首页>
外国专利>
Lipase immobilized on a chitosan carrier
Lipase immobilized on a chitosan carrier
展开▼
机译:固定在壳聚糖载体上的脂肪酶
展开▼
页面导航
摘要
著录项
相似文献
摘要
An enzyme immobilizing carrier is produced by dissolving low- molecular weight chitosan in an aqueous acid solution and dropping the solution into a basic solution to produce regenerated porous chitosan in particles, reacting the regenerated porous chitosan in particles with the glycidyl ether of an aliphatic polyalcohol, and reacting further the resulting chitosan with the acid halide or acid anhydride of a higher fatty acid in a polar organic solvent. An enzyme and a polyfunctional cross-linking agent are reacted with the carrier to covalently immobilize the enzyme on the carrier. In a preferred embodiment, the enzyme is lipase and the carrier is produced by introducing the glycidyl ether of an aliphatic polyalcohol at 0.01 to 0.4 mole to 1 mole of the pyranose ring residue of the chitosan and by introducing a higher fatty acid having a total carbon number of 6 to 20 at 0.05 to 1 mole to 1 mole of the pyranose ring residue of the chitosan.
展开▼