023
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26. Evaluation of Quality Parameters and Functional Activity of Ottobratica Extra Virgin Olive Oil Enriched with Zingiber officinale (Ginger) by Two Different Enrichment Processes during One-Year Storage.
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Custureri IMG, Sicari V, Loizzo MR, Tundis R, Soria AC, and Giuffrè AM
- Abstract
The aim of this work was to evaluate the impact of two enrichment processes on the quality parameters and bioactivity of Ottobratica extra virgin olive oil (EVOO) with ginger during storage. The first procedure was conducted by including ginger powder with olive fruits in the malaxer, and the second by infusion into the EVOO. The obtained oils were stored at room temperature for one year in the dark and periodically analysed. To evaluate the effect on the shelf-life of flavoured olive oils (FVOOs), physical, chemical and sensory parameters were evaluated. The FVOOs were investigated for antioxidant activity through a multi-target approach. The inhibition of lipase and carbohydrate hydrolysing enzymes was analysed. The addition of ginger in the malaxer generated a product that preserved the lowest values of peroxide after storage (10.57 mEq O
2 kg-1 ) and maintained the highest α-tocopherol level (101.16 mg kg-1 ). The FVOOs, regardless of the enrichment technique used, showed a higher antioxidant activity than EVOO. Generally, a reduction in the inhibitory activity of the carbohydrate inhibitory enzymes was observed, especially after 60 days of storage. The addition of ginger improved the lipase inhibitory effect, especially if added during malaxation, and helped the FVOOs maintain this activity during storage.- Published
- 2023
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27. Iridoid- and flavonoid-enriched fractions of Cornus sanguinea and Cornus mas exert antioxidant and anti-inflammatory effects and inhibit key enzymes in the treatment of metabolic disorders.
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Tenuta MC, Loizzo MR, Tundis R, Dugay A, Bouzidi C, Marie A, Acquaviva R, Cappello AR, and Deguin B
- Subjects
- Flavonoids chemistry, Antioxidants chemistry, Kaempferols, Quercetin analysis, alpha-Glucosidases analysis, Iridoids pharmacology, Plant Extracts chemistry, Spectrometry, Mass, Electrospray Ionization, Lipase, Galactosides, Anti-Inflammatory Agents pharmacology, Anti-Inflammatory Agents analysis, Fruit chemistry, Cornus chemistry, Metabolic Diseases
- Abstract
Background : Berry fruits are recognized as a "superfood" due to their high content of bioactive compounds and health benefits. Scope and approach : Herein, extracts of Cornus sanguinea and Cornus mas fresh and dried fruits obtained by different extraction procedures (ethanolic and hydroalcoholic maceration, ultrasound-assisted extraction, and Soxhlet apparatus) were analysed using liquid chromatography-electrospray ionization-quadrupole-time of flight-mass spectrometry (LC-ESI-QTOF-MS) and compared to identify the main healthy compounds and their impact on the inhibition of key enzymes (pancreatic lipase, α-glucosidase, and α-amylase) associated with metabolic disorders. The antioxidant activity and inhibition of nitric oxide (NO) and NF-κB pathway were also investigated. Key findings and conclusions : Flavonoids, iridoids, and phenolic acids were the main classes of identified compounds. Herein, kaempferol 3- O -galactoside, kaempferol 3- O -glucoside, quercetin, quercetin 3- O -xyloside, and myricetin 3- O -galactoside were detected for the first time in C. sanguinea . Remarkable antioxidant effects and promising α-glucosidase and lipase inhibitory activity were observed with extracts obtained by hydroalcoholic maceration of both Cornus dried fruits. Consequently, these extracts were subjected to fractionation using Amberlite XAD-16 resin. The most promising biological activities, which are attributed to the presence of some flavonoids and iridoids, were detected with the C. sanguinea fractions, in particular SD2(II). The results of this study offer new insights into the potential development of functional foods, nutraceuticals, and food supplements using the Cornus species.
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- 2023
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28. Anti-Inflammatory and Antioxidant Effects of Leaves and Sheath from Bamboo ( Phyllostacys edulis J. Houz).
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Tundis R, Augimeri G, Vivacqua A, Romeo R, Sicari V, Bonofiglio D, and Loizzo MR
- Abstract
Bamboo ( Phyllostacys edulis J. Houz) has become an emerging forest resource of economic and ecological significance with health benefits. Since the beneficial effects of the non-edible parts of bamboo have not been thoroughly explored, we characterized in this study bamboo leaf (BL) and sheath (BS) extracts. The total phenol and flavonoid content (TPC and TFC), antioxidant activity (ABTS, DPPH, FRAP and β-carotene bleaching test) and anti-inflammatory properties were determined. Leaves exhibited a TPC value of 73.92 mg equivalent (eq) gallic acid/g fresh weight (FW) and a TFC value of 56.75 mg eq quercetin/g FW. Ultra-High-Performance Liquid Chromatography (UHPLC) coupled with photo diode array detector (PDA) analysis revealed evidence for the presence of protocatechuic acid, isoorientin, orientin and isovitexin in BL, whereas BS was rich in phenolic acids. Both samples demonstrated a significant ability to scavenge radicals against ABTS
·+ , with an inhibitory concentration of 50% of 3.07 μg/mL for BL and 6.78 μg/mL for BS. At a concentration of 0.1 and 0.2 mg/mL, BS decreased reactive oxygen species production without hampering cell viability in HepG2 liver cells, while at the same concentrations, BL exhibited cytotoxicity in HepG2 cells. In addition, 0.1 and 0.2 mg/mL BS and BL reduced Interleukin-6 and Monocyte Chemoattractant Protein-1 production in human lipopolysaccharide-stimulated THP-1 macrophages, without affecting cell viability. These findings highlight the anti-inflammatory and antioxidant properties of BL and BS, corroborating their different potential applications in the nutraceutical, cosmetic and pharmaceutical industries.- Published
- 2023
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29. Anti-Cancer Agent: The Labdane Diterpenoid-Andrographolide.
