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The amalgamation of garlic's antibacterial potency with olive oil's nutritional benefits provides a natural, effective way to boost health and counters microbial threats. This study explored the antioxidant and antibacterial traits of garlic-enriched virgin olive oil (VOO) samples, focusing on various garlic forms (fresh, oven-dried, freeze-dried). Comparative analysis revealed fresh garlic's highest total phenolic content, flavonoid content, and strongest DPPH scavenging activity. GC/MS analysis unveiled distinct volatile profiles. Fresh garlic oil contained elevated allyl-methy-sulfide, diallyl-trisulfide, methyl-propyl-disulfide levels. Antibacterial evaluation displayed substantial inhibition zones, especially fresh garlic oil against E. coli, and oven-dried/freeze-dried garlic oils against P. aeruginosa. Lower Minimal Inhibitory Concentration (MIC) values for fresh garlic oil and freeze-dried garlic oil against both Gram-negative and Gram-positive bacteria signify potent antibacterial activity of garlic-enriched VOO. These findings underscore garlic-enriched VOO's potential as natural antibacterial agents, fortified with antioxidant traits, while emphasizing drying methods' role in shaping volatile compounds [ABSTRACT FROM AUTHOR]

Two new sesquiterpenoid glycosides, 8α (H)-eudesmane-1,3,11 (13)-triene-2-one -12-O-β-D-glucopyranoside (1) and dmetelisproside B (2), together with ten known compounds (3–12) were isolated from calyces of Physalis alkekengi L. var. franchetii (Mast.) Makino (PAF). Their structures were unambiguously elucidated through HR-ESI-MS, UV, IR, and NMR spectral data. Compounds 1, 10, and 12 exhibited DPPH scavenging ability with IC50 values of 33.69 ± 6.65, 6.29 ± 0.06, and 25.66 ± 3.06 μM, respectively. Additionally, 10 and 12 demonstrated weak α-glucosidase inhibition activity with IC50 values of 250.9 ± 6.60 and 347.6 ± 2.48 μM, respectively. [ABSTRACT FROM AUTHOR]

This study investigated the possibility of using active coatings based on Zedo gum containing essential oils of Zataria multiflora Boiss (ZE) and tarragon (TE) to increase the shelf life and maintain the quality of freshly cut potato strips. The chemical compositions of ZE and TE were initially identified, and their antioxidant and antimicrobial activities were investigated. ZE consisted mainly of carvacrol (26.26%), p‐cymene (21.50%), thymol (18.05%), and linalool (11.31%), and those of TE comprised p‐allylanisole (81.92%), β‐Ocimene E (8.06%), and β‐Ocimene Z (5.35%). Afterwards, a Zedo gum active coating (1% v/w) containing 1% (v/v) essential oil was prepared, and the produced coating solutions were used to soak the potato strips for 5 min. The coated potatoes were kept fresh in a refrigerator for 9 days, and their quality characteristics were examined every 3 days. The results show that the weight loss, browning index, total microbial count, and mold and yeast counts in the strips increased during 9 days of cold storage, and hardness decreased (p <.05). However, the coatings of strips, especially those containing essential oils, reduced the intensity of changes in moisture, color, and hardness, increased microbial stability, and maintained the sensory acceptance of strips compared with the uncoated sample (control). Finally, this study demonstrated that the quality and shelf life of fresh potato strips can be improved by using active coatings based on Zedo gum containing ZE and TE (especially ZE). [ABSTRACT FROM AUTHOR]

This work aims to add value to the Lavandula genus by identifying the chemical composition, antioxidant, and antimicrobial activities of two species lavender from Oulmès in Morocco; Lavandula abrialis and Lavandula stoechas. The uniqueness lies in the integrated approach that combines in vitro and in silico analyses to assess the biological properties of the essential oils (EO). The objective of this study is to enhance the significance of the Lavandula genus by analyzing the chemical composition, antioxidant properties, and antimicrobial effects of two lavender species found in Oulmès, Morocco: Lavandula abrialis and Lavandula stoechas. The distinctiveness is in the comprehensive methodology that merges in vitro and in silico investigations to evaluate the biological characteristics of the essential oils (EO). The extraction of essential oils (EO) by hydrodistillation from the aerial parts of Lavandula abrialis gave a high yield of essential oils (2.9%) compared to Lavandula stoechas (2.3%). A GC-MS analysis of the chemical composition revealed 56 chemical compounds, with some variation in the predominant components, representing between 99.98% and 100% of the EOs of the studied lavenders. Their antioxidant activity was assessed using the DPPH test. This method revealed that L. stoechas EO has a higher percentage of free radical inhibition than L. abrialis. The IC50 values demonstrate that the antioxidant activity of ascorbic acid is higher (1.62 g/mL) than the EOs of tested plants. Noteworthy, the EO of L. stoechas is more potent (12.94 g/mL) than that of Lavandula tibialis (34.71 g/mL). Regrading, the antibacterial tests, the EO of L. abrialis was particularly active against Staphylococcus aureus BLACT, which is inhibited at a concentration of 6.25 g/mL, while L. stoechas EO has a strong effect on Escherichia coli, with a MIC of 1.56 g/mL. Concerning the antifungal activity of the EOs, yeasts showed sensitivity toward EOs extracted from both L. tibialis and L. stoechas. Moreover, an in silico study was conducted targeting sarA protein of S. aureus (PDB ID: 2fnp) and NADPH oxidase from Lavandula sanfranciscensis (PDB: 2CDU) and results showed that Ishwarone and Selina-3,7 (11)-diene exhibited highest binding energy with -9.8 and -10.8 kcal/mol respectively. Therefore, these two compounds could be used as an antibacterial and antioxidant agents however more experimental and molecular study should be required. [ABSTRACT FROM AUTHOR]

Eremurus spectabilis M. Bieb was extensively investigated experimentally and theoretically, including the antioxidant properties of compounds such as flavonoids, hydroxycinnamic acid derivatives, hydroxybenzoic acid derivatives, and organic acids. Antioxidant activity was investigated using the Density Functional Theory (DFT) method based on three known mechanisms: hydrogen atom transfer (HAT), single electron transfer followed by proton transfer (SET-PT), and sequential proton loss electron transfer (SPLET). Subcritical water extraction (SWE), soxhlet extraction (SE), and solvent extraction (SOE) techniques were applied in the extraction process. Malic acid was the major compound with an extract concentration of 38,532.84 ± 1849.58 µg analyte/kg, total phenolics, and free radical scavenging activity were 10.67 mg gallic acid/mL extract and 73.89% per mg/mL extract, respectively. P, Fe, Na, Mg, K, and Ca were the main elements. The antibacterial activity of E. spectabilis against seven bacteria was evaluated, and it was found to be higher than the commercial antibiotics P10 and AMC30. [ABSTRACT FROM AUTHOR]

A number of bioactive azo dyes based on xanthene moiety were synthesized through an eco-friendly route using CuI-graphene nanocomposite as a sustainable reusable catalyst in ethanol aqueous solution at room temperature. The procedure involved the reaction of 3,4-(methylenedioxy)aniline with pre-synthesized (E)-1,2-diphenyl-1-diazene in 2: 1 molar ratio. The use of water as a green and nonvolatile solvent, energy-saving, and high yields of products within a short reaction time increase the economic and environmental superiority of the current protocol. Some of the synthesized compounds were screened for their antioxidant and antibacterial activities. Good results were obtained in both cases of antioxidant and antibacterial activities. The present study provides new insight into the application of CuI-graphene nanocomposite as a sustainable reusable catalyst for the preparation of some new xanthene-based azo dyes. It was established that several of the synthesized compounds show good antioxidant and antibacterial activities. Due to the best of our knowledge of these previously known compounds, this study is the first report of their promising antioxidant and antibacterial properties. Using water as a green and nonvolatile solvent, energy-saving, and high yields of products within a short reaction time increases the economic and environmental superiority of the current protocol. [ABSTRACT FROM AUTHOR]

