摘要
植物种子萌发时 ,其幼苗生产的酸性植酸酶的最适PH值在 5.0附近 ,最适温度在 45℃附近。酶对离子的适应范围较宽。Ca离子对酶活性有明显的激活作用 ,Cu和Zn离子对酶活性有明显的抑制作用 ,抑制 50 %酶活性的Cu和Zn离子的浓度分别为 0 .8mmol/L和 1 .0mmol/L。酶应用的最好条件应该在PH值 5.0 ,温度
The phytase produced in seeding is at the most adapt PH 5.0, the most adapt temperature 45℃. The phytase is extensive adept to ions. The phytase is activated by Ca and inhibited Cu and Zn. The concentration of Cu and Zn are about 0.8mmol/L and 1.0mmol/L when phytase activation of 50% is inhibited. The phytase is maintained activation longer in PH 5.0.
出处
《青海草业》
2001年第2期6-8,共3页
Qinghai Prataculture
