In this work, the effect of fatty acid chain length of different oils and the pore diameter of the biocatalyst were evaluated in the production of ethyl esters. Mesoporous organized silica MCM-41 and SBA-15 with pore diameters of 2.5 nm and 6.7 nm, respectively, were used for the lipase immobilization. The structural and textural characteristics of the supports and biocatalysts were verified by X-ray diffraction and nitrogen physisorption analyses. Pore size was the parameter with the most influence on the lipase loading and SBA-15 adsorbed more lipase. The combination of the chain length of the fatty acids presents in oils and the pore diameter of the biocatalyst influenced the lipase catalyst performance relative to the ethyl ester yield, indicating a preference for the medium-chain length fatty acid.

在这项工作中，评估了不同油的脂肪酸链长和生物催化剂孔径对乙酯生产的影响。孔径分别为 2.5 nm 和 6.7 nm 的介孔有机二氧化硅 MCM-41 和 SBA-15 用于固定脂肪酶。通过 X 射线衍射和氮物理吸附分析验证了载体和生物催化剂的结构和质地特征。孔径是对脂肪酶负载影响最大的参数，SBA-15 吸附更多的脂肪酶。存在于油中的脂肪酸链长和生物催化剂孔径的组合影响了脂肪酶催化剂相对于乙酯产量的性能，表明对中链脂肪酸的偏好。