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Istituto di scienza dell'alimentazione

Torna all'elenco Contributi in rivista anno 2013

Contributo in rivista

Tipo: Articolo in rivista

Titolo: Temperature and respiration affect the growth and stress resistance of Lactobacillus plantarum C17

Anno di pubblicazione: 2013

Formato: Elettronico Cartaceo

Autori: Zotta, Teresa; Guidone, Angela; Ianniello, Rocco Gerardo; Parente, Eugenio; Ricciardi, Annamaria

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

Autori CNR:

  • EUGENIO PARENTE
  • TERESA ZOTTA

Lingua: inglese

Abstract: Aims: The aim of the study is to gain further insight on the respiratory behaviour of Lactobacillus plantarum and its consequences on stress tolerance. Methods and Results: We investigated the effect of temperature and respiration on the growth and stress (heat, oxidative, freezing, freeze-drying) response of Lact. plantarum C17 during batch cultivations. Temperature as well as respiration clearly affected the physiological state of cells, and generally, cultures grown under respiratory conditions exhibited improved tolerance of some stresses (heat, oxidative, freezing) compared to those obtained in anaerobiosis. Our results revealed that the activities in cell-free extracts of the main enzymes related to aerobic metabolism, POX (pyruvate oxidase) and NPR (NADH peroxidase), were significantly affected by temperature. POX was completely inhibited at 37C, while the activity of NPR slightly increased at 25C, indicating that in Lact. plantarum, the temperature of growth may be involved in the activation and modulation of aerobic/respiratory metabolism. Conclusions: We confirmed that respiration confers robustness to Lact. plantarum cells, allowing a greater stress tolerance and advantages in the production of starter and probiotic cultures. Significance and Impact of the Study: This is the first study on respiratory metabolism on a strain other than the model strains WCFS1; novel information on the role of temperature in the modulation of aerobic/respiratory metabolism in Lact. plantarum is presented. 2013 The Society for Applied Microbiology.

Lingua abstract: inglese

Pagine da: 848

Pagine a: 858

Rivista:

Journal of applied microbiology Blackwell Science.
Paese di pubblicazione: Regno Unito
Lingua: inglese
ISSN: 1364-5072

Numero volume: 115

Numero fascicolo: 3

DOI: 10.1111/jam.12285

Referee: S: Internazionale

Stato della pubblicazione: Published version

Indicizzato da: Scopus [2-s2.0-84881660481]

Parole chiave:

  • Aerobic enzymes
  • Lactobacillus plantarum
  • Respiration
  • Stress response

URL: http://www.scopus.com/record/display.url?eid=2-s2.0-84881660481&origin=inward

Strutture CNR:

 
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