アミノ化 : 疎水化処理したニッケルフェライト酵素固定化担体

概要

論文の詳細を見る
A Ni-ferrite carrier having 1 mol% amino functional groups and 99 mol% hydrophobic surface functional groups was prepared. The primary particle diameter was 20 nm. Twenty mg of glucoamylase was immobilized on 1 g of the preparation, as well as on a carrier having 100 mol% amino groups. The activity of the immobilized enzyme on the former carrier was 40 times higher than that of the 100 mol% amino functional group carrier because of the rebound force provided by the hydrophobic surface functional groups. The pH stability of the immobilized enzyme was higher on the alkaline side than that of native one. The stability of the immobilized enzyme during long-term preservation in water at 5℃ was 1 month.
社団法人日本生物工学会の論文
1994-03-25