...
首页> 外文期刊>Journal of molecular catalysis, B. Enzymatic >Sol-gels and cross-linked aggregates of lipase PS from Burkholderia cepacia and their application in dry organic solvents
【24h】

Sol-gels and cross-linked aggregates of lipase PS from Burkholderia cepacia and their application in dry organic solvents

机译:洋葱伯克霍尔德氏菌脂肪酶PS的溶胶-凝胶和交联聚集体及其在干燥有机溶剂中的应用

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       

摘要

Lipase PS from Burkholderia cepacia (formerly Pseudomonas cepacia) was successfully immobilized in sol-gels under low methanol conditions using lyophilization in order to dry the gel. The enzyme was also cross-linked with glutaraldehyde to CLEAs without any additives. These immobilized enzyme preparations were employed for the highly enantioselective acylations of 1-phenylethanol (1), 1-(2-furyl)ethanol (2) and N-acylated 1-amino-2-phenylethanol (3) with vinyl acetate in organic solvents. Enzymatic hydrolysis of the obtained ester product was observed as a side reaction of the acylation of 3 in the presence of lipase PS powder. Hydrolysis was suppressed when the immobilized preparations of lipase PS were used. (c) 2007 Elsevier B.V. All rights reserved.
机译:为了使凝胶干燥,在低甲醇条件下成功地将洋葱伯克霍尔德氏菌(以前称为假单胞菌)的脂肪酶PS固定在溶胶-凝胶中。该酶也用戊二醛交联成CLEA,而没有任何添加剂。这些固定的酶制剂用于在有机溶剂中用乙酸乙烯酯对1-苯基乙醇(1),1-(2-呋喃基)乙醇(2)和N-酰化的1-氨基-2-苯基乙醇(3)进行高度对映选择性的酰化反应。在脂肪酶PS粉末的存在下,观察到所得酯产物的酶水解为3的酰化的副反应。当使用脂肪酶PS的固定制剂时,水解被抑制。 (c)2007 Elsevier B.V.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号