期刊
FOOD RESEARCH INTERNATIONAL
卷 42, 期 5-6, 页码 695-699出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.foodres.2009.02.007
关键词
Exopolysaccharide (EPS); Bacillus coagulans RK-02; Growth kinetics; Compositional analyses; Emulsifying activity
资金
- UGC, Govt. of India
- CSIR, Govt. of India [37(1230)/05/EMR-11]
An exopolysaccharide (EPS) was isolated from Bacillus coagulans RK-02. Time course accumulation of EPS was studied with respect to biomass growth. The probiotic bacterium produces an EPS during exponential and stationary growth phases. Growth kinetics of the producer organism was characterized. The probiotic bacterium exhibited high affinity for the growth limiting substrate and hence grows at a higher specific growth rate. Based on HPLC and FTIR analyses, the EPS was found to be heteropolymer composed of galactose, mannose, fucose, glucose and glucosamine. The EPS showed significant emulsifying activities in different vegetable oils/hydrocarbon substrates. To the best of our knowledge, this is the first report on a bacterial EPS with fucose as a constituent sugar and also the first report on an EPS from B. coagulans. (c) 2009 Elsevier Ltd. All rights reserved.
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