期刊
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
卷 32, 期 2, 页码 1272-1277出版社
ELSEVIER
DOI: 10.1016/j.jksus.2019.11.002
关键词
Extracellular polysaccharides; Lactobacillus sp.; Optimization; Antioxidant
资金
- Deanship of Scientific Research at King Faisal University [186339]
Exopolysaccharides (EPSs) are synthesized various organisms, including bacteria. These EPSs are used as emulsifying agents in various industries and a search of novel food grade isolate is also a continuous process. In this line of investigation, EPS producing Lactobacillus lactis was used for this study. A potent exopolysaccharide producing Lacobacillus lactis was isolated from milk sources. EPS production was optimized by traditional method initially. Further EPS production was optimized by response surface methodology. Antioxidant properties of the isolated EPS were analyzed. Among various bacterial isolates, L. lactis showed ability to produced maximum amount of exopolysaccharides. Addition of 1% (w/v) maltose enhanced the production of EPS. The nitrogen sources (1%, w/v) such as, ammonium sulphate, casein, skim milk and oat meal stimulated the production of EPS. EPS yield was enhanced for the components of culture medium like gelatine (0.78%), copper sulphate (0.039%) and maltose (0.31%) in optimized medium using Central Composite Design. The isolated EPS showed antioxidant property. Results suggest that EPS and the organism have wide application in food industry. (C) 2019 The Author. Published by Elsevier B.V. on behalf of King Saud University.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据