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Tundis R, Patra JK, Bonesi M, Das S, Nath R, Das Talukdar A, Das G, and Loizzo MR
- Abstract
In spite of the progress in treatment strategies, cancer remains a major cause of death worldwide. Therefore, the main challenge should be the early diagnosis of cancer and the design of an optimal therapeutic strategy to increase the patient's life expectancy as well as the continuation of the search for increasingly active and selective molecules for the treatment of different forms of cancer. In the recent decades, research in the field of natural compounds has increasingly shifted towards advanced and molecular level understandings, thus leading to the development of potent anti-cancer agents. Among them is the diterpene lactone andrographolide, isolated from Andrographis paniculata (Burm.f.) Wall. ex Nees that showed shows a plethora of biological activities, including not only anti-cancer activity, but also anti-inflammatory, anti-viral, anti-bacterial, neuroprotective, hepatoprotective, hypoglycemic, and immunomodulatory properties. Andrographolide has been shown to act as an anti-tumor drug by affecting specific molecular targets that play a part in the development and progression of several cancer types including breast, lung, colon, renal, and cervical cancer, as well as leukemia and hepatocarcinoma. This review comprehensively and systematically summarized the current research on the potential anti-cancer properties of andrographolide highlighting its mechanisms of action, pharmacokinetics, and potential side effects and discussing the future perspectives, challenges, and limitations of use.
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- 2023
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30. Antibacterial activity and chemical characterization of almond ( Prunus dulcis L.) peel extract.
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Badalamenti N, Bruno M, Loizzo MR, Puccio V, Gaglio R, Francesca N, Settanni L, and Sottile F
- Subjects
- Anti-Bacterial Agents pharmacology, Microbial Sensitivity Tests, Staphylococcus aureus, Prunus dulcis chemistry
- Abstract
In this study, almond skin of Prunus dulcis L. variety Casteltermini was characterised for its chemical composition and for the inhibitory activity towards food associated microorganisms belonging to pathogenic ( Salmonella Enteritidis, Staphylococcus aureus , Escherichia coli and Listeria monocytgenes ), spoilage ( Pseudomonas poae and Brochotrix thermospacta ) and useful ( Levilactobacillus brevis and Saccharomyces cerevisiae ) groups. The n -hexane extract of P. dulcis skin, investigated by GC-MS, evidenced linoleic, palmitic, and oleic acids as the main abundant compounds. Staphylococcus aureus ATCC 33862 growth was strongly limited by n -hexane extract and the minimum inhibition concentration (MIC) was 25.5 mg/mL. These results highlight the potential of almond by-products as food bio-preservatives as well as pharmaceutical products.
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- 2023
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31. A New Bloody Pulp Selection of Myrobalan ( Prunus cerasifera L.): Pomological Traits, Chemical Composition, and Nutraceutical Properties.
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Sottile F, Napolitano A, Badalamenti N, Bruno M, Tundis R, Loizzo MR, and Piacente S
- Abstract
A new accession of myrobalan ( Prunus cerasifera L.) from Sicily (Italy) was studied for the first time for its chemical and nutraceutical properties. A description of the main morphological and pomological traits was created as a tool for characterization for consumers. For this purpose, three different extracts of fresh myrobalan fruits were subjected to different analyses, including the evaluation of total phenol (TPC), flavonoid (TFC), and anthocyanin (TAC) contents. The extracts exhibited a TPC in the range 34.52-97.63 mg gallic acid equivalent (GAE)/100 g fresh weight (FW), a TFC of 0.23-0.96 mg quercetin equivalent (QE)/100 g FW, and a TAC of 20.24-55.33 cyanidine-3- O -glucoside/100 g FW. LC-HRMS analysis evidenced that the compounds mainly belong to the flavonols, flavan-3-ols, proanthocyanidins, anthocyanins, hydroxycinnamic acid derivatives, and organic acids classes. A multitarget approach was used to assess the antioxidant properties by using FRAP, ABTS, DPPH, and β -carotene bleaching tests. Moreover, the myrobalan fruit extracts were tested as inhibitors of the key enzymes related to obesity and metabolic syndrome (α-glucosidase, α-amylase, and lipase). All extracts exhibited an ABTS radical scavenging activity that was higher than the positive control BHT (IC
50 value in the range 1.19-2.97 μg/mL). Moreover, all extracts showed iron-reducing activity, with a potency similar to that of BHT (53.01-64.90 vs 3.26 μM Fe(II)/g). The PF extract exhibited a promising lipase inhibitory effect (IC50 value of 29.61 μg/mL).- Published
- 2023
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32. Health-Promoting Properties and Potential Application in the Food Industry of Citrus medica L. and Citrus × clementina Hort. Ex Tan. Essential Oils and Their Main Constituents.