The present work aimed to investigate the effect of salinity in natural habitats in Egypt on the main secondary metabolites of Rosmarinus officinalis L. and Artemisia monosperma L. plants compared to plants grown at normal conditions. Plants grown under salinity were collected from Egyptian Western Coastal region habitats irrigated with underground water. Results showed that salinity increased the essential oil percentage of R. officinalis L. by 52.7% and A. monosperma L by 0.29% in addition to the total phenolics and flavonoids content in dry leaves compared to control plants. GC/MS analysis of rosemary essential oils revealed that salinity decreased the amount of some major oil monoterpenes component as verbenone, with a slight effect on 1,8 cineole and increased Camphor, endo- Boreneol, and linalool in addition to the appearance of new specific components such as Chrysanthenone monoterpene ketone and Caryophyllene sesquiterpene, while, in the case of Artemisia, the GC/MS showed that Artemisia ketone, Camphor, β -phellandrene monoterpenes andα-Bisabolol sesquiterpenewere the major oil components; salinity decreased Camphor and β -phellandrene content and increased artemisia ketone and α-Bisabolol oil content. About 11 new oil constituents were detected such as (+)-2-Bornanone and Sesquisabinene hydrate. Mineral ions (N, K+, Ca+2, P, and Mg+2) uptake by R. officinalis and A. monosperma decreased in plants grown under salinity, while Na content increased compared to corresponding controls. Results demonstrated that both plants could tolerate the high salinity level in natural Western Coastal region soil which promoted more production of valuable secondary metabolites. The antimicrobial effect of R. officinalis L. and A. monosperma L. leaf methanolic extracts, results showed that R. officinalis extracts had an inhibitory response against all tested gram-positive and negative bacteria, in addition to the yeast (Candida albicans), whereas there was no any inhibitory effect concerning A. monosperma L extract on the tested species. [ABSTRACT FROM AUTHOR]

The Portulaca oleracea L. (P. oleracea) phytochemical composition (contains omega-3 fatty acids, quercetin, rutin, gallo tannins, proteins) is responsible for its biological effects, e.g. antioxidative, antibacterial, anti-inflammatory and antiradiation activity. The plant has a C4 metabolism and it is known for its tolerance to different stressors, such as salinity, no water, high - temperature conditions, and 9 kGy radiation. The purpose of the present investigation was focused on the inhibitory effects of P. oleracea leaves extracts against 5 - 10 kGy radiation - induced abiotic stress, and assess to total phenol, flavonoid, and tannins content; antibacterial potential (Staphylococcus aureus ATCC25923, Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853) and antioxidant capacity. The free dried, powdered P. oleracea samples were 60Co irradiated, 50 % ethanol solvent (v/v) extracted and compared to 0 kGy extract. 10 kGy irradiated extract provide to be potentially effective against bacterial strains and possessed stable antioxidant activity, towards DPPH (p ˂ 0.002), ABTS•+ (p ˂ 0.05), FRAP (p ˂ 0.05) and NO (p ˂ 0.002). In addition, highly sensitive Electron Paramagnetic Resonance (EPR) was used to evaluate antiradical capacity. Single, symmetrical signal (g = 2.0023) was recorded in 10 kGy irradiated P. oleracea extract, comparable to the EPR signal in non-irradiated sample and depended directly on the antiradical potential. Moreover, in vitro P. oleracea inhibited the superoxide anion (•O2−), hydroxyl (•OH), alkyl radicals, and exhibited antioxidant properties against 10 kGy irradiation. [ABSTRACT FROM AUTHOR]

Caused by pathogenic microorganisms, infectious diseases are known to cause high mortality rates, severe burdens of disability, and serious worldwide aftermaths. Drug-resistant pathogens have reduced the efficacy of available therapies against these diseases, thus accentuating the need to search for effective antimicrobials. Medicinal plants have served as starting material for the preparation of a number of antimicrobial agents. To this end, the present study highlights the green synthesis of Cocos nucifera-based nanomaterials and evaluation of the mechanistic basis of their antimicrobial action. Accordingly, Cocos nucifera extract was used for the reduction of silver nitrate solution to afford silver nanoparticles. These entities were further incorporated onto sulfuric-acid-based activated carbons to generate the nanocomposites. The antimicrobial activity of the as-prepared nanomaterials was evaluated using the broth microdilution method, while the antioxidant activity was assessed through standard methods. The cytotoxicity of potent nanomaterials was assessed on Vero cells by the spectrophotometric method. As a result, nanoparticles were successfully synthesized, as evidenced by the ultraviolet–visible spectroscopy analysis that revealed an intense absorption spectrum at 433 nm. Fourier Transform Infrared Spectroscopy presented the functional group moieties involved as a capping and reducing agent in the synthesis of the nanomaterials. The incubation of nanomaterials with selected bacterial and fungal strains has led to significant inhibitory effects of these pathogens with minimum inhibitory concentrations ranging from 7.813 to 250 μg/mL. In antioxidant assays, the nanocomposites presented scavenging activities comparable to those of ascorbic acid. Cytotoxicity experiment revealed no toxic effects on Vero cells (range of selectivity indices: from >4 to >128). These results provide evidence of the implication of Cocos nucifera-based nanomaterials in targeting bacterial or fungal systems that mediate free-radical damage or by inhibiting the oxidative damage caused by selected bacteria and fungi, the most susceptible being Escherichia coli and Candida albicans, respectively. [ABSTRACT FROM AUTHOR]

Research on the use of medicinal plants to treat numerous diseases has been widely conducted. However, for chronic wound healing, the availability of medicinal plants for treatment remains rare. Gels containing active plant-based compounds may provide a solution. Phyllanthus niruri, known as "meniran" in Indonesian, is a medicinal plant used traditionally to cure various diseases. This study aimed to examine the antioxidant activities of Meniran extract gel, potentially for wound healing. Meniran was extracted using 70% methanol and formulated into a gel. The Meniran gel was composed of three formulations: 3%, 4%, and 5% sodium carboxymethylcellulose (CMC-Na) supplemented with 5% Meniran extract. The quality of the gel was assessed based on homogeneity, spreadability, pH, and viscosity. This study utilized 2,2'-azino-bis (3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) assays to evaluate the antioxidant activity of Meniran gel at seven different concentrations through its scavenging capacities. The results were calculated to determine the median inhibitory concentration (IC50). Analysis of variance (ANOVA) and post-hoc Tukey's honestly significant difference (HSD) were used for statistical analysis (p < 0.05). The three Meniran gel formulations showed good quality with spreadability ranging from 5.37 to 5.59 cm, pH levels from 5.90 to 6.03, and viscosity from 9.080 to 9.230 cps. Higher gel concentrations led to an increase in the free radical DPPH- and ABTS-scavenging activities. The highest DPPH and ABTS assays were found at 1,000 µg/mL with IC50 values of 69.72 µg/mL and 20.15 µg/mL, respectively. In conclusion, Meniran gel formulas exhibit good standards and have antioxidant properties suitable for wound healing therapy. [ABSTRACT FROM AUTHOR]

Three new bibenzochromenones named phanogracilins A–C (1–3) were isolated from the crinoid Phanogenia gracilis. The structure of 1 was established using X-ray crystallography as 5,5′,6,6′,8,8′-hexahydroxy-2,2′-dipropyl-4H,4′H-[7,9′-bibenzo[g]chromene]-4,4′-dione. This allowed us to assign reliably 2D NMR signals for compound 1 and subsequently for its isomer 2 that differed in the connecting position of two benzochromenone moieties (7,10′ instead of 7,9′), and compound for 3 that differed in the length of the aliphatic chain of one of the fragments. Compound 4 was derived from 1 in alkaline conditions, and its structure was elucidated as 5,5′,6′,8,8′-pentahydroxy-2,2′-dipropyl-4H,4′H-[7,9′-bibenzo[g]chromene]-4,4′,6,9-tetraone. Even though compounds 1–4 did not contain stereo centers, they possessed notable optical activity due to sterical hindrances, which limited the internal rotation of two benzochromenone fragments around C(7)–C(9′/10′) bonds. Isolated bibenzochromenones 1–4 were tested for their antiradical, neuroprotective and antimicrobial activities. Compounds 1, 3 and 4 demonstrated significant antiradical properties towards ABTS radicals higher than the positive control trolox. Compounds 1 and 4 exhibited moderate neuroprotective activity, increasing the viability of rotenone-treated Neuro-2a cells at a concentration of 1 µM by 9.8% and 11.8%, respectively. Compounds 1 and 3 at concentrations from 25 to 100 μM dose-dependently inhibited the growth of Gram-positive bacteria S. aureus and yeast-like fungi C. albicans, and they also prevented the formation of their biofilms. Compounds 2 and 4 exhibited low antimicrobial activity. [ABSTRACT FROM AUTHOR]

