摘要
探讨了有机溶剂体系固定化Candida antarctica脂肪酶催化大豆色拉油合成生物柴油的过程。将固定化Candida antarctica脂肪酶置于有机溶剂体系中催化合成生物柴油的效果较好。研究发现,在40℃下反应10 h,固定化Candida antarctica脂肪酶以石油醚作为有机溶剂转化率最高,当总醇油物质的量比为3∶1,固定化酶占5%(相对于油质量),加入5%质量分数的水时固定化酶反应活性最高,酯化率可以达到88.4%。固定化酶重复使用10次仍具有较高活性。
The process of composing biodiesel from soja salad oil by immobilized Candida antarctica lipase in organic solvent system was discussed.Results： The optimal organic solvent system for the catalytic action of immobilized Candida antarctica lipase is petroleum ether.The peak efficiency of transesterification is obtained when the reaction progresses at 40 ℃ for 10 h,using petroleum ether as organic solvent,molar ratio of total methanol to oil 3∶1,immobilized lipase dose 5% and water 5% The esterification rate is up to 88.4%.The immobilized enzyme keeps high activity after 10 batches of reaction.
出处
《中国粮油学报》
EI
CAS
CSCD
北大核心
2010年第2期74-77,共4页
Journal of the Chinese Cereals and Oils Association
基金
中国石化集团总公司基金(102019)
江苏省精细石油化工重点实验室基金(200403)
