Immobilization of enzyme biocatalyst on natural halloysite nanotubes

被引：185

作者：

Zhai, Rui ^{[1
]}

Zhang, Bing ^{[1
]}

Liu, Lin ^{[1
]}

Xie, Yinde ^{[2
]}

Zhang, Haoqin ^{[1
]}

Liu, Jindun ^{[1
]}

机构：

[1] Zhengzhou Univ, Sch Chem Engn, Zhengzhou 450001, Peoples R China

[2] Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2010年 / 12卷 / 04期

关键词：

Halloysite nanotube; Biocatalyst; Immobilized enzyme; Enzyme activity; CLAY NANOTUBES; ALPHA-AMYLASE; UREASE IMMOBILIZATION; GLUCOSE-OXIDASE; CANDIDA-RUGOSA; SUPPORT; LIPASE; STABILITY; KAOLINITE; ZEOLITES;

D O I：

10.1016/j.catcom.2010.09.030

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study we use natural halloysite nanotubes as novel support materials to immobilize enzymes Two typical industrial enzymes (alpha-amylase and urease) with different sizes were immobilized in channels of the nanotubes through simple physical adsorption After 60 min heating both immobilized enzymes retained more than 80% activity Stored for 15 days the immobilized enzymes still showed more than 90% activity More than 55% initial activity of the enzyme was retained after 7 cycles The immobilized enzymes exhibited thermal stability good storage stability and reusability which indicate that halloysite is a promising support material for enzyme immobilization (C) 2010 Elsevier BV All rights reserved

引用

页码：259 / 263

页数：5

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