利用味精生产的等电废液发酵生产γ-氨基丁酸的研究  

Production of γ-aminobutyric acid using isoelectricpoint waste from monosodium glutamate factory

作　　者：高年发[1] 宋磊[1] 张颖[1] 冯宇[1] 胥惠先[1] 

机构地区：[1]工业微生物教育部重点实验室天津科技大学生物工程学院,天津300457

出　　处：《中国酿造》2010年第8期22-25,共4页China Brewing

摘　　要：γ-氨基丁酸(GABA)是一种重要的抑制性神经递质,具有多种生理功能,研究广泛并且市场前景广阔。研究利用味精厂产生的废液为原料生产γ-氨基丁酸,经过优化后在等电废液中添加葡萄糖15g/L,酵母粉10g/L,在pH值为4.5时30℃静置培养72h,GABA产量为2.7g/L,比优化前产量提高50%。γ-aminobutyric acid （GABA） is an important inhibitory neurotransmitter with a variety of physiological functions, extensive research and broad market prospects. γ-aminobutyric acid was produced using waste ofmonosodium glutamate factory as raw materials. The optimum conditions were as follows： adding 15 g/L and 10g/L of glucose and yeast extract respectively in fermentation broth, adjusting pH to 4.5 and fermentation under 30℃ for 72 h. Content of GABA in broth was 2.7 g/L under optimum fermentation, which was 50% higher than that of before optimization.

关 键 词：Γ-氨基丁酸 谷氨酸废液 短乳杆菌 发酵 

分 类 号：TQ920.9[轻工技术与工程—发酵工程]