Background: Indiscriminate use of harmful synthetic preservatives to extend the shelf life of fish needs to be avoided. The objective of the present work was to study the qualitative and quantitative properties and bioactive properties of black tea powder found in local markets of Maharashtra. Methods: Low-value tea powder was selected through market survey and proximate analysis, total phenolic (Folin-Ciocalteau) and qualitative analysis (Agilent LC-MS system) for phenolic compounds including antioxidant properties was carried out using standard methods. Result: The results for proximate content were protein (21.15%), lipids (1.3%), total ash (9.91%), crude fibre (18.35%) and moisture (3.3%). While total phenolic content was 220.02 mg GAE/g dry tea powder. Total 12 different bioactive compounds were identified by HR-LCMS. The antioxidant properties were DPPH (88.84%), ABTS (74.94%), FRAP (1398.24 µ mol Trolox/gram dry tea powder) and metal chelating activity (25.13%). Based on the findings of this preliminary study it is opined that, black tea powder can act as a promising source of low-cost tea polyphenols for incorporation as antioxidant and antimicrobial agent for fish meat value addition. [ABSTRACT FROM AUTHOR]

Our research focused on assessing essential oils (MSEO) and aqueous extracts (MSAE) derived from M. subtomentella leaves, with a primary focus on evaluating their properties. From 1 kg of leaves, we successfully obtained 18 mL of essential oil. Upon conducting GC/MS analysis, we identified eleven compounds within the oil, collectively accounting for 100% of the constituents identified. Notably, the predominant compounds in the leaf oil were p-Menth-48) -en-3-one (50.48%), 9-Ethylbicyclo (3.3.1) nonan-9-ol (10.04%) (E)-3,3-Dimethyl-delta-1, alpha-cyclohexaneacetaldehyde (8.53%), and D-Limonene (7.22%). Furthermore, utilizing HPLC/DAD, we explored the phenolic profile of MSAE, extracted through decoction. This analysis revealed the presence of fifty-eight compounds, with five major components collectively constituting 61% of the total compounds identified, rosmarinic acid as the major one. We evaluated the antimicrobial effectiveness of the MSEO against ten different strains, observing its notable efficacy against A. Niger (MIC = 0.09%), P. digitatum (MIC = 0.5%), and G. candidum (MIC = 1%). However, the essential oil demonstrated comparatively lower efficacy against bacteria than fungi. In contrast, the MSAE did not exhibit any antimicrobial activity against the tested strains. Regarding antioxidant activity, the aqueous extract displayed a significantly higher antioxidant capacity than the essential oil, which exhibited relatively lower antioxidant activity. The IC50 values were determined to be 0.04 ± 0.01 mg/mL, 0.17 ± 0.01 mg/mL, and 13% ± 0.01% (V/V), for ascorbic acid MSAE and MSEO, respectively. We used a computational method called molecular docking to investigate how certain plant compounds affect antioxidant, antibacterial, and antifungal activities. This involved analyzing the interactions between these compounds and specific protein targets known for their roles in these activities. [ABSTRACT FROM AUTHOR]

Cancer, one of the most common pathologies in the world, has been reducing the standard of living of many people for centuries and can cause death. Many medicinal plants are widely used in cancer treatment due to their ability to improve disease symptoms and low side effects. Cydonia oblonga (C. oblonga) leaf, which is among the medicinal plants and has important health properties, is a type of plant commonly known as quince leaf. Although it originates from Asia, it is cultivated in many countries today. In this study, antioxidant, antimicrobial and cytotoxic activities of C. oblonga leaves on MCF-7 and HepG2 cell lines were investigated. As a method, the collected C. oblonga leaves were extracted in methanol and hexane solvents. The extracts were tested on MCF-7 and HepG2 cell lines using MTT Assay method for cytotoxic activity, DPPH method for antioxidant activity and well agar method for antimicrobial effects of the extract on five different microorganisms. As a results, although C. oblonga leaf in both cell lines hexane extract exhibited stronger cytotoxic activity than methanol extract, methanol extract was found to have stronger antioxidant effect than hexane extract. The extracts applied to microorganisms showed the best zone diameter effect on E. coli and the lowest effect on B. megaterium. In addition, it was observed that C. oblonga leaf has stronger antimicrobial effects than anticancer and antioxidant activity. [ABSTRACT FROM AUTHOR]

Taraxacum refers to the genus Taraxacum, which has a long history of use as a medicinal plant and is widely distributed around the world. There are over 2500 species in the genus Taraxacum recorded as medicinal plants in China, Central Asia, Europe, and the Americas. It has traditionally been used for detoxification, diuresis, liver protection, the treatment of various inflammations, antimicrobial properties, and so on. We used the most typically reported Taraxacum officinale as an example and assembled its chemical makeup, including sesquiterpene, triterpene, steroids, flavone, sugar and its derivatives, phenolic acids, fatty acids, and other compounds, which are also the material basis for its pharmacological effects. Pharmacological investigations have revealed that Taraxacum crude extracts and chemical compounds contain antimicrobial infection, anti-inflammatory, antitumor, anti-oxidative, liver protective, and blood sugar and blood lipid management properties. These findings adequately confirm the previously described traditional uses and aid in explaining its therapeutic applications. [ABSTRACT FROM AUTHOR]

Innovative approaches are urgently required to treat divestating bacterial diseases in the face of rising bacterial resistance rates. The current investigative work focused on hydro-distilling Tasmanian blue gum (Eucalyptus globulus) to isolate the essential oil, which was then tested for bioactivity, antioxidant capacity, and antibacterial activity using in-vitro and in silico assays. The antioxidant activity was avualated against DPPH and FRAP. With results of 69.63 RSA (%) (μL/L AAE) at a concentration of 5 mL/L and 51.56 (μL/L AAE) at concentration of 90 ppm in the 2,20-diphenyl-1-picryl hydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) assays, respectively, the extracted oil indicated considerable antioxidant activity. The extracted oil demonstrated powerful antibacterial activity in in-vitro tests against both Gram-positive and Gram-negative bacterial strains, including Bordetella bronchiseptica (21 mm), Staphylococcus epidermidis (19 mm), and Staphylococcus aureus (19 mm), with significant minimal inhibitory (MIC) and minimum bactericidal (MIB) concentrations. Additionally, GC-MS analysis of the oil from E. globulus identified several low-molecular-weight compounds, including Eucalyptol,γ-Terpinene, Shisool acetate, 1,3-trans,5-cis-Octatriene, 2,6-Dimethyl-1,3,5,7-octatetraene, E,E, Cyclohexene, 1-methyl-4-(1-methylethylidene), Benzene, 1-methyl-4-(1-methylethenyl), Butanoic acid, 3-methyl-, 3-methylbutyl ester, and 1,3,8-p-Menthatriene. Several other compounds were also identified, including Fenchol, 2-Methyl-trans-3a,4,7,7a-tetrahydroindane, (E,E,E)-2,4,6-Octatriene, 1,2,3,6-Tetrahydrobenzylalcohol, acetate, Alloaromadendrene, Phenol, 2-ethyl-4,5-dimethyl, Phenol, 2-methyl-5-(1-methylethyl)-,p-Cymen-7-ol, 1,5,5-Trimethyl-6-methylene-cyclohexene, 1,3-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-, 2,6-Octadien-1-ol, 3,7-dimethyl-, acetate, (Z), and more. The bioactive potential of Eucalyptus globulus essential oil against 1AJ6 and 1R4U was highlighted by molecular docking analyses, suggesting its utility as a natural source of antioxidant and antibacterial compounds with the potential to replace chemical disinfectants in a variety of applications. [ABSTRACT FROM AUTHOR]

Lesser galangal rhizomes are well known for their anti-inflammatory, anti-microbial and anti-oxidant properties. The aim of the present study was to assess the variability in morphological and biochemical characters of lesser galangal, Alpinia calcarata accessions collected from various South Indian states. The results revealed that accession IC373608 was significantly superior with respect to yield contributing traits including the rhizome length, width, fresh yield and dry recovery (6.02 cm, 2.40 cm, 14.63 g tiller-1 and 33.26% respectively) among the eighteen accessions studied. The biochemical analysis of rhizomes revealed that the maximum volatile oil and oleoresin content were found in the accession IC468880 (0.75%) and IC373608 (34.20%) respectively. The highest values for total phenols, total flavonoids and starch were observed in the accessions IC373608 (115.25 mg GAE.g-1), IC582825 (55.65 mg QE. g-1) and IC210656 (44.05 mg. g-1) respectively. The accession IC550112 (7.90%) recorded the lowest crude fibre content, whereas the highest total terpenoid content was noticed in accession IC210421 (20.25%). The GC MSMS profiling of volatile oil of A. calcarata rhizome showed the presence of 28 compounds in it. Considering all economically important characters, accessions IC373608, IC582825 and IC210421 were found to be superior and can be utilized in future crop improvement programmes. [ABSTRACT FROM AUTHOR]