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Tundis R, Xiao J, Silva AS, Carreiró F, and Loizzo MR
- Abstract
Citrus is an important genus in the Rutaceae family, with high medicinal and economic value, and includes important crops such as lemons, orange, grapefruits, limes, etc. The Citrus species is rich sources of carbohydrates, vitamins, dietary fibre, and phytochemicals, mainly including limonoids, flavonoids, terpenes, and carotenoids. Citrus essential oils (EOs) consist of several biologically active compounds mainly belonging to the monoterpenes and sesquiterpenes classes. These compounds have demonstrated several health-promoting properties such as antimicrobial, antioxidant, anti-inflammatory, and anti-cancer properties. Citrus EOs are obtained mainly from peels, but also from leaves and flowers, and are widely used as flavouring ingredients in food, cosmetics, and pharmaceutical products. This review focused on the composition and biological properties of the EOs of Citrus medica L. and Citrus clementina Hort. Ex Tan and their main constituents, limonene, γ-terpinene, myrcene, linalool, and sabinene. The potential applications in the food industry have been also described. All the articles available in English or with an abstract in English were extracted from different databases such as PubMed, SciFinder, Google Scholar, Web of Science, Scopus, and Science Direct.
- Published
- 2023
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33. Ciabatta Bread Incorporating Goji ( Lycium barbarum L.): A New Potential Functional Product with Impact on Human Health.
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Sicari V, Romeo R, Mincione A, Santacaterina S, Tundis R, and Loizzo MR
- Abstract
This work investigated the phytochemical content and bioactivity of Lycium barbarum collected in Calabria and evaluated, for the first time, the possibility of enriching traditional ciabatta bread with goji fresh flesh puree. For this purpose, goji flesh puree, bread, and bread enriched with 20% and 40% goji flesh puree (G20 and G40 samples, respectively) were subjected to several analyses. Selected compounds were quantified by UHPLC analysis in both goji fresh flesh puree and after simulation of the cooking process. The impact of the addition on key enzymes (lipase, α-amylase, and α-glucosidase) related to metabolic syndrome was assessed together with the antioxidant properties. Texture, colourimetric, and sensory analyses on enriched bread were performed to evaluate consumer acceptance. Despite cooking, the enriched bread maintained good levels of bioactive compounds compared to the berry pulp alone ( p < 0.01). The enriched bread showed the ability to protect against lipid peroxidation, with IC
50 values of 6.88 and 6.52 μg/mL for samples G20 and G40, respectively, after incubation for 30 min ( p < 0.01). Although less active than the control, the enriched bread showed inhibitory activities against the enzymes involved in the digestion of carbohydrates. From a sensory point of view, the addition of goji fresh pulp puree slightly modified the appearance but not the flavour and taste of the bread. Collectively, our results support the potential healthy function of this baked product.- Published
- 2023
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34. Biological Investigation and Chemical Study of Brassica villosa subsp. drepanensis (Brassicaeae) Leaves.
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Malfa GA, De Leo M, Tundis R, Braca A, Loizzo MR, Di Giacomo C, Raimondo FM, Bucchini AEA, and Acquaviva R
- Subjects
- Humans, Plant Extracts chemistry, Caco-2 Cells, Plant Leaves chemistry, Antioxidants chemistry, Anti-Inflammatory Agents chemistry, Water chemistry, Ethanol metabolism, Brassica metabolism
- Abstract
Brassica villosa subsp. drepanensis (Caruel) Raimondo & Mazzola, belonging to the Brassica oleracea complex, is a wild edible plant endemic to western Sicily and a relative of modern cultivated Brassica crops. In this study, the antioxidant properties, anti-inflammatory activities, enzymatic inhibition, and cytotoxicity in cancer cells of B. villosa subsp. drepanensis leaf ethanolic extract were analysed for the first time. In addition, its chemical profile was investigated partitioning the total 70% ethanol extract among ethyl acetate, n -butanol, and water to obtain three residues that were subjected to chromatographic separation. Two flavonol glycosides, a phenol glucoside, two amino acids, and purine/pyrimidine bases were obtained. The presence of the glucosinolate glucoiberin was detected in the water extract by UHPLC-MS analysis. The total polyphenol and flavonoid content of the 70% ethanol extract showed good antioxidant capacities and anti-inflammatory properties by reducing nitric oxide release and reactive oxygen species levels and increasing glutathione in lipopolysaccharide-stimulated RAW 264.7 cells. The extract inhibited the enzymatic activity of α-amylase, α-glucosidase, and, significantly, of lipase. The MTT assay showed that the extract did not affect the viability of normal HFF-1 and RAW 264.7 cells. Among the cancer cell lines tested, an antiproliferative action was only observed in CaCo-2. The cytotoxicity of the extract was further confirmed by LDH release assay and by the destabilization of the oxidative balance. Results confirmed the antioxidant properties of the crude extract responsible for the anti-inflammatory effect on healthy cells and cytotoxicity in cancer cells.
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- 2022
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35. Preparation, characterization, and bioactivity of Zingiber officinale Roscoe powder-based Pickering emulsions.
