【摘要】 研究了里氏木霉LW1所产纤维素酶的主要酶学性质。结果表明,该纤维素酶的最适温度为50℃,最适pH值为4.8;在30～50℃,pH 4.0～6.0范围内有较高的稳定性;90℃处理15 min,酶粉的CMC酶活和FPA酶活保存率分别为38.66%和52.68%;Ca2+、K+、Na+、Mg2+离子对酶活有激活作用,Mn2+、Zn2+、Cu2+离子有抑制作用。更多还原

【Abstract】 Enzymatic characteristics of the crude enzyme from Trichoderma Reesei LW1 were studied.The optimal conditions for enzymatic reaction were 50℃,and pH value were 4.8;showed a high stability at temperature 30～50℃,pH 4.0～6.0;stayed 15 min at 90℃,CMCase could be held 38.66%,and FPase can be held 52.68%;Ca2+、K+、Na+、Mg2+ were the activators and Mn2+、 Zn2+、Cu2+ were the inhibitors of the enzyme.更多还原