%0 Journal Article
%T Immobilized Lipase Catalyzed Synthesis of Vitamin A Plamitate<br>固定化脂肪酶合成维生素A棕榈酸酯
%A Hongliang Li
%A Jing Hu
%A Tianwei Tan
%A <br>李宏亮
%A 胡晶
%A 谭天伟
%J 生物工程学报
%D 2008
%I 
%X The synthesis of vitamin A plamitate in organic solvent with vitamin A acetate and ethyl palmitate with immobilized lipase from Candida sp. was studied. The influences of solvent, the molar ratio of substrates, the reaction temperature and time, and the water concentration were optimized and the best result was obtained by transesterification from 0.100 g vitamin A acetate and 0.433 g ethyl palmitic, at 30°C, in 10 mL petroleum ether, containing 0.2% of water (V/V), with 1.1 g lipase. In these conditions, the yield of vitamin A palmitate reached 83% in 12 h. The immobilized lipase was reused about 5 batches.
%K vitamin A
%K vitamin A plamitate
%K lipase synthesis
%K transesterification<br>维生素A
%K 维生素A棕榈酸酯
%K 脂肪酶合成
%K 转酯化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=A66E90C274451689E69F6F0291467824&aid=C62009D41DFC3CD935F1C7BBF442B84D&yid=67289AFF6305E306&vid=B91E8C6D6FE990DB&iid=94C357A881DFC066&sid=92DE343A8428AA81&eid=45D68DF69BA881EC&journal_id=1000-3061&journal_name=生物工程学报&referenced_num=2&reference_num=16