乳酸菌胞外多糖的结构、生物合成及其应用

doi:10.7506/spkx1002-6630-201307071

食品科学 ›› 2013, Vol. 34 ›› Issue (7): 335-339.doi: 10.7506/spkx1002-6630-201307071

乳酸菌胞外多糖的结构、生物合成及其应用

丹彤，王俊国，张和平*

内蒙古农业大学乳品生物技术与工程教育部重点实验室，内蒙古呼和浩特 010018

收稿日期:2012-03-09 修回日期:2013-03-07 出版日期:2013-04-15 发布日期:2013-03-20
通讯作者: 张和平 E-mail:hepingdd@vip.sina.com
基金资助:
内蒙古自然科学基金开放课题(20102010)；中国科学院“西部之光”人才培养计划项目

Structure, Biosynthesis and Application of Exopolysaccharides by Lactic Acid Bacteria

DAN Tong，WANG Jun-guo，ZHANG He-ping*

Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Educationn, Inner Mongolia Agricultural University, Huhhot 010018, China

Received:2012-03-09 Revised:2013-03-07 Online:2013-04-15 Published:2013-03-20
Contact: ZHANG He-ping E-mail:hepingdd@vip.sina.com

摘要/Abstract

摘要： 胞外多糖(EPS)是微生物在生长代谢过程中分泌到细胞壁外常渗于培养基的一类糖类化合物。这些高分子糖类聚合物因具有独特的流变学特性和分子结构，可作为增稠剂、乳化剂和稳定剂等在食品和非食品工业中发挥重要作用。一些乳酸菌胞外多糖还具有促进免疫、降低胆固醇和抗肿瘤等特性。本文综述了乳酸菌胞外多糖的化学结构、生物合成机制及其在食品中的应用。

关键词: 乳酸菌, 胞外多糖, EPS基因簇, 生物合成, 遗传调控

Abstract: Exopolysaccharides (EPS) are secreted outside cell wall of producing microorganism. Because of unique rheological properties and molecular structure, these polymers are widely used in foods as a stabilizer, thickener and emulsifier. In this article, chemical structure, biosynthesis and application of exopolysaccharide produced in bacteria have been reviewed, and new advances in exopolysaccharides produced by lactic acid bacteria (LAB) were discussed. Moreover, the results provide a new theoretical basis for increasing exopolysaccharide production of LAB.

Key words: lactic acid bacteria, exopolysaccharide, EPS gene cluster, biosynthesis, genetic engineering

中图分类号:

Q291

丹彤，王俊国，张和平*. 乳酸菌胞外多糖的结构、生物合成及其应用[J]. 食品科学, 2013, 34(7): 335-339.

DAN Tong，WANG Jun-guo，ZHANG He-ping*. Structure, Biosynthesis and Application of Exopolysaccharides by Lactic Acid Bacteria[J]. FOOD SCIENCE, 2013, 34(7): 335-339.

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乳酸菌胞外多糖的结构、生物合成及其应用

Structure, Biosynthesis and Application of Exopolysaccharides by Lactic Acid Bacteria

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