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《Acta Sericologica Sinica》 1997-03
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A STUDY ON Al_2O_3-CHITOSAN AS SUPPORTS OF IMMOBILIZED ENZYME

Tai Ningwen; Zhuang Dahuan(The Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang 212018, China)Ji Xingsong; Yuan Zhongyi(Shanghai Institute of Biochemistry, Academia Sinica,Shanghai 200031, China)  
In the present study chitosan-coating Al2O3 was used as supports for enzyme immobilization. It was discovered that different concentrations of Al2O3-chitosan, degrees of deacetylation and molecular weights of chitosan were related to the immobilization. When Al2O3-chitosan was at concentration of 2. 0%, deacetylation at 85% and with a molecular weight of 1 .03 × 106 Dalton, the best immobilization was obtained. The immobilized GOD showed a high enzymatic activity, improved thermal stability and longer operating stability.
【CateGory Index】: Q814
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