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Formoso P, Tundis R, Pellegrino MC, Leporini M, Sicari V, Romeo R, Gervasi L, Corrente GA, Beneduci A, and Loizzo MR
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- Antioxidants analysis, Antioxidants pharmacology, Butylated Hydroxytoluene, Carbohydrates, Emulsions chemistry, Lipase, Powders, Water, alpha-Amylases, beta Carotene, Zingiber officinale chemistry
- Abstract
Background: Biocompatible Pickering emulsions (PE) stabilized by tailor-made antioxidant-loaded particles have been known for some time now, but antioxidant-rich natural plant particle-based emulsions are much less well known. This study aimed to investigate the physico-chemical properties of commercial Zingiber officinale powders obtained from biological and conventional agricultural practice and ginger powder-based PE., Results: The physico-chemical and biological properties of Zingiber officinale powders (GDPs) obtained from conventional (GDPC1 and GDPC2) and biological agricultural (GDPBIO) practices, and the properties of derived PE (PE_GDPs) were examined. All GDPs showed weak aggregation in aqueous media and a sufficiently hydrophobic surface to stabilize oil-in-water (O/W) PE against coalescence for at least 1 month. Zingiber officinale powders (2% w/w) derived from biological agricultural practices (GDPBIO) demonstrated the best emulsifying properties. The Zingiber officinale powders and PE_GDPs were also characterized by their phytochemical profiles. All the investigated samples exhibited ferric reducing ability power greater than the positive control, butylated hydroxytoluene (BHT), with values ranging from 91.21 to 102.63 μmol L
-1 Fe (II) g-1 for GDPC2 and 05PE_GDPC1 (O/W=1:1), respectively. In β-carotene bleaching test the following trend GDPC1 > GDPBIO > GDPC2 was observed. A 05PE_GDPBIO sample with the oil volume fraction equal to 50% was stable to oxidation and exhibited a promising α-amylase inhibitory activity., Conclusion: The results suggest that ginger powder should be used as a starting point to design biocompatible PEs for different applications in the functional food, nutraceutical, and pharmaceutical industries. In fact, powder and based PE are characterized by a promising antioxidant activity, carbohydrate hydrolyzing enzyme and lipase inhibitory properties. Further in vivo studies are necessary to confirm these findings. © 2022 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry., (© 2022 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.)- Published
- 2022
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36. Production of High-Quality Red Fruit Juices by Athermal Membrane Processes.
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Morelli R, Conidi C, Tundis R, Loizzo MR, D'Avella M, Timpone R, and Cassano A
- Subjects
- Distillation methods, alpha-Amylases, Lipase analysis, Fruit and Vegetable Juices, Fruit chemistry
- Abstract
Membrane-based processes are increasingly used to clarify and concentrate thermo-sensitive fruit juices and plant extracts as alternatives to conventional processes. This work aimed to evaluate the quality of red fruit juices clarified and concentrated by an integrated membrane process with special regard to the preservation of valuable compounds. A red fruit juice obtained from a blend of pomegranate, cactus pear, and red orange juices of Sicilian origin was clarified by microfiltration (MF) and then pre-concentrated up to 33 °Brix by nanofiltration (NF). The pre-concentrated juice was finally concentrated by osmotic distillation (OD) up to 50 and 60 °Brix. Samples of clarified, pre-concentrated, and concentrated juice were analyzed for their physico-chemical composition and in terms of the antioxidant activity and inhibitory activity against α-amylase and lipase. The results clearly confirmed the assumption of a mild fruit juice processing method, allowing us to preserve the original nutritional and functional properties of the fresh juice. In particular, the OD retentate at 60 °Brix resulted the most active sample against pancreatic lipase and α-amylase inhibitory activity with IC
50 values of 44.36 and 214.65 μg/mL, respectively.- Published
- 2022
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37. Santolina pinnata Viv. Exerts Promising Antitumor Activity against Breast Cancer Cells and Anti-Inflammatory Effects in LPS-Stimulated RAW 264.7 Cells.
- Author
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Brindisi M, Frattaruolo L, Sicari V, Loizzo MR, Bedini G, Rago V, Tundis R, and Cappello AR
- Subjects
- Mice, Animals, Humans, Female, RAW 264.7 Cells, Lipopolysaccharides pharmacology, NF-kappa B metabolism, Plant Extracts pharmacology, Plant Extracts chemistry, Gas Chromatography-Mass Spectrometry, Anti-Inflammatory Agents pharmacology, Anti-Inflammatory Agents chemistry, Breast Neoplasms drug therapy, Asteraceae chemistry, Antineoplastic Agents pharmacology
- Abstract
Cancer is one of the largest causes of mortality in the world, and due to its incidence, the discovery of novel anticancer drugs is of great importance. Many successful anticancer drugs used in clinical practices are derived from natural products. The genus Santolina is a group of species distributed in the Mediterranean area and used in traditional medicine for their biological properties. The aim of this work was to investigate, for the first time, the multi-target biological potential of Italian Santolina pinnata in relation to their chemical profile, by which an interesting natural source of valuable phytochemicals endowed with anticancer and anti-inflammatory features could be assessed. n -Hexane (EHSP) and methanol (EMSP) extracts were investigated by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) and ultra-high-performance liquid chromatography (UHPLC), respectively. Anti-proliferative activity was analyzed on MCF-7 and MDA-MB-231 breast cancer cells, as well as on non-tumorigenic MCF-10A cells, by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay. Apoptotic death was assessed by comet assay. Cell motility and invasive features were examined in highly invasive MDA-MB-231 by wound-healing scratches, while, in both breast cancer cell lines, by gel-zymography experiments. The anti-inflammatory potential was analyzed by nitric oxide (NO) production and the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) staining experiments in bacterial lipopolysaccharides (LPS) which stimulated RAW 264.7 cells. EHSP and EMSP extracts exhibited anticancer activity against breast cancer cells, promoting apoptotic death, as well as decreasing cell migration and invasive behaviours. The highest activity (IC
50 of 15.91 μg/mL) was detected against MDA-MB-231 cells, a highly invasive breast cancer cell line. Both extracts were also able to promote anti-inflammatory effects (IC50 values ranging from 27.5 to 61.14 μg/mL), as well as to reduce NO levels by inducing inhibitory effects on NF-κB nuclear translocation in LPS-stimulated RAW 264.7 cells. The different biological behaviours found between the extracts could be related to their different chemical compositions. Herein, the multi-target biological potential of S. pinnata in inducing antitumor and anti-inflammatory effects was comprehensively demonstrated. These findings will provide important stepping-stones for further investigations and may lead to the development of highly effective S. pinnata extract-based treatments for breast cancer and inflammatory processes.- Published
- 2022
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38. Carbon Source Influences Antioxidant, Antiglycemic, and Antilipidemic Activities of Haloferax mediterranei Carotenoid Extracts.