Increasing antimicrobial resistance to the action of existing antibiotics has prompted researchers to identify new natural molecules with antimicrobial potential. In this study, a green system was developed for biosynthesizing gold nanoparticles (BAuNPs) using sage (Salvia officinalis L.) leaf extract bioconjugated with non-toxic, eco-friendly, and biodegradable chitosan, forming chitosan/gold bioconjugates (Chi/BAuNPs). Characterization of the BAuNPs and Chi/BAuNPs conjugates takes place using transmission electron microscopy (TEM), X-ray spectra, Fourier transform infrared (FT-IR) spectroscopy, and zeta potential (Z-potential). The chemical composition of S. officinalis extract was evaluated via gas chromatography/mass spectrometry (GC/MS). This study evaluated the antioxidant and antimicrobial activities of human pathogenic multidrug-resistant (MDR) and multisensitive (MS) bacterial isolates using the agar diffusion method. Chi/BAuNPs showed inhibition of the MDR strains more effectively than BAuNPs alone as compared with a positive standard antibiotic. The cytotoxicity assay revealed that the human breast adenocarcinoma cancer cells (MCF7) were more sensitive toward the toxicity of 5-Fu + BAuNPs and 5-Fu + Chi/BAuNPs composites compared to non-malignant human fibroblast cells (HFs). The study shows that BAuNPs and Chi/BAuNPs, combined with 5-FU NPs, can effectively treat cancer at concentrations where the free chemical drug (5-Fu) is ineffective, with a noted reduction in the required dosage for noticeable antitumor action. [ABSTRACT FROM AUTHOR]

The present study aimed at developing an injectable hydrogel based on acacia gum (AG) for wound healing acceleration. The hydrogels were synthetized through metal-ligand coordination mediated by Fe3+ and characterized in terms of gelation time, gel content, initial water content, swelling capacity, water retention ratio, and porosity. Moreover, FTIR, XRD and TGA analyses were performed for the hydrogels and allantoin (Alla) loaded ones. Furthermore, bioadhessiveness, and self-healing as well as antibacterial, toxicity and wound healing potentials of the hydrogels were evaluated. The hydrogels displayed fast gelation time, high swelling, porosity, and bioadhessiveness, as well as antioxidant, self-healing, antibacterial, blood clotting, and injectability properties. FTIR, XRD and TGA analyses confirmed hydrogel synthesis and drug loading. The Alla-loaded hydrogels accelerated wound healing by decreasing the inflammation and increasing the cell proliferation as well as collagen deposition. Hemocompatibility, cell cytotoxicity, and in vivo toxicity experiments were indicative of a high biocompatibility level for the hydrogels. Given the advantages of fast gelation, injectability and beneficial biological properties, the use of Alla-loaded hydrogels could be considered a new remedy for efficient wound healing. [ABSTRACT FROM AUTHOR]

The study aimed at the determination of phytoconstituents in Triumphetta pentandra leaf extract and evaluated its in vitro antioxidant, antimicrobial, anticholesterol, and anti-diabetic properties. The dried leaf powder was extracted in absolute methanol using the Soxhlet apparatus. Reducing potential and DPPH assays were used to test the plant extracts' ability to act as antioxidants. The antifungal and antibacterial activities of the plant extract were assessed using the well-diffusion method on agar plates. Anticholesterol as well as anti-diabetic properties of the extract were determined using the Liebermann-Butchard calorimetric assay and α-glucosidase inhibition assay, respectively. Preliminary analysis showed that there were tannins, alkaloids, phenols, steroids, saponins, and terpenoids present, with a total phenolic concentration of 348.63 mg/g gallic acid equivalent. The extract's capacity to neutralize free radicals increased dose-dependently, with a DPPH IC50 value of 368.63 μg/ml recorded. The minimum inhibitory concentration value for the extract was 250 μg/ml for gram-positive bacteria and Candida albicans and 1750 μg/ml for gram-negative bacteria. The extract's % IC50 cholesterol inhibition activity was found to be 170.45 μg/ml, while that of the standard (atorvastatin) was 177.15 μg/ml. The extract's IC50 value for α-glucosidase inhibitory activity was found to be 34.952 μg/ml. The samples' phytochemical composition was profiled using gas chromatography-mass and FTIR spectroscopy. Compounds of the terpenoids, fatty acid esters, and long-chain hydrocarbon categories were predominant in the extract. The results of the study suggested the use of Triumphetta pentandra in the treatment of bacterial and fungal infections, hypercholesterolemia, diabetes, and other conditions linked to oxidative stress. [ABSTRACT FROM AUTHOR]

Summary: Garlic peel extracts (GPE) are known to have excellent physiological activity, but research on the pre‐processing of garlic peel (GP) to enhance their bioactivity is limited. The aim of this study was to evaluate the effect of two pretreatments applied to GP, such as fermentation with Lactobacillus plantarum and heat processing (10 min roasting) and two extraction solvents (70% v/v ethanol and methanol), on the total phenolic content (TPC), total flavonoid content (TFC), antioxidant capacity (AC), and antimicrobial activity (AA) of GPE. Results showed that GPE contained appreciable quantities of TPC (50.41 ± 0.19 mgGAE/g) and TFC (47.58 ± 1.69 mgGAE/g), but were further improved by both biological and thermal pretreatments along with their AC and AA against food‐spoilage strains (Escherichia coli, Salmonella typhimurium, Staphylococcus aureus, and Listeria innocua). Ethanolic extract of 48 h‐fermented GP achieved the highest TPC (140.65 ± 0.47 mgGAE/g), TFC (68.8 ± 1.80 mgQE/g), TEAC‐DPPH (288.88 ± 6.98 μmolTE/g), TEAC‐ABTS (638.39 ± 5.35 μmolTE/g), and the lowest MIC (1.25 ± 0.0 mg/mL), showing that the increase in TPC was strong‐positive correlated to AC (Pearson's r > 0.97) and to AA (Pearson's r > 0.90). These findings revealed an innovative approach for the valorisation of garlic residues through a bioconversion process, which enhances their potential as a source of antioxidant and antimicrobial agents for possible food applications. [ABSTRACT FROM AUTHOR]

In the present study, three Sorbus species in the Rosaceae family naturally growing in Artvin province of Turkey were collected. To determine the antioxidant activity, total phenolic and flavonoids capacity of the extracts, their scavenging capacity for (2,2-diphenyl-1- picrylhydrazyl (DPPH) radical, reducing capacity for Fe3+ (FRAP) and copper (II) ions (CUPRAC) were analyzed. Besides, disc diffusion method was used to determine antibacterial activity. It was found that all Sorbus fruit, flower, leaf and pedicle methanolic extracts showed different levels of antioxidant activity. Results of the the total polyphenol, total flavonoid, FRAP, CUPRAC and DPPH analysis, the highest activity was measured in S. persica pedicle, S. umbellate var. cretica leaf, S. persica leaf, S. umbellata var. cretica leaf and S. persica leaf extracts as 25.7 ± 16.49 mg GAE/g, 7.469 ± 0.4926 mg of quercetin/g, 6.248 ± 0.2374 µmol FeSO4.7H2O/g and, 164.4 ± 4.209 mmol TEAC and 46.33 µg/mL, respectively. It was revealed that methanolic extracts of Sorbus plant showing antibacterial activity had very high minimum inhibitory concentration (MIC) values compared to ampicillin. Thus, considering the findings of the present study, it could be stated that these species merit further studies as natural antioxidant and antibacterial sourceS. [ABSTRACT FROM AUTHOR]

Since Bulgarian rose damascena oil is known for its anti-inflammatory, antioxidant, and antimicrobial properties, we investigated its antifungal activity against the species of Candida, which are among the most common opportunistic fungal pathogens. Our disk-diffusion assay revealed that Bulgarian rose damascena oil effectively inhibited the growth of Candida albicans along with various bacteria. The minimum inhibitory and fungicidal concentrations against Candida albicans and Candida glabrata were all 0.25%. Under our experimental conditions, Bulgarian rose damascena oil showed better inhibitory effects on Candida glabrata and Candida albicans than several popular essential oils reported to have antifungal activity other than Origanum vulgare oil. Interestingly, Bulgarian rose damascena oil showed better antifungal activity against Candida species at acidic pH and induced cell death of Candida species in the culture medium, with cell death seen in 25–35% of the cells exposed to 0.05% Bulgarian rose damascena oil. Furthermore, Bulgarian rose damascena oil inhibited the hyphal growth of Candida albicans cultured in the RPMI medium with fetal bovine serum. These findings collectively suggest that Bulgarian rose damascena oil has antifungal activity against Candida species and thus could potentially be developed in novel therapies for vaginitis-causing pathogenic fungi. [ABSTRACT FROM AUTHOR]

