γ-聚谷氨酸发酵过程中溶氧控制优化  

Dissolved Oxygen in γ-poly Glutamic Acid Fermentation Process Control Optimization

作　　者：丛泽峰 佟易 张秀荣 韩隽 丛琦林 陈美君[3] 

机构地区：[1]中粮生化能源(龙江)有限公司,黑龙江齐齐哈尔161100 [2]潍坊医学院,山东潍坊264400 [3]山东师范大学生命科学学院,山东济南250014

出　　处：《广州化工》2017年第8期39-40,46,共3页GuangZhou Chemical Industry

基　　金：国家科技支撑计划项目(NO:2012BAD37B05);农业科技成果转化基金项目(NO:2012CB2B100101)

摘　　要：γ-聚谷氨酸是一种新型可降解的生物高分子材料,在γ-聚谷氨酸发酵过程中,溶解氧浓度是影响发酵产酸的重要因素之一,不同的溶解氧条件对菌体生长及发酵过程产生的代谢产物γ-聚谷氨酸的积累影响很大。通过研究不同溶解氧条件下γ-聚谷氨酸发酵中前体谷氨酸的消耗情况,菌体生长的变化规律,终了发酵代谢产物的收率,优化出γ-聚谷氨酸发酵过程中适宜的溶氧控制条件,对进一步提高γ-聚谷氨酸收率,提高产品利润具有重要意义。γ-poly glutamic acid is a new type of biodegradable biopolymer. In the process of γ-poly glutamic acid fermentation, dissolved oxygen concentration is one of the important factors affecting the fermentation of acid production. Different dissolved oxygen conditions have great impact for cell growth and accumulation of metabolites poly glutamic acid produced in the fermentation process. By studying the consumption of glutamate in the γ-poly glutamic acid fermentation under different dissolved oxygen conditions, the change of the cell growth and the yield of the fermentation metabolite, conditions for the dissolved oxygen in the process of γ-poly glutamic acid fermentation control were optimized, it had great significance for further improving the yield of γ-poly glutamic acid and product profits.

关 键 词：Γ-聚谷氨酸 发酵工艺 溶解氧 

分 类 号：TS201[轻工技术与工程—食品科学]