Screening of Exopolysaccharide (EPS)-Producing Lactobacillus plantarum and Bioactivity of the EPS

doi:10.7506/spkx1002-6630-201613022

Abstract

Abstract:

The present study describes the screening of lactic acid bacterial (LAB) strains with high exopolysaccharide
(EPS)-producing ability by observing whether they could form sticky colonies. One strain named AR307 was finally
obtained and identified as Lactobacillus plantarum. In order to enhance EPS yield, the fermentation conditions for producing
EPS by Lactobacillus plantarum AR307 were optimized. The yield of EPS produced by AR307 reached up to 389 mg/L
after 20 h fermentation at 32 ℃. In vitro assay showed that the EPS had good inhibitory activity against colon cancer HT-29
cells and possessed an antidiabetic effect.

Key words: Lactobacillus plantarum, fermentation conditions, exopolysaccharide (EPS)

CLC Number:

TS201.3

FENG Xiaowan, XIA Yongjun, WANG Guangqiang, AI Lianzhong. Screening of Exopolysaccharide (EPS)-Producing Lactobacillus plantarum and Bioactivity of the EPS[J]. FOOD SCIENCE, doi: 10.7506/spkx1002-6630-201613022.

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