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Istituto di scienza dell'alimentazione

Torna all'elenco Contributi in rivista anno 2015

Contributo in rivista

Tipo: Articolo in rivista

Titolo: A survey of non-starter lactic acid bacteria in traditional cheeses: Culture dependent identification and survival to simulated gastrointestinal transit

Anno di pubblicazione: 2015

Formato: Elettronico

Autori: Ricciardi, Annamaria; Guidone, Angela; Ianniello, Rocco Gerardo; Cioffi, Silvia; Aponte, Maria; Pavlidis, Dimitrios E.; Tsakalidou, E.; Zotta, Teresa; Parente, Eugenio

Affiliazioni autori: Universita degli Studi della Basilicata; Istituto di Scienze dell'Alimentazione; Universita degli Studi di Napoli Federico II; Geoponiko Panepistimion Athinon

Autori CNR:

  • EUGENIO PARENTE
  • TERESA ZOTTA

Lingua: inglese

Abstract: Cultivable NSLAB in traditional Pasta filata and ewes' milk cheeses were studied by both PCR-DGGE of cells from Rogosa agar and by isolation and molecular identification after a simulated gastric juice (SGJ) treatment of the cheese. Two to six species were retrieved from each sample. The majority of isolates were identified as Lactobacillus paracasei, Lactobacillus fermentum, Lactobacillus rhamnosus, Enterococcus or Pediococcus. Bile tolerance and bile salt hydrolase (BSH) activity were tested on 88 strains: 64% were able to grow with >=0.15% bile and 40% were BSH positive. The effect of simulated digestion was tested on 15 strains. Inactivation ranged from 0.15 to 2.93log cycles; most of the lethality was associated with pancreatic juice treatment. Although SGJ treatment alone may not provide a correct estimate of tolerance to gastrointestinal transit, it allowed selection of strains with a high tolerance to gastric juice, which may be tested as probiotic candidates.

Lingua abstract: inglese

Pagine da: 42

Pagine a: 50

Rivista:

International dairy journal Elsevier Applied Science.
Paese di pubblicazione: Regno Unito
Lingua: inglese
ISSN: 0958-6946

Numero volume: 43

DOI: 10.1016/j.idairyj.2014.11.006

Referee: Sė: Internazionale

Stato della pubblicazione: Published version

Indicizzato da: Scopus [2-s2.0-84920736140]

Parole chiave:

  • Ewe's milk cheese
  • Non starter lactic acid bacteria
  • Pasta filata cheese
  • Simulated gastric transit

URL: http://www.scopus.com/record/display.url?eid=2-s2.0-84920736140&origin=inward

Strutture CNR:

 
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