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Istituto di scienza dell'alimentazione

Torna all'elenco Contributi in rivista anno 2014

Contributo in rivista

Tipo: Articolo in rivista

Titolo: Variation of Polyphenols, Anthocyanins and Antioxidant Power in the Strawberry Grape (Vitis labrusca) after Simulated Gastro-Intestinal Transit and Evaluation of in Vitro Antimicrobial Activity

Anno di pubblicazione: 2014

Autori: Tiziana Granese, Federica Cardinale, Autilia Cozzolino, Selenia Pepe, Maria Neve Ombra, Filomena Nazzaro, Raffaele Coppola, Florinda Fratianni

Affiliazioni autori: ISA CNR

Autori CNR:

  • FEDERICA CARDINALE
  • RAFFAELE COPPOLA
  • AUTILIA COZZOLINO
  • FLORINDA FRATIANNI
  • TIZIANA GRANESE
  • FILOMENA NAZZARO
  • MARIA NEVE OMBRA

Lingua: inglese

Abstract: The influence of a simulated digestive process on some biochemical and biological aspects of strawberry grape (Vitis labrusca) was investigated. The amount of total polyphenols and anthocyanins as well as the antioxidant power were evaluated. Results evidenced that the simulated gastrointestinal transit caused a decrease of the polyphenols content and total anthocyanins; these last, however, were more resistant than polyphenols, decreasing only of 50% respect to the initial value (31.50 ?g/ml of extract). The extract exhibited an excellent antioxidant power (EC50 3.8 mg/ml), which decreased of about four times after the simulated gastrointestinal transit. The antimicrobial activity of the extract, evaluated against three Escherichia coli, Pseudomonas aeruginosa and Bacillus cereus pathogen strains was enhanced by the simulated digestion, with an increase of the inhibition halo.

Lingua abstract: inglese

Rivista:

Food and nutrition sciences Scientific Research Publishing
Paese di pubblicazione: Stati Uniti d'America
Lingua: inglese
ISSN: 2157-9458

Numero volume: 5

Numero fascicolo: 1

Referee: Sì: Internazionale

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