| 1. | Optimization of culture for producing l - aspartic acid by e . coli 天冬氨酸转化菌发酵条件的优化 |
| 2. | L - aspartic acid 99 % min 天冬氨酸 |
| 3. | L - aspartic acid l 天冬氨酸 |
| 4. | L - aspartic acid 天门冬氨酸 |
| 5. | L - aspartic acid 天冬氨酸 |
| 6. | Assembly and structural characteristics of supramolecular l - aspartic acid pillared layered double hydroxides 天冬酸插层水滑石的组装及其结构表征 |
| 7. | L - aspartic acid is a non - essential , acidic , genetically coded amino acid . found especially in young sugar cane and sugar - beet molasses 天冬氨酸是一种非必需的酸性氨基酸,尤指从小的甘蔗和甜菜的糖蜜中提取的。 |
| 8. | The optimal temperature , the optimal ph value and the optimal substrate ( l - aspartic acid ) concentration for the enzymatic reaction by adl were 40 , 5 . 0 and 66 . 5 ~ 133g / l , respectively 对固定化细胞性质进行的初步研究发现,其最适温度为40 ,最适ph为5 . 0 ,最适底物浓度范围为66 . 5 133g l 。 |
| 9. | A packed bed reactor filled with the immobilized cells was developed to continuously produce l - alanine from l - aspartic acid . the reactor with100g / l substrate solution had been running for 20 days at 37 在温度37 、底物浓度100g l的条件下,该固定化细胞在填充床反应器中连续运行20天,测得其半衰期为71天。 |
| 10. | Based on the above results , a method for producing l - alanine from l - aspartic acid using immobilized pseudomonas dacunhae cells was investigated in this thesis . the cells were immobilized with k - carrageenan and treated with two kind of hardening agents 结果发现,以-卡拉胶作为包埋剂、再经两种硬化剂处理得到的固定化细胞,具有较高的酶稳定性和回收率。 |