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Study of Enzymatic Synthesis of L-ascorbyl Fatty Acid Esters in Tert-amyl Alcohol
Pages: 1010-1015
Year: Issue:  6
Journal: Journal of Chemical Engineering of Chinese Universities

Keyword:  棕榈油L-抗坏血酸脂肪酶酯交换反应L-抗坏血酸脂肪酸酯转化率;
Abstract: 研究以棕榈油为酰基供体和L-抗坏血酸在有机相中利用脂肪酶催化酯交换反应合成L-抗坏血酸脂肪酸酯.对催化合成L-抗坏血酸脂肪酸酯的反应介质进行了比较,系统考察了底物浓度、溶剂用量、底物摩尔比、温度、水活度、分子筛加入时间和加入量对酶催化反应的影响,确定了最适反应条件:在20 mL用分子筛充分除水的叔戊醇中,0.352g·L-1抗坏血酸和4.535 g棕榈油(L-抗坏血酸和脂肪酸的底物摩尔比为1∶8)...
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