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Immobilization of Amano lipase AK from Pseudomonas fluorescens on different types of chitosan-containing supports: use in the kinetic resolution of rac -indanol
Bioprocess and Biosystems Engineering ( IF 3.5 ) Pub Date : 2021-01-03 , DOI: 10.1007/s00449-020-02487-2
Thiago de Sousa Fonseca 1, 2 , Ulisses Marcondes Freire de Oliveira 1 , Maria da Conceição Ferreira de Oliveira 1 , Telma Leda Gomes de Lemos 1 , Marcos Reinaldo da Silva 3 , Nathalia Saraiva Rios 4 , Luciana Rocha Barros Gonçalves 4 , Marcos Carlos de Mattos 1
Affiliation  

Amano lipase AK from P. fluorescens was immobilized on different types of chitosan-containing supports. Chitosan lower molecular weight (2.5%), chitosan lower molecular weight/sodium alginate (2.5%/2.5%) and chitosan lower molecular weight/carrageenan (2.5%/2.5%) allowed the highest values of immobilization yields (IY) of 81, 81 and 83%, respectively. Best activity results were achieved using chitosan average molecular weight (5%) and chitosan lower molecular weight/sodium alginate (2.5%/2.5%) as support, with values of 1.40 and 1.30 UpNPB/ggel and with recovery activities of 45.75 and 35.6%, respectively. These derivatives were evaluated in the kinetic resolution of rac-indanol to obtain a key intermediate in the synthesis of a drug used in the treatment of Parkinson's disease. The most efficient derivatives in the kinetic resolution were lipase immobilized on chitosan average molecular weight (5.0%) and chitosan low molecular weight/sodium alginate, the latter leading to obtaining both (S)-indanol and (R)-indanyl acetate with > 99% ee and 50% conversion.



中文翻译:

来自荧光假单胞菌的天野脂肪酶 AK 固定在不同类型的含壳聚糖载体上:用于消旋茚满醇的动力学拆分

来自荧光假单胞菌的天野脂肪酶 AK固定在不同类型的含壳聚糖载体上。壳聚糖低分子量 (2.5%)、壳聚糖低分子量 / 海藻酸钠 (2.5% / 2.5%) 和壳聚糖低分子量 / 角叉菜胶 (2.5% / 2.5%) 允许固定化产率 (IY) 的最高值分别为 81、81 和 83%。使用壳聚糖平均分子量(5%)和壳聚糖低分子量/海藻酸钠(2.5%/2.5%)作为载体获得最佳活性结果,值分别为1.40和1.30 U p NPB /g凝胶,并具有回收活性分别为 45.75 和 35.6%。这些衍生物在rac的动力学拆分中进行了评估- 茚满醇获得合成用于治疗帕金森病的药物的关键中间体。动力学拆分中最有效的衍生物是固定在壳聚糖平均分子量 (5.0%) 上的脂肪酶和壳聚糖低分子量/海藻酸钠,后者导致获得 ( S ) -茚满醇和 ( R ) - 乙酸茚满酯 > 99 % ee和 50% 转化率。

更新日期:2021-01-03
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