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293 results on '"Serio, Annalisa"'

64. Thymus vulgaris L. essential oils from Emilia Romagna Apennines (Italy): phytochemical composition and antimicrobial activity on food-borne pathogens.

Author

Tardugno, Roberta, Serio, Annalisa, Purgatorio, Chiara, Savini, Vincenzo, Paparella, Antonello, and Benvenuti, Stefania

Subjects
ESSENTIAL oils, ANTI-infective agents, AROMATIC plants, PLASTIC mulching, LISTERIA monocytogenes, LEMON
Abstract

Between Modena and Bologna Apennines (Italy), several agricultural farms have recently been dedicated to the cultivation of autochthonous aromatic plants as primary cultivation or to complement other crops. In this study, the chemical composition of Thymus vulgaris L. essential oils (EOs) from this region was evaluated by means of gas-chromatographic analysis. Three different mulching techniques, in particular, soil coverage with grass, mulch with plastic film and with straw were investigated. The results highlighted that mulching techniques influenced the composition of the analysed EOs. All the EOs exerted good antimicrobial activity against clinical and food strains of the pathogen Listeria monocytogenes, with differences related to the composition. The EO obtained from plants covered with grass showed the best results, having MIC ≤ 2.5 µL/mL, and being able to inhibit also antibiotic-resistant strains, thus confirming that soil coverage with grass influences the composition and also the biological activity of Thymus vulgaris EO. [ABSTRACT FROM AUTHOR]

Published
2022
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65. In vitro antioxidant and antimicrobial activity of Cannabis sativa L. cv ʻFutura 75ʼ essential oil.

Author

Pellegrini, Marika, Palmieri, Sara, Ricci, Antonella, Serio, Annalisa, Paparella, Antonello, and Lo Sterzo, Claudio

Subjects
CANNABIS (Genus), ESSENTIAL oils, ANTIBACTERIAL agents, CARVACROL, OXIDANT status, BACTERIAL growth, SOLANUM, LEMON
Abstract

In the present work, Cannabis sativa L. cv Futura 75 inflorescences, cultivated in the Abruzzo territory, were characterized for their volatile fraction through SPME-GC-MS. In addition, the essential oil extracted from these inflorescences was investigated for the antioxidant potentialities and for the terpenic profile. The antibacterial activity of hemp essential oil (HEO) against some pathogenic and spoilage microorganisms isolated from food was also evaluated by determining the minimal inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC). The results showed significant antioxidant capacity (DPPH: 63.38 ± 0.08 mg TE/g HEO; FRAP: 438.52 ± 6.92 mg TE/g HEO) alongside good antibacterial activity against Gram-positive bacteria such as S. aureus and L. monocytogenes (MIC 1.25-5 µL/mL). The results obtained suggest that hemp essential oil can inhibit or reduce bacterial growth, also exerting antioxidant activity, and therefore it can find an advantageous application in the food processing field. [ABSTRACT FROM AUTHOR]

Published
2021
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73. Lavandula x intermedia and Lavandula angustifolia essential oils: phytochemical composition and antimicrobial activity against foodborne pathogens

Author

Tardugno, Roberta, primary, Serio, Annalisa, additional, Pellati, Federica, additional, D’Amato, Serena, additional, Chaves López, Clemencia, additional, Bellardi, Maria Grazia, additional, Di Vito, Maura, additional, Savini, Vincenzo, additional, Paparella, Antonello, additional, and Benvenuti, Stefania, additional

Published
2018
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74. Potential ofBorojoa patinoiCuatrecasas water extract to inhibit nosocomial antibiotic resistant bacteria and cancer cell proliferationin vitro

Author

Chaves-López, Clemencia, primary, Usai, Donatella, additional, Donadu, Matthew Gavino, additional, Serio, Annalisa, additional, González-Mina, Robert Tulio, additional, Simeoni, Maria Chiara, additional, Molicotti, Paola, additional, Zanetti, Stefania, additional, Pinna, Antonio, additional, and Paparella, Antonello, additional

Published
2018
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76. Lavandula x intermedia and Lavandula angustifolia essential oils: phytochemical composition and antimicrobial activity against foodborne pathogens.

Author

Tardugno, Roberta, Serio, Annalisa, Pellati, Federica, D'Amato, Serena, Chaves López, Clemencia, Bellardi, Maria Grazia, Di Vito, Maura, Savini, Vincenzo, Paparella, Antonello, and Benvenuti, Stefania

Subjects
ESSENTIAL oils, FOOD pathogens, LAVENDERS, DECONTAMINATION of food, SALMONELLA enterica, LISTERIA monocytogenes
Abstract

Four cultivars (cv) of Lavandula x intermedia ('Abrialis', 'Alba', 'Rinaldi Ceroni' (R.C.) and 'Sumiens') were cultivated in Italy and their essential oils (EOs) were distilled from Alfalfa Mosaic Virus-free plants. These EOs and one from L. angustifolia Miller were chemically characterised by GC-MS and GC-FID. Antimicrobial activity was evaluated against Listeria monocytogenes (24 strains) and Salmonella enterica (10 food strains). Minimal inhibitory concentrations (MIC) ≥ 10.0 μL/mL inhibited Salmonella (cv 'R.C.' was the most active); MIC of 0.3 μL/mL for cv 'Abrialis' and 'R.C.' inhibited L. monocytogenes, revealing noticeable activity, especially on clinical strains. This activity appears related to EOs composition. Particularly cv 'Abrialis' and 'R.C.' showing the highest antimicrobial activity, were rich in the specific constituents: linalool (38.17 and 61.98%), camphor (8.97 and 10.30%), 1,8-cineole (6.89 and 8.11%, respectively). These EOs could find potential applications in food biopreservation and in surface decontamination, even in hospitals, and deserve deeper investigations. [ABSTRACT FROM AUTHOR]

Published
2019
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84. Liofilchem® O.A. Listeria agar and direct CAMP test provided sooner Listeria monocytogenes identification from neonatal bacteremia

Author

Savini, Vincenzo, Marrollo, Roberta, Serio, Annalisa, Paparella, Antonello, Argentieri, Angela Valentina, D'Antonio, Marianna, Coclite, Eleonora, Fusilli, Paola, and Fazii, Paolo

Subjects
Bacteriological Techniques, Histology, Time Factors, Medicine (all), Infant, Newborn, Bacteremia, Newborn, Brief Communication, CAMP test, Listeria monocytogenes, Agar, Neonate, Early Diagnosis, Chromogenic Compounds, Pregnancy, 2734, Humans, Listeriosis
Abstract

Listeria monocytogenes infection in pregnant women and newborns is a cause for serious concern, and invasive disease outcome strongly depends on prompt antibiotic therapy. To provide sooner identification from neonatal bacteremia we performed a CAMP test directly on positive blood aliquots and inoculated the Liofilchem(®) O.A. Listeria chromogenic agar as well, thus providing a 24-h turn-around time for response.

Published
2014

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