Naringenin (4′,5,7-trihydroxyflavonone) is a phytochemical mainly found in citrus fruits. It is a promising phytochemical for human health because of its beneficial effects. This review aims to present comprehensive information on naringenin biological activities along with its action mechanisms and explain the pharmacokinetic properties of naringenin. This study involves a comprehensive literature review of in vitro and in vivo studies examining the effects of naringenin. Naringenin has antidiabetic, anticancer, antimicrobial, antiobesity, gastroprotective, immunomodulator, cardioprotective, nephroprotective, and neuroprotective properties. These properties are primarily attributed to its antioxidant and anti-inflammatory activities. The most important antioxidant activities of naringenin including free radical scavenging and preventing lipid peroxidation. Naringenin can increase the concentration of antioxidant enzymes and inhibit metal chelation and various pro-oxidant enzymes. Anti-inflammatory activities of naringenin are associated with decreased mitogen-activated protein kinase activities and nuclear factor kappa B by modulating the expression and release of proinflammatory cytokine and enzymes. In vitro and in vivo studies show that naringenin has promising biological activities for a variety of diseases. More research must be conducted on the bioactivities of naringenin, and to determine its optimum dose. In addition, the efficiency of naringenin must be examined with enhanced bioavailability methods to be able to increase its therapeutic effect. [Display omitted] [ABSTRACT FROM AUTHOR]

Cyanobacteria are photosynthetic prokaryotes and are reservoir of bioactive compounds having substantial antimicrobial and antioxidant activity. They serve as a rich source of structurally novel and biologically active metabolites, holding great potential for various pharmaceutical applications. The aim of this study is to investigate in vitro antimicrobial and antioxidant activities of the extracts of Nostoc punctiforme, a filamentous heterocystous cyanobacterium predominant in the rice fields of Lakhanpur (Bargarh District), Odisha. The heterocystous cyanobacteria was collected from rice field and identified by means of morphological and molecular approach (Nostoc punctiforme Jbr02). Subsequently, in vitro antimicrobial and antioxidant activity was assayed using acetone, methanol, and benzene extract. The cyanobacterial extracts established important antimicrobial actions against bacterial and fungal pathogens with significant MIC values from 62.5 to 500 µg/ml. The methanolic extract displayed better inhibitory activities against both V. Cholerae and P. verrucosun with the MIC value 62.5µg/ml while no such activity was recorded in benzene extract against B. subtilis, A. niger and F. oxysporum pathogens. The antioxidant study, depicted that the methanolic extract showed relatively higher antiradical activity of IC50 542±0.012 µg/ml among the three solvents. The Ferric reducing assay result was also maximum in methanolic extract (0.478±0.78) as compared to benzene and acetone extract. These findings infer that Nostoc punctiforme has potential antimicrobial and antioxidant activity, unveiling its potential as a valuable source of bioactive compounds. Thus, N. punctiforme in specific and cyanobacteria in general are one of the most promising candidates for commercial applications. [ABSTRACT FROM AUTHOR]

Natural products and their analogues have contributed significantly to treatment options, especially for anti-inflammatory and infectious diseases. Thus, the primary objective of this work was to compare the bioactivity profiles of selected medicinal plants that are historically used in folk medicine to treat inflammation and infections in the body. Chemical HPTLC fingerprinting was used to assess antioxidant, phenolic and flavonoid content, while bioassay-guided HPTLC was used to detect compounds with the highest antibacterial and anti-inflammatory activities. The results of this study showed that green tea leaf, walnut leaf, St. John's wort herb, wild thyme herb, European goldenrod herb, chamomile flower, and immortelle flower extracts were strong radical scavengers. Green tea and nettle extracts were the most active extracts against E. coli, while calendula flower extract showed significant potency against S. aureus. Furthermore, green tea, greater celandine, and fumitory extracts exhibited pronounced potential in suppressing COX-1 activity. The bioactive compounds from the green tea extract, as the most bioactive, were isolated by preparative thin-layer chromatography and characterized with their FTIR spectra. Although earlier studies have related green tea's anti-inflammatory properties to the presence of catechins, particularly epigallocatechin-3-gallate, the FTIR spectrum of the compound from the most intense bioactive zone showed the strongest anti-inflammatory activity can be attributed to amino acids and heterocyclic compounds. As expected, antibacterial activity in extracts was related to fatty acids and monoglycerides. [ABSTRACT FROM AUTHOR]

The mushroom, Sanghuang, is a medicinal fungus widely used in traditional Chinese medicine that is rich in diverse bioactive compounds, including polysaccharides, phenols, flavonoids, and terpenoids. Among them, polysaccharides are considered to be the main active components of Sanghuang, which exhibit a variety of biological activities in vitro and in vivo, such as anti-tumor, immunomodulating, antioxidant, anti-inflammatory, hypoglycemic, antiviral, and anti-aging. In this paper, we examine the present state of research on the extraction; isolation and purification; structural characterization; bioactivity; and potential mechanism of action of polysaccharides from Sanghuang. The aim is to provide a scientific foundation for future Sanghuang research. [ABSTRACT FROM AUTHOR]

In this study a new, economical and green method was reported for the synthesis of Ag/CdO/Fe3O4@multi-walled carbon nanotubes (MWCNTs) MNCs as a new heterogeneous catalyst. For confirming the structure of synthesized nanocatalyst, XRD, FESEM, Energy-dispersive X-ray Spectroscopy (EDX), and TEM analyses were utilized. The Ag/CdO/Fe3O4@MWCNTs MNCs as a high-performance catalyst was employed for the preparation of a new family of substituted triazinopyrrolothiazepine using the one-pot condensation reactions of isatoic anhydride, ammonium acetate, α-haloketones, ethyl bromopyruvate, isothiocyanates, and hydrazoyl chloride in water at room temperature. Another work in this research is investigation of antioxidant property of some synthesized compounds by diphenyl-picrylhydrazine (DPPH) radical trapping experiment. Presently, bacteria that are not destroyed with drug have generated many problems in the performance of many transferable diseases. For this reason, discovering appropriate and new procedures for the dealing with these pathogens are important and recent study has focused on the investigation of the antibacterial effects on the prepared compounds. Green chemistry is the use of a set of principles to reduce or eliminate the use or generation of unsafe materials in the design, fabrication, and applications of chemical products. Among solvents, water is a green solvents and very suitable for performing organic reaction. The present procedure avoids the use of toxic solvent. Multicomponent reactions (MCRs) open diverse avenues to create novel concatenations in one pot fashion leading to diverse biologically potent heterocyclic scaffolds. [ABSTRACT FROM AUTHOR]

Ferula tingitana L. is a high perennial plant and its leaf is an alternate arrangement and yellow, and its flowers are unisexual like other Apiaceae. It has been used as a spice and for various medicinal purposes in the Mediterranean region. The paper reports antidiabetic, antimicrobial, anticholinesterase, antioxidant, and genotoxic activities of leaves, flowers, stems, and fruits methanol extracts of F. tingitana. Also, quantitative determination of some secondary metabolites was also analyzed by LC-MS/MS. Moreover, chemical composition of essential oils was analyzed. Consequently, anatomical, and morphological properties of plant were investigated. Germacrene D (23.6%), 1,3,5-trimethylbenzene (18.4%), and α-pinene (50.0%) were found as the main compounds in flower, leaf, and stem oils, respectively. The cortex in stem, pedicel, and fruit is characterized by angular collenchyma cells and a distinct cambium layer. 6 compounds (quinic acid, fumaric acid, keracyanin chloride, cyanidin-3-O-glucoside, chlorogenic acid, hesperidin) were observed in samples. Leaf extract showed anticholinesterase activity. Leaf and flower extracts showed the highest % inhibition value on ABTS·+ and DPPH•. Leaf extract has the strongest antioxidant effect because it is rich in total phenolic contents. All extracts of F. tingitana were found generally effective against C. albicans. Stem extract was found effective against E. coli and flower extract was found more effective against S. enterica and C. albicans. Bacterial genotoxicity results showed that extracts did not have genotoxic activity on tester strains S. typhimurium and E. coli WP2uvrA. Thus, it revealed that extracts were genotoxic-ally safe at applied concentrations up to 3 mg/plate. [ABSTRACT FROM AUTHOR]

