摘要
利用黄原胶降解菌(Paenibacillus lautus)XD2-8制备黄原胶降解酶,并对其酶学特性做了初步的研究。结果显示,该酶的最优酶促反应条件为:温度35℃、pH6.0、底物浓度5g/L;葡萄糖对该酶促反应具有抑制作用,且葡萄糖浓度越大抑制作用越强。
A xanthan-degrading enzyme was prepared from Xanthan-degrading bacteria Paenibacillus lautus XD2-8,and its enzymological characteristics were preliminarily studied as well in this paper.The results showed that the optimum temperature is at 35 ℃,the optimum pH is 6.0 and the optimum substrate concentration is 5 g/L.Glucose has an inhibitory action on the enzymatic reaction,and the action was enhanced with the increase of glucose concentration.
出处
《食品科技》
CAS
北大核心
2010年第4期25-29,共5页
Food Science and Technology
基金
国家自然科学基金项目(20476086)
国家“863”重点资助项目(2006A030203)
关键词
黄原胶降解酶
酶促反应
黄原胶
葡萄糖
xanthan-degrading enzyme
enzymatic action
xanthan gum
glucose
