Functional properties of  Lactobacillus acidophilus  metabolites | Zendy

Brzozowski Bartosz | Zendy; Bednarski Włodzimierz | Zendy; Dziuba Bartłomiej | Zendy

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Functional properties of Lactobacillus acidophilus metabolites

Author(s) -

Brzozowski Bartosz,

Bednarski Włodzimierz,

Dziuba Bartłomiej

Publication year - 2009

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.3749

Subject(s) - lactobacillus acidophilus , molecular mass , chemistry , polysaccharide , biochemistry , galactose , glucosamine , strain (injury) , prolyl endopeptidase , escherichia coli , bacteria , food science , biology , enzyme , probiotic , genetics , anatomy , gene

BACKGROUND: This study addressed the characteristics of metabolites synthesized by Lactobacillus acidophilus 5e2, with particular attention paid to exopolysaccharides, biosurfactants, proline peptidases and antibacterial compounds. RESULTS: The strain Lb. acidophilus 5e2 synthesizes low‐molecular‐mass polysaccharides (340 kDa) constituted by glucose, galactose and glucosamine at a ratio of 3.3:2.8:1.0, as well as biosurfactants with a molecular mass of 32 kDa built from a protein fraction, a polysaccharide fraction and phosphate groups. It additionally synthesizes extra‐ and intracellular proline peptidases, including prolyl endopeptidase and thermostable low‐molecular‐mass (<3.5 kDa) compounds with antimicrobiological activity against Escherichia coli strains. CONCLUSION: The strain Lb. acidophilus 5e2 may be applied to the production of functional food. Copyright © 2009 Society of Chemical Industry

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