- Author
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Giani M, Gervasi L, Loizzo MR, and Martínez-Espinosa RM
- Subjects
- Carbon, Carotenoids pharmacology, Carotenoids chemistry, Plant Extracts pharmacology, Plant Extracts chemistry, Antioxidants pharmacology, Haloferax mediterranei
- Abstract
Haloarchaeal carotenoids have attracted attention lately due to their potential antioxidant activity. This work studies the effect of different concentrations of carbon sources on cell growth and carotenoid production. Carotenoid extract composition was characterized by HPLC-MS. Antioxidant activity of carotenoid extracts obtained from cell cultures grown under different nutritional conditions was determined by 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) and 1,1-diphenyl-2-picrylhydrazyl (DPPH), Ferric Reducing Ability Power (FRAP) and β-carotene bleaching assays. The ability of these carotenoid extracts to inhibit α-glucosidase, α-amylase, and lipase enzymes was also assessed to determine if they could be used to reduce blood glucose and lipid absorption. The maximum production of carotenoids (92.2 µg/mL) was observed combining 12.5% inorganic salts and 2.5% of glucose/starch. Antioxidant, hypoglycemic, and antilipidemic studies showed that higher carbon availability in the culture media leads to changes in the extract composition, resulting in more active haloarchaeal carotenoid extracts. Carotenoid extracts obtained from high-carbon-availability cell cultures presented higher proportions of all- trans -bacterioruberin, 5- cis -bacterioruberin, and a double isomeric bacterioruberin, whereas the presence 9- cis -bacterioruberin and 13- cis -bacterioruberin decreased. The production of haloarchaeal carotenoids can be successfully optimized by changing nutritional conditions. Furthermore, carotenoid composition can be altered by modifying carbon source concentration. These natural compounds are very promising in food and nutraceutical industries.
- Published
- 2022
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39. Glucosinolates and Omega-3 Fatty Acids from Mustard Seeds: Phytochemistry and Pharmacology.
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Das G, Tantengco OAG, Tundis R, Robles JAH, Loizzo MR, Shin HS, and Patra JK
- Abstract
Seeds from mustard (genera Brassica spp. and Sinapsis spp.), are known as a rich source of glucosinolates and omega-3 fatty acids. These compounds are widely known for their health benefits that include reducing inflammation and lowering the risk of cardiovascular diseases and cancer. This review presented a synthesis of published literature from Google Scholar, PubMed, Scopus, Sci Finder, and Web of Science regarding the different glucosinolates and omega-3 fatty acids isolated from mustard seeds. We presented an overview of extraction, isolation, purification, and structure elucidation of glucosinolates from the seeds of mustard plants. Moreover, we presented a compilation of in vitro, in vivo, and clinical studies showing the potential health benefits of glucosinolates and omega-3 fatty acids. Previous studies showed that glucosinolates have antimicrobial, antipain, and anticancer properties while omega-3 fatty acids are useful for their pharmacologic effects against sleep disorders, anxiety, cerebrovascular disease, neurodegenerative disease, hypercholesterolemia, and diabetes. Further studies are needed to investigate other naturally occurring glucosinolates and omega-3 fatty acids, improve and standardize the extraction and isolation methods from mustard seeds, and obtain more clinical evidence on the pharmacological applications of glucosinolates and omega-3 fatty acids from mustard seeds.
- Published
- 2022
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40. The potential of pumpkin seed oil as a functional food-A comprehensive review of chemical composition, health benefits, and safety.
- Author
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Šamec D, Loizzo MR, Gortzi O, Çankaya İT, Tundis R, Suntar İ, Shirooie S, Zengin G, Devkota HP, Reboredo-Rodríguez P, Hassan STS, Manayi A, Kashani HRK, and Nabavi SM
- Subjects
- Antioxidants pharmacology, Carotenoids, Fatty Acids chemistry, Female, Functional Food, Humans, Pharmaceutical Preparations, Phytochemicals, Phytoestrogens, Plant Oils chemistry, Plant Oils pharmacology, Polyphenols, Squalene, Tocopherols, Anti-Infective Agents, Cucurbita chemistry, Food Ingredients
- Abstract
The growing interest in foods that can be beneficial to human health is bringing into focus some products that have been used locally for centuries but have recently gained worldwide attention. One of these foods is pumpkin seed oil, which has been used in culinary and traditional medicine, but recent data also show its use in the pharmaceutical and cosmetic industries. In addition, some sources refer to it as a potential functional food, mainly because it is obtained from pumpkin seeds, which contain many functional components. However, the production process of the oil may affect the content of these components and consequently the biological activity of the oil. In this review, we have focused on summarizing scientific data that explore the potential of pumpkin seed oil as a functional food ingredient. We provide a comprehensive overview of pumpkin seed oil chemical composition, phytochemical content, biological activity, and safety, as well as the overview of production processes and contemporary use. The main phytochemicals in pumpkin seed oil with health-related properties are polyphenols, phytoestrogens, and fatty acids, but carotenoids, squalene, tocopherols, and minerals may also contribute to health benefits. Most studies have been conducted in vitro and support the claim that pumpkin seed oil has antioxidant and antimicrobial activities. Clinical studies have shown that pumpkin seed oil may be beneficial in the treatment of cardiovascular problems of menopausal women and ailments associated with imbalance of sex hormones., (© 2022 Institute of Food Technologists®.)
