The rate - controlling step of resoluting N - acetyl - D , L - alanine with porous immobilized Aspergillus Oryzae cells was studied.

研究了固定化米曲霉菌光学拆分N - 乙酰 -D, L - 丙氨酸反应过程的速率控制步骤.

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D, L - lactide was prepared L - lactic acid with zinc acetate as catalyst, crude yield was 86.

以D, L - 乳酸为原料,在催化剂乙酸锌存在下,通过脱水环化, 制备出粗产率为86.

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The in situ graft copolymerization of starch with D , L - lactide was investigated.

研究了在聚乙二醇(PEG) 存在下,淀粉与丙交酯的原位熔融接枝反应.

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Lei D - L , Yang DL and Liu HM.

雷德亮, 廖丽民, 楚亚平,刘湘梅.

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