L-鸟氨酸生产菌的选育及其发酵条件的研究  

Breeding of L-Ornithine Producing Strain and Studies on Its Fermentation Conditions

作　　者：陈宁[1] 潘韵[1] 刘淑云[1] 张克旭[1] 

机构地区：[1]天津轻工业学院食品工程系,天津300222

出　　处：《食品与发酵工业》2001年第1期32-36,共5页Food and Fermentation Industries

摘　　要：以谷氨酸棒杆菌为出发菌株 ,经硫酸二乙酯、紫外线诱变 ,定向选育出一株鸟氨酸生产菌A1157,其遗传标记为Arg- +D Argr+SGr,并能耐受高浓度葡萄糖。对菌株A1157的发酵条件进行了研究 ,在最佳培养条件下 ,该菌株L 鸟氨酸产量可达 9.85g/L。Original strain, Corynebacterium glutamicum, was mutated by DES and U V Then a higher L ornithine producing strain-A1157 was obtained It requires L Arginine as essential growth factor This mutant is resistant to D arginine and sulfaguanidine and could be cultured at high concentration glucose medium The fermentation conditions of A1157 were studied Under the optimum culture conditions, the strain A1157 was able to accumulate an average of 9 85?g/L of L ornithine

关 键 词：鸟氨酸 谷氨酸棒杆菌 育种 发酵 生产菌 

分 类 号：TQ92[轻工技术与工程—发酵工程]