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植物乳杆菌的功能评价

熊强 王凯 王延斌

生物加工过程2016,Vol.14Issue(6):46-53,8.
生物加工过程2016,Vol.14Issue(6):46-53,8.DOI:10.3969/j.issn.1672-3678.2016.06.009

植物乳杆菌的功能评价

Gastrointestinal survival and beneficial properties in vitro of Lactobacillus plantarum strains

熊强 1王凯 1王延斌1

作者信息

  • 1. 南京工业大学 食品与轻工学院,江苏 南京 211800
  • 折叠

摘要

Abstract

Six lactic acid bacteria were isolated from fermented vegetable made in the laboratory, and identified as Lactobacillus plantarum by physiological, biochemical and molecular biology tests. L. plantarum Z22,one of six strains of L. plantarum,had strong gastrointestinal resistance,with the survival rate was 95�45% in the simulated intestinal juice and 45�24% in gastric juice. The strain could remove 65�80% cholesterol in vitro. The extracellular polysaccharide EPS⁃S and EPS⁃Z of L. plantarum Z22 could scavenge 1,1⁃diphenyl⁃2⁃picrylhydrazyl radical (·DPPH),hydroxyl radicals (·OH) and super⁃oxide anion radicals (·O-2 ) ,the scavenge rates were 27�75%,66�16%,58�00% and 24�02%,59�03%, 45�20%,respectively.The antioxicant activity of poly saccharide EPS⁃S is higher than that of EPS⁃Z.

关键词

植物乳杆菌/胞外多糖/抗氧化

Key words

Lactobacillus plantarum/extracellular polysaccharide/antioxidant activity

分类

轻工纺织

引用本文复制引用

熊强,王凯,王延斌..植物乳杆菌的功能评价[J].生物加工过程,2016,14(6):46-53,8.

基金项目

江苏省重点研发项目 ()

生物加工过程

OACSTPCD

1672-3678

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