摘要
通过单因素试验和均匀试验设计,确定了米曲霉R519产木聚糖酶.结果表明:米曲霉R519产木聚糖酶最适反应条件是温度为60℃,pH值为4.5,酶液用量与底物用量比值为1/9.酶学性质Co2+和Fe2+对酶具有强烈的激活作用,Ca2+和Zn2+具有强烈的抑制作用.
Experiments were carried out to probe into the characteristics of Xylanase. The result showed that the oplhnum conditions for such measurement were 50℃, pH 4. 5 and the ratio of x;ylanase to substrate was 1 ： 9. The xylanase was actived strongly by Co^2＋ and Fe^2＋ , was inhibited strongly by Ca^2＋ and Zn^2＋.
出处
《安康学院学报》
2008年第4期88-90,共3页
Journal of Ankang University
关键词
米曲酶
木聚糖酶
酶学性质
Aspergillus oryzae
xylanase
enzymology characteristics
