γ-多聚谷氨酸的研究进展及其作为动物饲料添加剂的开发前景  

Research Progress of Poly-γ-Glutamic Acid and Its Development Prospect as Animal Feed Additive

作　　者：孙燕勇 宋利文 张兴夫 SUN Yanyong;SONG Liwen;ZHANG Xingfu(Inner Mongolia Academy of Agricultural&Animal Husbandry Sciences,Hohhot 010031,China)

机构地区：[1]内蒙古自治区农牧业科学院,呼和浩特010031

出　　处：《动物营养学报》2025年第1期22-35,共14页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：内蒙古农村中小规模肉牛养殖精准饲喂体系及技术服务平台搭建和示范(2021GG0061);γ-多聚谷氨酸对绵羊瘤胃钙吸收的影响机制及其产品稳定性研究(2025CXJJM01)。

摘　　要：γ-多聚谷氨酸(γ-PGA)是一种阴离子假多肽,主要由芽孢杆菌产生和分泌,是天然、安全、无免疫原性、可生物降解以及环保的生物聚合物,在食品与饲料添加剂、医学制药、污水处理、化妆品以及农作物等领域表现出优良特性。本文从γ-PGA的理化性质、生产制备和应用角度出发,结合国内外的研究进展,对其微生物发酵合成途径、生产工艺优化和在动物饲养及其他方面的应用研究进行综述,旨在全面解读γ-PGA的特征,为将其进一步开发为饲料添加剂提供依据。Poly-γ-glutamic acid(γ-PGA)is an anionic pseudopolypeptide,mainly produced and secreted by bacillus,is a natural,safe,non-immunogenic,biodegradable and environmentally friendly biopolymer,and shows excellent properties in food and feed additives,medicine and pharmaceuticals,wastewater disposal,cosmetics and crops and other fields.Based on the physicochemical properties,production,preparation and application ofγ-PGA,this paper reviewed the synthesis pathway of microbial fermentation,production process optimization,and application in animal feeding and other aspects ofγ-PGA,aiming to comprehensively understand the characteristics ofγ-PGA and provide a basis for its further development as a feed additive.

关 键 词：γ-多聚谷氨酸 生物聚合物 理化性质 微生物发酵 饲料添加剂 

分 类 号：S816.7[农业科学—饲料科学]