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Position: Home > Articles > Study on the fed-batch fermentation of L-valine hyper-producer XQ-8 Science and Technology of Food Industry 2012 (2) 192-194

L-缬氨酸高产菌XQ-8补料分批发酵的研究

作  者:
张伟国’;钱和;乎守涛;刘康乐;程国平;张苏龙;聂晓东
单  位:
梅花集团通辽基地;江南大学工业生物技术教育部重点实验室;江南大学食品学院
关键词:
L-缬氨酸;补料分批发酵;优化
摘  要:
在分批发酵优化条件基础上,通过对补料分批发酵方式发酵过程的各种参数,包括产酸率、转化率和发酵周期等进行了研究,确定了L-缬氨酸高产菌XQ-8补料分批发酵的最优条件。在最优补料分批发酵条件下发酵72h左右,L-缬氨酸产量达72g/L,糖酸转化率达38%以上,其结果明显优于分批培养。
译  名:
Study on the fed-batch fermentation of L-valine hyper-producer XQ-8
作  者:
ZHANG Wei-guo1,QIAN He2,HU Shou-tao3,LIU Kang-le3,CHENG Guo-ping3,ZHANG Su-long3,NIE Xiao-dong3(1. Key Laboratory of Industrial Biotechnology of Ministry of Education,School of Food Science and Technology,Wuxi 214122,China;2. Jiangnan University,Wuxi 214122,China;3. Tongliao Base of Meihua Group,Tongliao 028024,China)
关键词:
L-valine;fed-batch fermentation;optimization
摘  要:
On the basis of optimization of batch fermentation conditions,by way of the various parameters of the fed-batch fermentation process,including valine production,glucose/valine conversion rate and fermentation period were studied to determine optimal fed-batch fermentation conditions of the L-valine producer XQ-8.In the optimal fed-batch fermentation conditions for about 72h,L-valine production was up to 72g/L,glucose/valine conversion rate was more than 38%,the results were better than batch fermentation.

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