利用玉米秸秆廉价生产鼠李糖脂的研究  

Study on cost-effective production of rhamnolipid from biomass waste by fermentation

作　　者：张媛 常思源 Zhang Yuan;Chang Siyuan(Nanjing Zoonbio Biotechnology Co.Ltd.,R&D Department,College of Biology and Environment,Nanjing Polytechnic Institute,Nanjing 210048,China)

机构地区：[1]南京钟鼎生物技术有限公司研发部,江苏南京210034 [2]南京科技职业学院生物与环境学院,江苏南京210048

出　　处：《现代盐化工》2021年第1期23-24,31,共3页Modern Salt and Chemical Industry

基　　金：南京科技职业学院校级科研课题(NHKY-2019-18)。

摘　　要：鼠李糖脂是一种重要的生物表面活性剂,在石油开采、农业、医药、化妆品及生物降解等不同领域有着广泛的应用。鼠李糖脂低产量、高成本的劣势极大地限制了其更为广泛的应用。研究铜绿假单胞菌PC-1以廉价的玉米秸秆稀酸解液生产鼠李糖脂的工艺,进一步对鼠李糖脂的发酵培养氮源和发酵条件进行优化,当玉米秸秆稀酸解液和含糖浓度NaNO_3分别设定为20.0 g/L和15.0 g/L时,鼠李糖脂产量可达19.3 g/L。Rhamnolipid is an important biosurfactant, which is widely used in petroleum exploitation, agriculture, medicine, cosmetics and biodegradation. The low yield and high cost of rhamnolipid limit its wider application. In this study, the technology of rhamnolipid production by Pseudomonas aeruginosa PC-1 was studied. Furthermore, the nitrogen source and fermentation conditions of rhamnolipid were optimized. When the mass concentrantions of corn straw dilute acid hydrolysate and NaNO3 were set at 20.0 g/L and 15.0 g/L respectively, the rhamnolipid yield was 19.3 g/L.

关 键 词：鼠李糖脂 铜绿假单胞菌PC-1 玉米秸秆稀酸解液 

分 类 号：TK6[动力工程及工程热物理—生物能] TQ423[化学工程]