Objective. This study was aimed at determining the antioxidant, anti-quorum sensing, and in vitro cytotoxic activities of five wild mushroom extracts. Methods. Wild mushrooms of Auricularia auricula-judae, Termitomyces umkowaani, Trametes elegans, Trametes versicolor, and Microporus xanthopus were collected from Arabuko-Sokoke and Kakamega National Forests, in Kenya. Specimens were identified and extracted using chloroform (CHL), 70% ethanol (Eth), and hot water (HW) solvents. Antioxidant and cytotoxic activities of the extracts were determined using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and Vero cell lines, respectively, while anti-quorum sensing activities were tested against Chromobacterium violaceum. All data were compared using relevant descriptive and inferential statistics at a significance level of p ≤ 0.05. Results. A total of 35 wild mushrooms were collected, identified, and classified into 14 genera. Among screened mycochemicals, fatty acids, flavonoids, polyphenols, and saponins were detected at higher concentrations. The highest free radical scavenging activities of A. auricula-judae, T. umkowaani, T. elegans, and T. versicolor were observed in 70% Eth extract with the percentage values of 76.40 ± 0.12%, 68.40 ± 0.01%, 62.40 ± 0.07%, and 66.40 ± 0.04%, respectively, whereas the HW extract of Microporus xanthopus showed free radical scavenging activity at 65.90 ± 0.02%. None of the extracts, at the tested concentrations (up to 1000 µg/mL), had shown cytotoxic activity against the Vero cell line. The HW extract of T. umkowaani and the 70% Eth extract of T. versicolor showed a statistically significant difference in the inhibitory activity of violacein production against C. violaceum at the concentration of 200 µg/mL. Conclusions. The antioxidant activity of wild mushrooms can help to tackle the diseases caused by free radicals. The anti-quorum sensing potential of wild mushrooms could also provide future alternatives to conventional drug therapies cost-effectively. Further detailed chemistry of the bioactive compounds and their possible mechanisms of action responsible for the observed antioxidant and anti-quorum sensing activities are needed. [ABSTRACT FROM AUTHOR]

Food coatings are a promising strategy to improve the safety and shelf life of food products by inhibiting or retarding the growth of harmful microorganisms. The current study assessed the in vitro antibacterial and antioxidant characteristics of a coating based on natural ingredients, including whey protein isolate scavenge free radicals. (WPI), nanochitosan (NCH), bacterial nanocellulose (BNC), and cinnamon essential oil (CEO). The in vitro antibacterial assay of the edible coating solution was performed against four food-born pathogens, consisting Staphylococcus aureus, Listeria monocytogenes, Escherichia coli, and Salmonella Typhimurium. The antioxidant potency of the edible coating solution was evaluated by measuring its capability to The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) values of the coating decreased as the CEO concentration increased. The most significant difference in MIC and MBC was observed between the pure coating and the essential oil enriched coating group, which had the maximum essential oil concentration (1.5%). For Salmonella Typhimurium bacteria, this difference was 20% for MIC and 15% for MBC. For Escherichia coli, it was 15% for MIC and 20% for MBC. For Staphylococcus aureus, it was 20% for MIC and 20% for MBC. For Listeria monocytogenes, it was 15% for MIC and 20% for MBC. The antibacterial charachtristics of the coating were evaluated using the disc diffusion technique. The results showed that the coating exhibited considerable antibacterial efficacy against all tested pathogens. The coating also exhibited significant antioxidant activity (up to 5.7% more than the control group). These findings suggest that the coating based on WPI, NCH, BNC, and CEO has potential applications to improve the food safety. [ABSTRACT FROM AUTHOR]

Humans find several uses for plants. Not only is it good for you from a nutritional standpoint, but it has also been used to cure a wide range of illnesses. In this research, we analysed Campanula strigosa Banks & Sol. for its antioxidant and antibacterial properties. Total phenolic and flavonoid concentrations were also calculated. For this purpose, a soxhlet apparatus was used to extract ethanol and methanol from the plant's above-ground portions. The effectiveness of antioxidants was measured using Rel Assay kits. The agar dilution technique was used to test for antimicrobial activity against various bacterial and fungus species. Folin-Ciocalteu reagent was used to quantify total phenolic content. An aluminium chloride assay determined the total flavonoid concentration. Studies found that the plant extract had a TAS value of 4.974±0.259 mmol/L, a TOS value of 12.437±0.150 µmol/L, and an OSI value of 0.251±0.014. The plant extract was shown to be effective against bacterial strains at concentrations between 100 and 400 µg/mL, and against fungal strains at concentrations between 50 and 100 µg/mL. Ethanol extract also had a greater total phenolic concentration and total flavonoid content. C. strigosa was shown to have antibacterial and antioxidant properties in this study. [ABSTRACT FROM AUTHOR]

Background: Malay medical manuscripts have deciphered the medicinal value of Piper betle (sirih) enormously. In this review, an effort was made to explore the medicinal use of P. betle and correlate this information with the scientific evidence. Methods: The information regarding the use of P. betle was retrieved from the books consisting of a Malay medical manuscript with an identification number MSS 2219 from the National Library of Malaysia. PubMed, ScienceDirect and Scopus databases were used to collect information regarding the scientific evidence for the medicinal use of P. betle. This review was written following the Preferred Reporting Items for Systematic Reviews and Meta- Analyses (PRISMA) guidelines. The keywords used for searching the articles included P. betle, antimicrobial, analgaesic, haepatic and gastric. Results: MSS 2219 showed that P. betle has varied medicinal uses and based on that, it can be grouped into six categories. P. betle application method was different in different conditions. In terms of the literature search, 226 articles were found, 75 articles were extracted for detailed analysis and only 23 met the inclusion criteria. The information was related to the chemical assays, in vivo and in vitro studies. Conclusion: In summary, P. betle has the potential to treat medical conditions in various types of categories as recorded in the Malay medical manuscripts and also based on scientific publications. For clinical purposes, more information is required, such as the specific mechanism involved, the best extraction method and the best dosage for treatment. [ABSTRACT FROM AUTHOR]

The use of traditional and folklore systems of medicine has been an important part of healthcare worldwide, and polyherbal formulations, which are combinations of different herbs, are gaining recognition for their medicinal and therapeutic potential. These formulations can be optimized to have stronger therapeutic effects with lower toxicity. The aim of this study was to review research on the antimicrobial, anti-inflammatory, antioxidant and toxicological properties of polyherbal formulations around the world, with a view to promoting their use and identifying areas where further research is needed. The author analyzed 99 articles published between 2010 and 2022, using scientific search engines such as Elsevier, BioMed Central, ScienceDirect, PubMed, and Scopus, to assess the use of polyherbal formulations in different countries. This article enlists some commercial and non-commercial polyherbal formulations all around the world with India leading in the number of publications on polyherbal formulations, followed by Nigeria, and Pakistan. The various pharmacological studies conducted have shown that polyherbal medicines possess antimicrobial, anti-inflammatory, antioxidant and toxicological properties, hence, validating their traditional use. However, further clinical work is required to fully understand the therapeutic potential of polyherbal formulations. The growing interest in the therapeutic use of non-toxic conventional medicinal plants as low-cost alternatives for disease prevention and treatment has made natural products valuable tools for creating new lead compounds and scaffolds. Plants will continue to play a pivotal role in the discovery of drugs for human diseases, and the development of potent cures derived from plants would represent significant progress in the treatment of diseases. [ABSTRACT FROM AUTHOR]

Background: During coffee processing, a large volume of waste is generated. This study investigated the phenolic profile, antioxidant and antibacterial activity of coffee grounds and silverskin using different extraction methods. Results: Ultrasound‐assisted extraction (UAE), enzyme‐assisted extraction (EAE), and ultrasound‐assisted enzyme extraction (UAEE) were effective for extraction of polyphenols, with UAE being the method that promoted the highest extraction of polyphenols. The coffee ground and coffee silverskin extracts showed high antioxidant capacity for the three methods ABTS, DPPH, and ORAC (4013.36–3241.89 μmol Trolox/g; 1.82–2.06 IC50 μg/mL; and 26.60–16.20 μmol Trolox/mL, respectively). The phenolic profile demonstrated that most of the compounds in both matrices were chlorogenic acid, caffeic acid, 2,4‐DHBA, 2,5‐DHBA, and 3,4‐DHB. EAE promoted a greater release of polyphenols in the coffee ground (2676.42 μg/g), while UAEE was more effective for the coffee silverskin (2111.54 μg/g). The Principal Component Analysis grouped the samples according to the extraction method, based on their content and phenolic potential, for coffee ground and coffee silverskin. As for antibacterial activity, the most expressive result was for Gram‐positive bacteria. For both matrices, when extracted by the UAEE method, they presented the minimum inhibitory concentration to inhibit the growth of Bacillus subtilis, Bacillus cereus, and Listeria monocytogenes. Conclusion: The extraction methods used are environmentally safe alternatives, enabling the reuse of natural compounds and contributing to the circular economy, seeking to transform waste into raw material for the extraction of compounds of interest and possible subsequent application in agriculture as biofertilizers or bioherbicides. [ABSTRACT FROM AUTHOR]

