摘要
研究了利用米糠内源性蛋白酶和谷氨酸脱羧酶富集γ-氨基丁酸(GABA)的工艺,通过正交实验得到最佳富集工艺条件是:温度44℃,料液比18∶,pH值5.2,时间6 h,反应中的限制性酶并非谷氨酸脱羧酶(GAD),而是米糠内源性蛋白酶。GA-BA的得率提高到242 mg/100 g米糠,经胶体磨作用,GABA的含量可达321 mg/100 g米糠。
A technology tbr enrichment of γ-amino butyric acid （GABA） was researched by means of endogenous protease in rice bran and glutamate deearboxylase. The optimum enrichment conditions obtained through the orthognnal experiment were： ratio of material to liquid 1：8, temperature 44℃, time 6 h, pH value 5.2, and in the reaction, the restrictive enzyme was not the glutamate decarboxylase （GAD） , but was the endogenous protease in rice bran, The output of GABA was increased to 242 mg/100 g rice bran, and the content of GABA could be up to 321 rag/100 g rice bran through the action of a colloid mill.
出处
《粮食与饲料工业》
CAS
北大核心
2006年第2期23-24,共2页
Cereal & Feed Industry
基金
项目为十五攻关滚动项目()
关键词
米糠
Γ-氨基丁酸
富集
rive bran
γ-amino butyric acid
enriehment
