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- Synthesis technology of aspartame from L aspartic acid and L phenylalanine was studied in this paper.At first,each step of the synthesis was investigated separately. 探讨了以天冬氨酸和苯丙氨酸为原料制备甜味剂阿斯巴甜的合成工艺。
- In the enzyme L phenylalanine process,there are many impurity components in reaction liquid,such as mycelium and its fragment,enzymes,and bio macromolecule. 酶法生产L-苯丙氨酸的工艺中,反应液中含有大量的菌体及其碎片、酶和生物大分子等杂质。
- Four kinds of methods for preparation of L phenylalanine are reviewed.The new development of asymmetric synthesis of L phenylalanine is also introduced. 对目前国内外L苯丙氨酸制备方法的研究进展进行了综述,并介绍了L苯丙氨酸不对称合成的最新研究进展。
- Keywords L Phenylalanine;Immobilized cell;Rhodotorula glutinis; 苯丙氨酸;固定化细胞;粘红酵母;
- Keywords L aspartyl L phenylalanine methyl ester;synthesis;advance; 天门冬氨酰-L-苯丙氨酸甲酯;合成;进展;
- Keywords Rhodotorula giutinis;L phenylalanine;L phenylalanine ammonia lyase; 粘红酵母;L-苯丙氨酸;苯丙氨酸解氨酶;
- Keywords Rhodotorula glutinis;L phenylalanine;ammonia lyase（PAL）;L phenylalanine medium optimization.; 粘红酵母;L-苯丙氨酸解氨酶（PAL）;L-苯丙氨酸;培养基优化;
- London is spelt with a capital L'. London一字中L是大写的。
- Expandable polystyrene resin and other products. 可发性聚苯乙烯树脂,苯酚及其它。
- Anti shock polystyrene composite board No. 抗冲击聚苯乙烯镜面复合装饰板项目。
- Labelled shikimic acid is reality converted to phenylalanine. 标记的莽草酸迅速地转变成苯丙氨酸。
- My main concern is with the W's and L's. 我关注的是一场比赛的输赢。
- I charge you not to forget what l have said. 我告诫你不要忘记我所说的话。
- The floor was littered with ravel(l)ings. 地板上布满了散线。
- The punch level(l)ed him to the ground. 这一拳将他击倒在地。
- The soldier level(l)ed his rifle at the target. 士兵举起步枪瞄准靶子。
- George travel(l)ed all over Europe last summer. 乔治在去年夏天游遍了欧洲。
- The computer is packed in expanded polystyrene before is shipped. 这台计算机运送前用弹性聚苯乙烯包装.
- He libel(l)ed against her character in an article. 他在一篇文章中诽谤她的人格。
- Bring a mug to the office instead of using polystyrene cups. 带一个大杯子到办公室，不要用一次性塑料杯子。
