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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: Ability of synbiotic encapsulated Saccharomyces cerevisiae boulardii to grow in berry juice and to survive under simulated gastrointestinal conditions

Anno di pubblicazione: 2014

Autori: Fratianni, Florinda; Cardinale, Federica; Russo, Ida; Iuliano, Carmine; Tremonte, Patrizio; Coppola, Raffaele; Nazzaro, Filomena

Affiliazioni autori: Consiglio Nazionale delle Ricerche (CNR); University of Molise

Autori CNR:

  • FEDERICA CARDINALE
  • RAFFAELE COPPOLA
  • FLORINDA FRATIANNI
  • FILOMENA NAZZARO

Lingua: inglese

Abstract: The probiotic yeast, Saccharomyces cerevisiae boulardii, was microencapsulated in a mixture of alginate-inulin-xanthan gum, and its ability to grow in berry juice and survive 4 weeks of storage at 4 degrees C was determined. Exposure of the yeast in these forms to artificial gastrointestinal conditions was also assessed. Encapsulation significantly enhanced cell viability after fermentation and storage compared with the free yeast (7.59 log(10) colony forming units/ml versus 6.98 log(10) colony forming units/ml, respectively) and protected it from exposure to a simulated gastrointestinal transit after 4 weeks of storage. Conversely, a dramatic loss of viability was exhibited by free yeast after 4 weeks of storage, and viability values closer to zero (0.23 log(10) cfu/ml) were found after the simulated gastrointestinal treatment. Microcapsules were capable of absorbing a certain amount of polyphenols and anthocyanins. This work, based on use of microencapsulated probiotic yeasts, might represent the starting point for the development of new functional foods or functional ingredients. Microcapsules were capable to absorb, from berry juice, a certain amount of anthocyanins which, maintaining their native form after the in vitro gastrointestinal transit, might in vivo therein be transformed into other, simpler molecules, with beneficial effect on microflora and human health too.

Lingua abstract: inglese

Pagine da: 299

Pagine a: 305

Pagine totali: 7

Rivista:

Journal of microencapsulation Informa Health care
Paese di pubblicazione: Regno Unito
Lingua: inglese
ISSN: 0265-2048

Numero volume: 31

Numero fascicolo: 3

DOI: 10.3109/02652048.2013.871361

Referee: Sì: Internazionale

Indicizzato da: ISI Web of Science (WOS) [000334739700013]

Parole chiave:

  • Microencapsulation
  • polyphenols
  • prebiotic
  • probiotic
  • Saccharomyces boulardii

Strutture CNR:

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