- Published
- 2022
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41. Advances on Natural Abietane, Labdane and Clerodane Diterpenes as Anti-Cancer Agents: Sources and Mechanisms of Action.
- Author
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Acquaviva R, Malfa GA, Loizzo MR, Xiao J, Bianchi S, and Tundis R
- Subjects
- Abietanes pharmacology, Humans, Phytochemicals therapeutic use, Antineoplastic Agents pharmacology, Antineoplastic Agents therapeutic use, Diterpenes chemistry, Diterpenes, Clerodane chemistry, Diterpenes, Clerodane pharmacology, Neoplasms drug therapy
- Abstract
Extensive research over the past decades has identified numerous phytochemicals that could represent an important source of anti-cancer compounds. There is an immediate need for less toxic and more effective preventive and therapeutic strategies for the treatment of cancer. Natural compounds are considered suitable candidates for the development of new anti-cancer drugs due to their pleiotropic actions on target events with multiple manners. This comprehensive review highlighted the most relevant findings achieved in the screening of phytochemicals for anticancer drug development, particularly focused on a promising class of phytochemicals such as diterpenes with abietane, clerodane, and labdane skeleton. The chemical structure of these compounds, their main natural sources, and mechanisms of action were critically discussed.
- Published
- 2022
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42. Reuse of Food Waste: The Chemical Composition and Health Properties of Pomelo ( Citrus maxima ) Cultivar Essential Oils.
- Author
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Badalamenti N, Bruno M, Schicchi R, Geraci A, Leporini M, Tundis R, and Loizzo MR
- Subjects
- Antioxidants chemistry, Fruit chemistry, Lipase analysis, Monoterpenes analysis, alpha-Amylases, alpha-Glucosidases, Citrus chemistry, Oils, Volatile chemistry, Refuse Disposal
- Abstract
The aim of the present study is to investigate the chemical profile, antioxidant activity, carbohydrate-hydrolysing enzyme inhibition, and hypolipidemic effect of essential oils (EOs) extracted from Sicilian Citrus maxima (pomelo) flavedo. Using gas-chromatography-mass spectrometry analysis (GC-MS) we analysed the Eos of five cultivars of C. maxima, namely, 'Chadock', 'Maxima', 'Pyriformis', 'Terracciani', and 'Todarii', and their blends. The antioxidant activity was performed by using a multi-target approach using 2,2'-Azino-Bis-3-Ethylbenzothiazoline-6-Sulfonic acid (ABTS), 2,2-Diphenyl-1-picrylhydrazyl (DPPH), ferric reducing ability power (FRAP), and β-carotene bleaching tests. The α-amylase, α-glucosidase, and lipase-inhibitory activities were also assessed. GC-MS analyses revealed D-limonene as the main monoterpene hydrocarbon in all cultivars, albeit with different percentages in the range of 21.72-71.13%. A good content of oxygenated monoterpenes was detected for all cultivars, especially for 'Todarii'. The analysis of the principal components (PCA), and related clusters (HCA), was performed to find chemo-diversity among the analysed samples. EOs from 'Chadock' and 'Maxima' were statistically similar to each other, and they differed from P3 in the smaller amount of sesquiterpene hydrocarbons, while the oils from 'Terracciani' and 'Todarii' were found to be chemically and statistically different. 'Chadock' EO was the most active to scavenge radicals (IC
50 values of 22.24 and 27.23 µg/mL in ABTS and DPPH tests, respectively). 'Terracciani' EO was the most active against both lipase and α-amylase, whereas the blends obtained by the combination (1:1 v / v ) of C. maxima 'Maxima' + 'Todarii' were the most active against α-glucosidase. Generally, the blends did not exert a unique behaviour in potentiating or reducing the bioactivity of the pomelo EOs.- Published
- 2022
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43. An Overview of Traditional Uses, Phytochemical Compositions and Biological Activities of Edible Fruits of European and Asian Cornus Species.
- Author
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Tenuta MC, Deguin B, Loizzo MR, Cuyamendous C, Bonesi M, Sicari V, Trabalzini L, Mitaine-Offer AC, Xiao J, and Tundis R
- Abstract
Cornus species are widely distributed in central and southern Europe, east Africa, southwest Asia, and America. Several species are known for edible fruits, especially Cornus mas and Cornus officinalis . These delicious fruits, characterized by their remarkable nutritional and biological values, are widely used in traditional medicine. In contrast to the other edible Cornus species, C. mas and C. officinalis are the most studied for which little information is available on the main phytochemicals and their biological activities. Fruits are characterised by several classes of secondary metabolites, such as flavonoids, phenolic acids, lignans, anthocyanins, tannins, triterpenoids, and iridoids. The available phytochemical data show that the different classes of metabolites have not been systematically studied. However, these edible species are all worthy of interest because similarities have been found. Thus, this review describes the traditional uses of Cornus species common in Europe and Asia, a detailed classification of the bioactive compounds that characterize the fruits, and their beneficial health effects. Cornus species are a rich source of phytochemicals with nutritional and functional properties that justify the growing interest in these berries, not only for applications in the food industry but also useful for their medicinal properties.
- Published
- 2022
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44. Impact of Processing on Antioxidant Rich Foods.
- Author
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Loizzo MR and Tundis R
- Abstract
Food is processed to make it safe, to make its shelf-life more stable, and to make it more desirable [...].
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- 2022
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45. Evaluation of Selected Quality Parameters of "Agristigna" Monovarietal Extra Virgin Olive Oil and Its Apple Vinegar-Based Dressing during Storage.
