Optimization of enzyme catalyzed peptide synthesis in a “water - water-immiscible organic solvent” biphasic system
作者:Yu.L. Khmel'Nitski、Fam Khyu Dien、A.N. Semenov、Karel Martinek、B. Veruovič、Y. Kubánek
DOI:10.1016/s0040-4020(01)98818-0
日期:——
L-leucine amide in the biphasic system water - ethyl acetate. The synthesis was carried out using both free and. immobilized α-chymotrypsin. Optimization was performed, by such parameters as the “organic phase/aqueous phase” volume ratio, the pH of aqueous phase, and the concentration of starting reactants. Under most favourable condition the dipeptide was synthesized. on the preparative scale in ca
发现了在双相体系水-乙酸乙酯中酶促合成二肽N-乙酰基-L-色氨酸-L-亮氨酸酰胺的最佳条件。合成是使用游离的和游离的进行的。固定化的α-胰凝乳蛋白酶。通过“有机相/水相”体积比,水相的pH值和起始反应物的浓度等参数进行优化。在最有利的条件下,合成了二肽。大约在制备规模上。100%收率。固定化的结果(吸附在Sorsilen对苯二甲酸酯载体上)实际上没有使酶失活,可以重复使用。