エチレンービニルアルコール共重合体による酵素の固定化 : 粒子同時包括の影響
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概要
- 論文の詳細を見る
In order to elucidate the effects of the presence of a particle within an immobilized enzyme, β-glucosidase (β-GD) and a fine particle such as silicon, γ-alumina and hydroxyapatite has been coimmbilized in ethylene-vinylalcohol copolymer (EVA) membrane. The coimmobilized β-GD was characterized enzymatically compared with native enzyme, using p-nitrophenyl-β-D-glucopyranoside (PNPG) as a substrate. Diffusion and partiton coefficients (D and P, respectively) of PNPG and reaction products in EVA membrane with and without particles were determined by a conventional method. Apparent affinity for the substrate increased by the presence of a particle. Enzyme affinity for substrate in the EVA membrance was discussed on the basis of the data of D, P, membrance thickness and kinetic parameters.
- 山口大学の論文