- Author
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Loizzo MR, Sicari V, Spizzirri UG, Romeo R, Tundis R, Mincione A, Nicoletta FP, and Restuccia D
- Abstract
This study aimed to investigate the quality parameters and the oxidative stability (180 days of storage) of a water-oil emulsion formulated with Calabrian (Italy) monovarietal Agristigna extra virgin olive oil and apple vinegar. The best extra virgin olive oil/apple vinegar ratio was found to be 85/15 ( v / v ) and lecithin (2% w / v ) was the best additive to reach proper stability and viscosity over time. An increase of lightness parameters was evidenced in both products in a storage time-dependent manner. During storage, both oil and dressing showed a free acidity level beyond the accepted limit for extra virgin olive oil, whereas a slight increase of the peroxide value was observed only for Glasoil at the end of the observation time without affecting sensory attributes. A general decrease of phytochemicals was observed for extra virgin olive oil and Glasoil, with different reduction trends and degrees depending on the chemical class. A lower stability of Glasoil during shelf-life was confirmed by the worsening of the rheological features and by the polyunsaturated fatty acids reduction (up to -21.71%) with a corresponding increase of the monounsaturated fatty acids/polyunsaturated fatty acids ratio (about +25.69%).
- Published
- 2022
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46. Essential Oils and Extracts of Juniperus macrocarpa Sm. and Juniperus oxycedrus L.: Comparative Phytochemical Composition and Anti-Proliferative and Antioxidant Activities.
- Author
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Meringolo L, Bonesi M, Sicari V, Rovito S, Passalacqua NG, Loizzo MR, and Tundis R
- Abstract
In this work, we conducted a comparative phytochemical, chemotaxonomic, and biological study of essential oils (EOs) and extracts (ethyl acetate and methanol) obtained from the leaves of Juniperus macrocarpa and J. oxycedrus . The dominant compounds of J. macrocarpa EO, analysed by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS), are α-pinene, sabinene, manoyl oxide, and germacrene D, whereas α-pinene, limonene, ( Z , E )-farnesol, β-pinene, and γ-cadinene are the most representative volatiles of J. oxycedrus EOs. A multivariate analysis of EOs, included a selection of literature data comparing our samples to samples of J. oxycedrus / macrocarpa / deltoides from the Mediterranean area, was performed. As evident by high-performance liquid chromatography (HPLC) analyses, apigenin, (-)-epicatechin, and luteolin were abundant in J. oxycedrus extracts, while gallic acid, kaempferol-3- O -glucoside, and protocatechuic acid were the dominant constituents of J. macrocarpa extracts. EOs and extracts have been investigated for their potential antioxidant properties and anti-proliferative activity against lung adenocarcinoma (A549), breast cancer (MCF-7 and MDA-MB-231), and lung large cell carcinoma (COR-L23) human cell lines. The methanol and ethyl acetate extracts of J. oxycedrus exerted the most valuable antioxidant activity and exhibited the most promising activity against the COR-L23 cell line with an IC
50 of 26.0 and 39.1 μg/mL, respectively, lower than that obtained with the positive control (IC50 of 45.5 μg/mL). To the best of our knowledge, this is the first report highlighting the anti-proliferative activity of J. oxycedrus and J. macrocarpa extracts against this lung cancer cell line. Our results indicate that J. oxycedrus may be considered a source of natural compounds with antioxidant and anti-proliferative effects that could be suitable for future applications.- Published
- 2022
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47. An Insight into Salvia haematodes L. (Lamiaceae) Bioactive Extracts Obtained by Traditional and Green Extraction Procedures.
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Tundis R, Passalacqua NG, Bonesi M, and Loizzo MR
- Abstract
Even though Salvia is one of the most known genera of the Lamiaceae family, some traditionally used Salvia species are still now less investigated. To that end, the present study aims to evaluate the chemical profile and the potential bioactivities of extracts and related fractions obtained from the endemic sage Salvia haematodes L. by applying a traditional extraction method such as Soxhlet apparatus (SHS) and the rapid solid-liquid dynamic extraction (RSLDE) by Naviglio extractor
® (SHN), considered among the "green techniques" operating at room temperature and with minimum solvent employment and minimum energy. Acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) inhibitory activity was measured by a modified Ellman's method. The antioxidant activity was investigated by using 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), ferric reducing ability power (FRAP), and β-carotene bleaching tests. The SHN methanol fraction resulted the most active in all assays in particular in inhibiting lipid peroxidation with IC50 of 1.7 and 1.6 μg/mL, respectively, after 30 and 60 min of incubation. The SHN n -hexane fraction exhibited a selective activity against AChE with half-maximal inhibitory concentration (IC50 ) of 22.9 μg/mL, while the SHS n -hexane extract was more active against BChE (IC50 of 30.9 μg/mL). Based on these results, these fractions were subjected to further bio-fractionation by Medium Pressure Liquid Chromatography (MPLC) and the relative obtained fractions were investigated for their AChE and BChE inhibitory activity. A comparative analysis with bio-activity and chemical profile was performed. The observed biological effects provided us with a good starting point for further studies on S. haematodes extracts and fractions such as agents beneficial for the treatment of AD.- Published
- 2022
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48. Chemical Compositions and Antioxidant Activities of Essential Oils, and Their Combinations, Obtained from Flavedo By-Product of Seven Cultivars of Sicilian Citrus aurantium L.
