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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: Aeration and supplementation with heme and menaquinone affect survival to stresses and antioxidant capability of Lactobacillus casei strains

Anno di pubblicazione: 2015

Formato: Elettronico

Autori: Ianniello, Rocco Gerardo; Ricciardi, Annamaria; Parente, Eugenio; Tramutola, Antonella; Reale, Anna; Zotta, Teresa

Affiliazioni autori: Universita degli Studi della Basilicata; Istituto di Scienze dell'Alimentazione

Autori CNR:

  • EUGENIO PARENTE
  • ANNA REALE
  • TERESA ZOTTA

Lingua: inglese

Abstract: he strains Lactobacillus casei N87, N811, N2014 (isolated from infant faeces) and CI4368 (from cheese) were used to evaluate the effect of aeration and supplementation with heme and menaquinone (promoting respiration) on the antioxidant capability and on the survival to simulated gastrointestinal transit and oxidative stresses. The probiotic Lactobacillus rhamnosus GG and L. casei Shirota were used for comparative purposes.L.casei N87 and N811 showed potential respiratory traits (increases in biomass and pH, oxygen tolerance and consumption, and production of antioxidant enzymes), while L.rhamnosus GG and L.casei Shirota were unable to activate aerobic pathways.Contrarily to probiotic strains, the four L.casei have the capability to produce catalase in both anaerobic and aerobic conditions, contributing to the expression of highly H2O2-tolerant phenotypes. Oxygen and heme/menaquinone supplementation, generally, improved tolerance of oxidative stresses and degradation of free-radicals, but significantly impaired the survival to simulated gastric juice.This study highlighted the greater robustness of respiration-competent L.casei strains, compared to L.rhamnosus GG and L.casei Shirota. The capability to reduce H2O2 and free-radicals may be exploited in food (prevention of oxidation in fermented foods) and human health (removal of toxic compounds; potential implication in the reduction of gastrointestinal and degenerative diseases) applications.

Lingua abstract: inglese

Pagine da: 817

Pagine a: 824

Rivista:

Lebensmittel-Wissenschaft + Technologie Elsevier.
Paese di pubblicazione: Paesi Bassi
Lingua: inglese
ISSN: 0023-6438

Numero volume: 60

Numero fascicolo: 2

DOI: 10.1016/j.lwt.2014.10.020

Referee: Sė: Internazionale

Stato della pubblicazione: Published version

Indicizzato da: Scopus [2-s2.0-84922287111]

Parole chiave:

  • Aerobic growth
  • Antioxidant capability
  • Gastrointestinal transit
  • Lactobacillus casei
  • Oxidative stress

URL: http://www.scopus.com/record/display.url?eid=2-s2.0-84922287111&origin=inward

Strutture CNR:

 
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