富γ-氨基丁酸(GABA)金川发芽红糙米制备工艺

摘要

γ-氨基丁酸(GABA)是一种天然存在非蛋白质的氨基酸,具有多种特殊的生理功能,在发芽糙米中含量较高.本试验以金川红糙米为原料,以GABA含量为研究对象,通过正交试验得到富集GABA的最佳红糙米发芽工艺条件为浸泡温度为25℃、浸泡时间2h、发芽时间为48h、发芽温度40℃、CaC12溶液浓度1mg/mL、纤维素酶溶液浓度0.64mg/mL、谷氨酸溶液浓度为1.5mmol/L.此时GABA含量可达到46.3436mg/100g,其结果约为发芽前的2倍.%γ-aminobutyric acid (GABA) is a kind of water soluble nonprotein amino acid which has high physiological activity.Amount of GABA was produced in brown rice germination process.Jinchuan red brown rice as raw material,the content of GABA as research object,orthogonal experiment showed that the best concentration of GABA red rice germination conditions were soaking temperature 25℃,soaking time 2h,the germination time 48h,germination temperature 40℃,concentration of CaCl2 lmg/mL,cellulase concentration 0.64mg/mL,glutamate concentration 1.5mmol/L At this time,the content of GABA can reach 46.3436 mg/100 g,and the result was about 2 times before germination.