- Author
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Badalamenti N, Bruno M, Schicchi R, Geraci A, Leporini M, Gervasi L, Tundis R, and Loizzo MR
- Subjects
- Monoterpenes chemistry, Monoterpenes analysis, Terpenes chemistry, Terpenes analysis, Phytochemicals chemistry, Phytochemicals pharmacology, Phytochemicals analysis, Plant Oils chemistry, Plant Oils pharmacology, Oils, Volatile chemistry, Oils, Volatile pharmacology, Citrus chemistry, Antioxidants chemistry, Antioxidants pharmacology, Acyclic Monoterpenes chemistry, Gas Chromatography-Mass Spectrometry, Limonene chemistry, Bicyclic Monoterpenes chemistry
- Abstract
In this work, seven Citrus aurantium essential oils (EOs) derived from flavedo of cultivars 'Canaliculata', 'Consolei', 'Crispifolia', 'Fasciata', 'Foetifera', 'Listata', and 'Bizzaria' were investigated. EOs were also combined in 1:1 ( v / v ) ratio to identify possible synergism or antagonism of actions. GC-MS analysis was done to investigate Eos' phytochemical profiles. The antioxidant activity was studied by using a multi-target approach based on FRAP, DPPH, ABTS, and β-carotene bleaching tests. A great difference was observed in EOs' phytochemical profiles. d-limonene (33.35-89.17%) was the main monoterpene hydrocarbon, and α-Pinene, β-myrcene, and β-linalool were identified in almost all samples. Among EOs, only C3 showed high quantitative and qualitative variability in its chemical composition. The chemical diversity of EOs was also demonstrated by PCA and HCA statistical analysis. Samples C2, C4, C5, C6, and C7 were statistically similar to each other, while C1 and C3 were characterized as having a different amount of other compounds and oxygenated monoterpenes, respectively, with respect to the other EOs mentioned. The global antioxidant score (GAS) revealed that among the tested EOs, C. aurantium 'Fasciata' EO had the highest antioxidant potential, with a GAS value of -0.47, whereas among combinations, the EO obtained by mixing 'Canaliculata' + 'Bizzaria' was the most active. Comparison by theoretical and real data on inhibitory concentration (IC
50 ) and FRAP values did not reveal any significant effect of synergism or antagonism of actions to be valid in all biological applied tests. These findings, considered together, represent an important starting point to understand which compounds are responsible for the activities and their future possible industrial application.- Published
- 2022
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49. Bioavailability Study of Isothiocyanates and Other Bioactive Compounds of Brassica oleracea L. var. Italica Boiled or Steamed: Functional Food or Dietary Supplement?
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Orlando P, Nartea A, Silvestri S, Marcheggiani F, Cirilli I, Dludla PV, Fiorini R, Pacetti D, Loizzo MR, Lucci P, and Tiano L
- Abstract
The levels of bioactive compounds in broccoli and their bioavailability following broccoli intake can be affected by the cooking procedures used for vegetable preparation. In the present pilot study, we compared the human plasma bioavailability of antioxidant compounds (β-carotene, lutein and isothiocyanate) and of phylloquinone (vitamin K) on seven volunteers before and after the administration of boiled and steamed broccoli. Moreover, plasma isothiocyanate (ITCs) levels were also evaluated after the administration of a single dose of BroccoMax
® , a dietary supplement containing GLSs with active myrosinase. Steam-cooking has been demonstrated to promote higher plasma bioavailability in ITCs than boiling (AUCSTEAMED = 417.4; AUCBOILED = 175.3) and is comparable to that reached following the intake of BroccoMax® , a supplement containing glucoraphanin and active myrosinase (AUC = 450.1). However, the impact of boiling and steaming treatment on plasma bioavailability of lipophilic antioxidants (lutein and β-carotene) and of phylloquinone was comparable. The lutein and β-carotene plasma levels did not change after administration of steamed or boiled broccoli. Conversely, both treatments led to a similar increase of phylloquinone plasma levels. Considering the antioxidant action and the potential chemopreventive activity of ITCs, steaming treatments can be considered the most suitable cooking method to promote the health benefits of broccoli in the diet.- Published
- 2022
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50. Mechanistic aspects of carotenoid health benefits - where are we now?
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Bohn T, Bonet ML, Borel P, Keijer J, Landrier JF, Milisav I, Ribot J, Riso P, Winklhofer-Roob B, Sharoni Y, Corte-Real J, van Helden Y, Loizzo MR, Poljšak B, Porrini M, Roob J, Trebše P, Tundis R, Wawrzyniak A, Rühl R, and Dulińska-Litewka J
- Subjects
- Antioxidants, Carotenoids, Dietary Supplements, Humans, Nutritional Status, Diabetes Mellitus, Type 2
- Abstract
Dietary intake and tissue levels of carotenoids have been associated with a reduced risk of several chronic diseases, including cardiovascular diseases, type 2 diabetes, obesity, brain-related diseases and some types of cancer. However, intervention trials with isolated carotenoid supplements have mostly failed to confirm the postulated health benefits. It has thereby been speculated that dosing, matrix and synergistic effects, as well as underlying health and the individual nutritional status plus genetic background do play a role. It appears that our knowledge on carotenoid-mediated health benefits may still be incomplete, as the underlying mechanisms of action are poorly understood in relation to human relevance. Antioxidant mechanisms - direct or via transcription factors such as NRF2 and NF-κB - and activation of nuclear hormone receptor pathways such as of RAR, RXR or also PPARs, via carotenoid metabolites, are the basic principles which we try to connect with carotenoid-transmitted health benefits as exemplified with described common diseases including obesity/diabetes and cancer. Depending on the targeted diseases, single or multiple mechanisms of actions may play a role. In this review and position paper, we try to highlight our present knowledge on carotenoid metabolism and mechanisms translatable into health benefits related to several chronic diseases.
- Published
- 2021
- Full Text
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