Background and Aims: Due to various antioxidant and antimicrobial compounds, plants are considered valuable sources. Ferula gummosa Boiss plant is one of the most important species of the Apiaceae family and is scattered in the eastern and western regions of Iran. This study aimed to investigate the antioxidant and antimicrobial properties of aqueous and hydroalcoholic extracts of Ferula gummosa Boiss plant gum. Materials and Methods: The levels of phenolic and flavonoid compounds and the antioxidant capacity (by the iron reduction and 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging methods) were determined in this laboratory study. The antimicrobial activity of the extracts was evaluated using the disc diffusion method, the minimum inhibitory concentration (MIC) and minimum bactericidal concentration were determined for some bacteria. Data analysis was performed using a factorial experiment within a completely randomized design, and Duncan's multiple range test was used to compare the means. Results: The highest content of phenolic compounds and flavonoids in methanol extract were (53.21±2.43 mg GAE/g dw) and (38.42±1.78 mg QE/g dw), respectively. The highest percentage of free radical scavenging and iron reduction power related to the methanolic extract was 96.43±3.56% and 1.963±0.012 µg/ml, respectively. Antimicrobial activity using the disk diffusion method and the MIC of Bacillus subtilis bacteria in all three extracts showed the most sensitivity compared to other bacteria. Conclusion: The results of this study showed that the methanolic extract of the Ferula gummosa Boiss plant had antimicrobial activity, antioxidant potential, and higher phenolic and flavonoid content than the ethanolic and aqueous extracts. [ABSTRACT FROM AUTHOR]

The paper reviews herbal medicinal products used in infectious diseases of the respiratory tract. Due to the multidirectional effects of the biological action of the contained herbal active substances (anti-inflammatory, antioxidant, antimicrobial, antitussive, diuretic and others), they have the properties that alleviate the severity of symptoms, reduce their frequency and, consequently, shorten the duration of the disease, as well as reduce the risk of complications. Some of them have additional immunomodulatory properties, supporting natural immune mechanisms. [ABSTRACT FROM AUTHOR]

The article focuses on the potential health benefits of coriander, including its use in traditional remedies for gastrointestinal maladies and other historical uses such as an aphrodisiac and antibiotic. Topics discussed include the antioxidant, antimicrobial, and diabetes-modulating benefits of coriander, as well as its major constituent, linalool.

The article focuses on the potential health benefits of anise (Pimpinella anisum L.) and its essential oil. Topics discussed include its traditional uses for relief of coughs, respiratory congestion, migraines, gastrointestinal distress, and colic; treatment of skin infections; as a tranquilizer and aphrodisiac; and its antioxidant, anti-inflammatory, and antimicrobial properties.

A novel chrysin derivatives of ligand has been synthesized by the condensation of n-pentyl amine, pyrrole and substituent 3-aminonaphthalene-2-ol and its Co(II), Ni(II), Cu(II) and Zn(II) complexes have been reported. The ligands and its metal complexes have been structurally characterized using a variety of spectroscopic [UV–Vis, IR, NMR, ESR, Mass, XPRD], thermal (TGA) and other physicochemical techniques. For in vitro antibacterial activity, all the produced compounds have been evaluated. Additionally, the compounds have been used in antioxidant investigations. UV–Vis spectroscopy, Fluorescence quenching and viscosity measurements techniques were used to examine the binding affinity of complexes with DNA and Human Serum Albumin (HSA). As a result of the gathered data, it was discovered that DNA and HSA had a preference for the following complexes: Cu-L > Zn-L > Co-L > Ni-L and Ni-L > Cu-L > Zn-L > Co-L. The complexes were further tested for their in vitro anticancer activity against the cell lines (HeLa & MCF-7) and the findings obtained suggest that they demonstrate an effective anticancer activity. The metal complexes performed various biochemical assay techniques for anti-inflammatory and anti-tubercular studies. A series of chrysin derivatives of ligand and their corresponding metal(II) complexes of general formula: [M-L(OAc)] were synthesized and characterized using spectroscopic techniques. The hetero-bimetalic complexes show moderate biological activity and catalyst precursors. [ABSTRACT FROM AUTHOR]

Helichrysum arenarium (L.) Moench subsp. aucheri is a herbaceous perennial herb belonging to the Asteraceae. This plant has biological activities such as antibacterial, antiviral, anti-inflammatory, antifungal, antiproliferative, antioxidant, and antiradical. In this study, antimicrobial and antioxidant activities of methanol and ethanol extracts of aerial parts of H. arenarium subsp. aucheri were investigated. To determine the antimicrobial activity pathogenic microorganisms Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, Staphylococcus aureus, Bacillus megaterium, Candida glabrata, Candida albicans and Trichophyton sp. Antioxidant activity was determined with total antioxidant value (TAS), total oxidant value (TOS) and 2.2-diphenyl-1-picrylhydrazil (DPPH) radical scavenging capacity. In the results obtained, it was determined that the methanol extract had an antimicrobial effect (9.3 mm) only against C. albicans. It was found that the ethanol extract showed antimicrobial activity at different rates (8.8-20.4 mm) against S. aureus, B. megaterium, C. glabrata, C. albicans and Trichophyton sp. The TAS value of the methanol extract was 3.00 mmol, and the TAS value of the ethanol extract was 3.15 mmol. The TOS value of the methanol extract of the same species was calculated as 6.81 µmol, and the TOS value of the ethanol extract was calculated as 12.64 µmol. The DPPH radical scavenging effects of extracts of goldengrass was found to increase depend on concentrations. [ABSTRACT FROM AUTHOR]

HIV mutations occur frequently despite the substantial success of combination antiretroviral therapy, which significantly impairs HIV progression. Failure to develop specific vaccines, the occurrence of drug-resistant strains, and the high incidence of adverse effects due to combination antiviral therapy regimens call for novel and safer antivirals. Natural products are an important source of new anti-infective agents. For instance, curcumin inhibits HIV and inflammation in cell culture assays. Curcumin, the principal constituent of the dried rhizomes of Curcuma longa L. (turmeric), is known as a strong anti-oxidant and anti-inflammatory agent with different pharmacological effects. This work aims to assess curcumin's inhibitory effects on HIV in vitro and to explore the underpinning mechanism, focusing on CCR5 and the transcription factor forkhead box protein P3 (FOXP3). First, curcumin and the RT inhibitor zidovudine (AZT) were evaluated for their inhibitory properties. HIV-1 pseudovirus infectivity was determined by green fluorescence and luciferase activity measurements in HEK293T cells. AZT was used as a positive control that inhibited HIV-1 pseudoviruses dose-dependently, with IC50 values in the nanomolar range. Then, a molecular docking analysis was carried out to assess the binding affinities of curcumin for CCR5 and HIV-1 RNase H/RT. The anti-HIV activity assay showed that curcumin inhibited HIV-1 infection, and the molecular docking analysis revealed equilibrium dissociation constants of − 9.8 kcal/mol and − 9.3 kcal/mol between curcumin and CCR5 and HIV-1 RNase H/RT, respectively. To examine curcumin's anti-HIV effect and its mechanism in vitro, cell cytotoxicity, transcriptome sequencing, and CCR5 and FOXP3 amounts were assessed at different concentrations of curcumin. In addition, human CCR5 promoter deletion constructs and the FOXP3 expression plasmid pRP–FOXP3 (with an EGFP tag) were generated. Whether FOXP3 DNA binding to the CCR5 promoter was blunted by curcumin was examined using transfection assays employing truncated CCR5 gene promoter constructs, a luciferase reporter assay, and a chromatin immunoprecipitation (ChIP) assay. Furthermore, micromolar concentrations of curcumin inactivated the nuclear transcription factor FOXP3, which resulted in decreased expression of CCR5 in Jurkat cells. Moreover, curcumin inhibited PI3K-AKT activation and its downstream target FOXP3. These findings provide mechanistic evidence encouraging further assessment of curcumin as a dietary agent used to reduce the virulence of CCR5-tropic HIV-1. Curcumin-mediated FOXP3 degradation was also reflected in its functions, namely, CCR5 promoter transactivation and HIV-1 virion production. Furthermore, curcumin inhibition of CCR5 and HIV-1 might constitute a potential therapeutic strategy for reducing HIV progression. [ABSTRACT FROM AUTHOR]

