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    • 7. 发明授权
    • Gelling of pectic material using carboxylic ester hydrolase and oxidase
and/or peroxidase
    • 使用羧酸酯水解酶和氧化酶和/或过氧化物酶胶结胶质材料
    • US5998176A
    • 1999-12-07
    • US85344
    • 1998-05-27
    • Gitte BudolfsenLars Saaby Pedersen
    • Gitte BudolfsenLars Saaby Pedersen
    • C08B37/00C12P19/04C12P19/00
    • C12P19/04C08B37/0045
    • A method for causing gelling or increase of viscosity of an aqueous medium containing a gellable polymeric material which has functionalities with phenolic hydroxy groups, and which, in aqueous medium, is susceptible to viscosity increase or gelling in the presence of a carboxylic ester hydrolase, comprises treating the aqueous medium with: a carboxylic ester hydrolase (EC 3.1.1); and an oxidase (EC 1.10.3) and/or a peroxidase (EC 1.11.1); in the presence of an oxidizing agent suitable for use with the oxidase and/or peroxidase. Gelled products obtainable by the method may be dried or dehydrated to give products which are useful as absorbents for absorbing aqueous media, such as body fluids. In particular, gelling a pectic material obtainable from sugar beets using pectinesterase (EC 3.1.1.11) and laccase (EC 1.10.3.2).
    • 包含具有酚羟基官能团的可胶凝聚合物材料的含水介质的胶凝或粘度增加的方法,并且在含水介质中,在羧酸酯水解酶存在下易于粘度增加或胶凝化的方法包括 用羧酸酯水解酶(EC 3.1.1)处理水性介质; 和氧化酶(EC 1.10.3)和/或过氧化物酶(EC 1.11.1); 在适合与氧化酶和/或过氧化物酶一起使用的氧化剂的存在下。 可以通过该方法获得的胶凝产品可以被干燥或脱水以得到可用作吸收剂的吸收剂如体液等吸收性介质的产品。 特别是,使用果胶激酶(EC 3.1.1.11)和漆酶(EC 1.10.3.2),可以从甜菜中获得果胶材料。