Stable liquid catalase compsns. - contg. microbicide as preservative

摘要

Catalase compsn. according to the Parent Patent comprise aq. solns. or suspensions contg. (a) 0.5-10 wt. % anionic surfactant, (b) 2-50% nonionic surfactant and (c) 500-500,000 Iu/ml of catalase, with an (a) : (b) wt. ratio of 1:1-100. The improvement lies in the fact that the compsns. also contain 0.0005-1 (pref. 0.05-0.5) wt. % of a microbicide. The microbicide acts as a preventive (esp. when the compsns. contain no lower alcohol) without impairing the activity of the catalase.