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Survival of bifidobacteria in the presence of bile salt
Author(s) -
Ibrahim Salam A,
Bezkorovainy Anatoly
Publication year - 1993
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740620407
Subject(s) - salt (chemistry) , bifidobacterium , food science , biology , chemistry , fermentation , lactobacillus
The ability of Bifidobacterium species to survive in the presence of sodium glycocholate, at concentrations ranging from 0 to 3 g liter −1 , was tested. Bacterial growth was monitored by measuring the optical density for up to 48 h. All the Bifidobacterium strains tested showed growth limitation in the presence of sodium glycocholate. However, after a series of propagations in fresh trypticase‐peptone‐yeast extract medium devoid of bile salt all bacterial strains retained their activity. It was concluded that Bifidobacterium species are able to survive physiological and higher bile salt levels and that bifidobacteria can be considered for use as dietary adjuncts.