摘要
γ-聚谷氨酸(γ-polyglutamic acid,γ-PGA)是由L-谷氨酸或D-谷氨酸通过肽键结合形成的一种多肽高分子,具有良好的水溶性、生物相容性、水解性、生物可降解性、无毒等优良特性。文章综述了微生物合成γ-PGA生产工艺,如生产菌株、培养基优化、发酵工艺和固定化技术等,介绍了γ-PGA在废水处理方面的应用,并指出了其发展方向。
γ-polyglutamic acid is a polypeptide composed of L-glutamic acid or D-glutamic acid by peptide bond formation.γ-PGA is a promising environmental friendly material with outstanding water solubility,biocompatibility,hydrolysis,biodegradability and nontoxic.This paper reviews the microbial synthesis ofγ-PGA production processes,such as the production of strains,medium optimization,fermentation technology and immobilization technology.Meanwhile,it focuses on the application ofγ-PGA in wastewater treatment,and points out the development direction in the future.
作者
邵颖
赵彩凤
邵赛
张乐平
SHAO Ying;ZHAO Cai-feng;SHAO Sai;ZHANG Le-ping(Institute of Nuclear Agricultural Science and Space Mutation Breeding, Hunan Academy of Agriculture Sciences,Hunan province Engineering Technology Research Center of Agricultural Biological Irradiation, Hunan province Biological Irradiation Techonology Engineering Research Center, Changsha 410125)
出处
《湖南农业科学》
2017年第8期123-126,共4页
Hunan Agricultural Sciences
基金
湖南省农业生物辐照工程技术研究中心科学基金开放项目(2016KF002)
湖南省农业科学院科技创新项目(2016QN09)
湖南省环境保护厅科研课题(湘财建指[2016]59号)
关键词
Γ-聚谷氨酸
生物合成
废水
应用
综述
γ-polyglutamic acid
biosynthesis
wasterwater
application
review
