Chemometric analysis of lipase-catalyzed synthesis of xylitol esters in a solvent-free system
作者:Atena Adnani、Mahiran Basri、Naz Chaibakhsh、Hossein Abbastabar Ahangar、Abu Bakar Salleh、Raja Noor Zaliha Raja Abdul Rahman、Mohd Basyaruddin Abdul Rahman
DOI:10.1016/j.carres.2010.12.023
日期:2011.3
Candida antarctica lipase B-catalyzed esterification of xylitol and two fatty acids (capric and caproic acid) were studied in a solvent-free system. The Taguchi orthogonal array method based on three-level-four-variables with nine experiments was applied for the analysis and optimization of the reaction parameters including time, substrate molar ratio, amount of enzyme, and amount of molecular sieve. The
在无溶剂体系中研究了固定化念珠菌南极脂肪酶B催化木糖醇和两种脂肪酸(癸酸和己酸)的酯化反应。基于三级四变量的Taguchi正交阵列法,经过9次实验,对反应参数进行了分析和优化,包括时间,底物摩尔比,酶的量和分子筛的量。在木糖醇和癸酸的酯化反应中,链长越长,转化率越高。通过Taguchi方法获得的合成木糖醇癸酸酯和木糖醇己酸酯的最佳条件是反应时间29和18h。底物摩尔比为0.3和1.0;酶的量分别为0.20和0.05g,分子筛的量为0.03g。预测的转化率之间具有良好的相关性(分别为74.18%和61。