结冷胶生物合成及应用

结冷胶是由少动鞘脂单胞菌产生的一种新型微生物多糖,具有用量低、透明度高、耐酸、耐高温、耐酶、兼容性好等优良特性,在食品、制药、化工等行业具有广泛的用途。通过介绍结冷胶理化方面的特性,总结了结冷胶发酵生产工艺,以及提高产量和质量的关键因素,进一步展望了未来结冷胶的发展趋势和应用前景。

Production in biosynthesis and application of gellan gum

Gellan gum is a new microbial polysaccharide derived from gram-negative bacterium sphingornonas paucirnobilis.Due to its many functional properties such as low amount for effect,high transparency,good acid and heat resistance,upstanding compatibility,etc.,it has been widely used in foods,pharmaceuticals production,and chemical engineering.This paper introduces chenical character of gellan gum,and focuses on the biosynthesis,the process of fermentation,the recovery and purification of gellan gum.It was pointed out that improving its recovery process is the crucial step for a high yield rate and good quality of gellan gum.The developing trends and application prospects of gellan gum.