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优良生淀粉酶产生菌Asp.882的研究第Ⅱ报——酶性质及动力学初探 被引量:4

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摘要 报导了用新方法选育的优良生淀粉糖化酶产生菌Asp.882的酶性质及动力学情况。实验证明它对多种生淀粉有较强的分解能力;顺序是:糯米>小米>大米>小麦>木薯>玉米>甘薯>马铃薯。酶最适反应pH为3.0~4.0,45℃保温30分钟不失活,2%葡萄糖对酶有抑制作用。酶作用于大米粉的米氏常数是1.3%。酶曲产生淀粉糖化酶达230~245u/g(pH3.6,40℃),蛋白酶3000~4000u/g,液化酶6~7u/g,纤维素酶20~25u/g。□(谢敏)
出处 《酿酒科技》 1992年第5期27-29,共3页 Liquor-Making Science & Technology
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