For various reasons, the balance between oxidative stress and the antioxidative defence system is disturbed during general anesthesia. On the other hand, thanks to their antioxidant effect, certain anesthetics have been suggested to protect from oxidative stress caused due to pathological states. In this study, potential antimicrobial and antioxidative activities of commonly used anesthetic drugs were evaluated to reveal possible effects after surgery. The antimicrobial activities of commercially purchased anesthetic drugs diluted with sterile physiological saline were investigated according to the Kirby-Bauer disc diffusion method. Furthermore, minimum inhibitory concentration and minimum bactericidal concentrations were determined. Antioxidative potentials of the drugs were screened according to 2,2 diphenyl-1-picrylhydrazyl (DPPH) and hydroxyl (OH?) radical scavenging assays. One of the tested drugs, Ketalar, containing ketamine hydrochloride was found to have an inhibition effect on all tested pathogenic microorganisms. At the same time, Mivacron and Pental Sodium formed the most significant inhibition zones on Micrococcus luteus. As expected, Propofol had no antimicrobial activity on most tested organisms. However, its antioxidant activity was the highest among the other drugs. Calculated SC50 values for DPPH-free and hydroxyl radical scavenging activities of Ultiva, Blok-L, and Zolamid were very close to Propofol. It can be concluded that using these drugs for anesthesia may suppress the risk of contamination and oxidative stress that may occur during use in many cases. [ABSTRACT FROM AUTHOR]

Within the last few decades, marine organisms have received extensive research attention from a number of scientific organizations due to their potential biological activities including antioxidant and antimicrobial properties. Among the marine species, brown seaweeds have significant role in the synthesis of a variety of bioactive chemicals. The current work was mainly focused on the screening of antimicrobial activity and antioxidant properties as well as the characterization of phenolics and flavonoids in the seaweed methanolic extract (SME) for the three brown macroalgae Cystoseria myrica, Sargassum polycystum and Turbinaria triquitra. The antimicrobial properties were tested against two gram-positive and two gram-negative bacteria as well as Candida albicans as a unicellular fungus. The obtained results revealed that all seaweed extracts showed a positive antimicrobial activity against all tested bacteria and yeast. The largest inhibition zones were recorded by the T. triquetra against Staphylococcus aureus and Salmonella typhimurium (2.2 cm) for both, although it had the least inhibitory effect against Candida albicans. Significantly, S. polycystum recorded the highest phenolics, flavonoids and carotenoids content (1392, 56 and 8 µg /ml) respectively which led to the highest antioxidant capacity. On the other hand, the most effective algal extract against yeast was C. myrica. The most dominant detected phenolic compounds in all (SME) were quercetin and apigenin which are known for their high antioxidant activity. In conclusion, all of the tested seaweed extracts exhibited considerable antimicrobial and antioxidant activities. [ABSTRACT FROM AUTHOR]

Background. Afzelia africana is a plant species with well-documented ethnobotanical and medicinal properties. The plant is reported to have various secondary metabolites and had been applied for the treatment of various diseased conditions. Objectives. The study objectives include fractionation, isolation, purification, and characterization of eriodictyol from the bark of A. africana, and the determination of its antimicrobial and antioxidant activities. Methodology. The series of methodologies that were employed include fractionations and purification (column chromatography), characterization (HPLC, LC-MS, IR, 1H, 13C, DEPT-135, HSQC, and HMBC), antimicrobial assays (microbroth dilution and checkerboard assay), and antioxidant activities assays (ABTS and DPPH scavenging capacity). Results. The study reports the identification and characterization of eriodictyol from the bark of A. africana which exhibited potent antioxidant activities against ABTS and DPPH radicals with scavenging capacities (SC50) of 2.14 ± 0.05 and 2.51 ± 0.06 µg/mL, respectively. The compound exhibited its antimicrobial activity by reporting good bacteriostatic activities (MBC/MIC > 4) against Staphylococcus aureus (SA), methicillin-resistant Staphylococcus aureus (MRSA), and fluconazole-resistant Candida albicans (CA2). Moreover, a broad spectrum of bactericidal effects (MBC/MIC ≤ 4) was reported against Streptococcus mutans (SM), Escherichia coli (EC), Bacillus subtilis (BS), Klebsiella pneumonia (KP), Pseudomonas aeruginosa (PA), Salmonella typhi (ST), and standard Candida albicans (CA1). The compound further exhibited synergistic effects against EC, KP, ST, and MRSA; ST; and CA2 when combined with ciprofloxacin, tetracycline, and nystatin, respectively. However, antagonistic effects were observed against PA and CA1 when combined with ciprofloxacin and ketoconazole, respectively. Conclusion. The study reports for the first time the identification of eriodictyol from the bark of A. africana which exhibited significant antioxidant and antimicrobial properties. [ABSTRACT FROM AUTHOR]

Aim of this study is to present microbiological quality, and antimicrobial and antioxidant activity of the mangosteen fruit in two forms: freeze-dried powder and fresh fruit. During the identification of the mangosteen microbiota using a MALDI-TOF MS Biotyper mass spectrophotometer, the presence of B. cereus and Saccharomyces spp. has been detected. The best antimicrobial activity was achieved against Micrococcus spp. Mangosteen fruit (Garcina mangostana) is characterized by a high content of polyphenols at the following levels: fresh fruit 3.22 ±0.68 mg GAE.g−1; powder form 2.17 ±0.64 mg GAE.g−1. Mangosteen shows a high antioxidant capacity of the fruit in the two forms presented in the work. It was 21.18% (fresh fruit) and 14.46% (freeze-dried fruit). Mangosteen also shows an antibacterial activity in relation to the strains of bacteria tested in our work. [ABSTRACT FROM AUTHOR]

This study aimed to evaluate the phytochemical components, antimicrobial activity, and antioxidant activity of 80% ethanol extract of Scorzonera tomentosa, an endemic species. The chemical constituents of the ethanolic extract of S. tomentosa was primarily characterized by gas-chromatography-mass spectrometry analysis (GC-MS), ten components were identified. The major component was found as 2-pentanamine (35.68%). When the antioxidant capacity of S. tomentosa was examined, 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging activities were determined to be quite high compared to the reference drug (IC50 values; DPPH: 517.0 ± 1.86 µg mL-1; ABTS: 244.8 ± 0.94 µg mL-1; reference drug: 1.313 ± 0.24 µg mL-1). In addition, according to total phenol content and total flavonoid content analyses, it was determined that the plant is richer in flavonoids. The antimicrobial activity of this species is not at an effective level. More extensive studies with S. tomentosa may allow the plant to be used as a natural antioxidant. [ABSTRACT FROM AUTHOR]

Background and Aims: Nowadays, due to the toxic effects of synthetic compounds, we are witnessing a marked increase in the use of natural types, such as plant extracts. The present study aimed to assess the total phenolic and flavonoid content and in vitro comparative study of the biological activities of methanolic and aqueous extracts of Cuminum cyminum, Carum carvi, and Nigella sativa. Materials and Methods: This study measured the total phenolic and flavonoid contents. Thereafter, antioxidant capacity was measured by the DPPH free radical scavenging and reducing power methods. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were evaluated using the broth microdilution method. Results: Based on the results, total phenol and flavonoid contents varied from 6.1 to 37.7 mg GAE/g dw and 6.2 to 56.2 mg QE /g dw in the studied species. The species showed high antioxidant capacities. The extracts from the studied species exhibited significant antioxidant activity, with the highest percentage of DPPH free radical inhibition being attributed to the methanolic extract of Carum carvi at a concentration of 400 μg/mL (74.67%) and the highest iron-reducing capacity being attributed to the methanolic extract of Carum carvi at a concentration of 1000 μg/mL (54.0%). The results also pointed out that the methanolic extracts of all three plants, Cuminum cyminum, Carum carvi, and Nigella sativa, have antibacterial activity against four bacterial species: Escherichia coli (PTCC1399), clinical Salmonella typhimurium, Bacillus cereus (PTCC1015), and Staphylococcus aureus (ATCC25923). The lowest inhibitory concentration (25.6 mg/ml) and the lowest bactericidal concentration (5.12 mg/ml) were observed for the methanolic extract of Nigella sativa against E. coli, while among the aqueous extracts, only the aqueous extracts of Cuminum cyminum and Nigella sativa exhibited antibacterial effects against the four studied species. Conclusion: As evidenced by the results of this study, methanolic extract of three Cuminum cyminum, Carum carvi, and Nigella sativa had significant antioxidant and antibacterial activity against pathogenic bacteria. Therefore, these extracts can be considered natural herbal products for the management of bacterial infections. [ABSTRACT FROM AUTHOR]