Home |  English version |  Mappa |  Commenti |  Sondaggio |  Staff |  Contattaci Cerca nel sito  
Istituto di scienza dell'alimentazione

Torna all'elenco Contributi in rivista anno 2018

Contributo in rivista

Tipo: Articolo in rivista

Titolo: Adaptation to aerobic environment of Lactobacillus johnsonii/gasseri strains

Anno di pubblicazione: 2018

Formato: Elettronico

Autori: Maresca D.; Zotta T.; Mauriello G.

Affiliazioni autori: Department of Agricultural Sciences, University of Naples Federico II, Portici, , Italy; Institute of Food Science, National Research Council, Avellino, , Italy

Autori CNR:

  • TERESA ZOTTA

Lingua: inglese

Abstract: Oxygen is considered one of the main factors affecting probiotic bacteria survival due to the induction of oxidative damages caused by the action of reactive oxygen species (ROS). It has been shown that oxidative stress resistance in lactic acid bacteria is strongly dependent on the type of cell metabolism. Shift from fermentative to respiratory metabolism (through the addition of heme and menaquinone and in presence of oxygen) was associated to increase in biomass, long-term survival, and production of antioxidant enzymes. The aim of this work was to investigate the effect of aerobic (presence of oxygen) and respiratory (presence of oxygen, heme, and menaquinone) cultivation on the growth kinetic, catalase production, oxygen uptake, and oxidative stress response of Lactobacillus johnsonii/gasseri strains previously isolated from infant feces. Seven strains showed to consume oxygen under aerobic and respiratory conditions. The strain AL5 showed a catalase activity in both growth conditions, while AL3 showed this activity only in respiratory condition. Respiratory condition improved their tolerance to oxidative compounds (hydrogen peroxide and ROS generators) and further they showed promising probiotic features. The exploration of respiratory competent phenotypes with probiotic features may be extremely useful for the development of competitive starter or probiotic cultures.

Lingua abstract: inglese

Pagine da: article 157

Rivista:

Frontiers in microbiology Frontiers Research Foundation,
Paese di pubblicazione: Svizzera
Lingua: inglese
ISSN: 1664-302X

Numero volume: 9

DOI: 10.3389/fmicb.2018.00157

Referee: Sė: Internazionale

Stato della pubblicazione: Published version

Indicizzato da: Scopus [2-s2.0-85041831845]

Parole chiave:

  • oxidative stress response
  • probiotic bacteria
  • antimicrobial activity
  • lactic acid bacteria
  • respiration

URL: http://www.scopus.com/record/display.url?eid=2-s2.0-85041831845&origin=inward

Strutture CNR:

 
Torna indietro Richiedi modifiche Invia per email Stampa
Home Il CNR  |  I servizi News |   Eventi | Istituti |  Focus