L-谷氨酸的消旋研究及DL-谷氨酸的制备  

Study on the Racemization of L-Glutamic Acid and Production of DL-Glutamic Acid

作　　者：栗更新[1] 许文松[1] 王蓓[1] 徐六兴[1] 

机构地区：[1]浙江大学材料与化工学院,浙江杭州310027

出　　处：《化学世界》2006年第7期433-435,共3页Chemical World

摘　　要：研究了L-谷氨酸在不同pH、溶剂、温度、反应时间下的消旋过程,并由最佳消旋条件制备DL-谷氨酸。实验结果表明:当乙酸浓度大于95%、以水杨醛为催化剂、温度90℃、n(水杨醛)∶n(谷氨酸)=0.1时,消旋效果最好。The influence of pH, solvent, temperature and reaction time on the racemization process of L-glutamic acid（L- Glu） was studied respectively. The experiment results indicated that a higher yield of DL-glutamie acid（DL-Glu） could be obtained when the molar ratio of salieylaldehyde to glutamie acid was 0.1, concentration of acetic acid was above 0.95 and the temperature was 90 ℃.

关 键 词：消旋 L-谷氨酸 DL-谷氨酸 水杨醛 

分 类 号：O629.71[理学—有机化学]