...
首页> 外文期刊>Bioprocess and Biosystems Engineering >Optimization of lipase-catalyzed glucose ester synthesis in ionic liquids
【24h】

Optimization of lipase-catalyzed glucose ester synthesis in ionic liquids

机译:离子液体中脂肪酶催化的葡萄糖酯合成的优化

获取原文
获取原文并翻译 | 示例
           

摘要

Lipase-catalyzed esterification of glucose with fatty acids in ionic liquids (ILs) mixture was investigated by using supersaturated glucose solution. The effect of ILs mixture ratio, substrate ratio, lipase content, and temperature on the activity and stability of lipase was also studied. The highest yield of sugar ester was obtained in a mixture of 1-butyl-3-methylimidazolium trifluoromethanesulfonate ([Bmim][TfO]) and 1-methyl-3-octylimidazolium bis[(tri-fluoromethyl)-sulfonyl]amide ([Omim][Tf_2N]) with a volume ratio of 9:1, while Novozym 435 (Candida antarctica type B lipase immobilized on acrylic resin) showed the optimal stability and activity in a mixture of [Bmim][TfO] and [Omim][Tf_2N] with a 1:1 volume ratio. Reuse of lipase and ILs was successfully carried out at the optimized reaction conditions. After 5 times reuse of Novozym 435 and ILs, 78% of initial activity was remained.
机译:通过使用过饱和葡萄糖溶液研究了脂肪酶在离子液体(ILs)混合物中与脂肪酸的葡萄糖酯化反应。还研究了ILs混合比,底物比,脂肪酶含量和温度对脂肪酶活性和稳定性的影响。在三氟甲烷磺酸1-丁基-3-甲基咪唑鎓([Bmim] [TfO])和双[[三氟甲基]-磺酰基]酰胺1-甲基-3-辛基咪唑鎓([Omim]的混合物中,糖酯的收率最高] [Tf_2N])的体积比为9:1,而Novozym 435(固定在丙烯酸树脂上的南极洲C型念珠菌脂肪酶)在[Bmim] [TfO]和[Omim] [Tf_2N]的混合物中显示出最佳的稳定性和活性],体积比为1:1。在优化的反应条件下成功进行了脂肪酶和IL的重用。 Novozym 435和IL重复使用5次后,保留了78%的初始活性。

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