苏云金芽孢杆菌以色列亚种(Bti)发酵液的浓缩工艺研究  

Studies on concentration process of BTi fermentation broth

作　　者：陈伟 廖先清 刘芳 饶犇 周荣华 CHEN Wei;LIAO Xian-qing;LIU Fang;RAO Ben;ZHOU Rong-hua(Hubei of Biopesticide Engineering Research Center,Wuhan 430064,China)

机构地区：[1]湖北省生物农药工程研究中心

出　　处：《湖北农业科学》2019年第22期111-113,共3页Hubei Agricultural Sciences

基　　金：国家重点研发计划项目(2017YFD0201205)

摘　　要：通过对苏云金芽孢杆菌以色列亚种(Bacillus thuringiensis subsp. israelensis,Bti)发酵液浓缩工艺的研究,探索了不同温度对浓缩液有效成分的影响程度,比较了不同浓缩方式、不同干燥方式处理下有效成分的回收率。结果表明,采用真空薄膜浓缩方式最终得到的产物质量是离心浓缩方式得到产物质量的176%,效价回收率提高了36%。Through the study on the concentration process of Bacillus thuringiensis subsp. israelensis(Bti) fermentation broth,the effects of different temperatures on the active components of the concentrate were explored. The recovery rates of the active components under different concentration methods and different drying methods were compared. The results show that the quality of the product finally obtained by the vacuum film concentration method is 176% of the mass of the product obtained by centrifugal concentration, and the recovery rate of the potency is increased by 36%.

关 键 词：苏云金芽孢杆菌以色列亚种(Bacillus THURINGIENSIS subsp. israelensis) 真空薄膜浓缩 离心浓缩 

分 类 号：Q813.1[生物学—生物工程]