Study on extraction of peanut protein hydrolysate by alcalase
The extraction of peanut protein hydrolysate from cold pressed peanut cake by Alcalase.The effects of temperature,pH value,enzyme/substrate,liquid-material ratio and hydrolysis time on extraction efficiency of peanut protein hydrolysate were studied.The optimum parameters of the extraction were established by the orthogonal test.The results were as follows: temperature 55 ℃,pH9.0,enzyme/substrate 0.8%,hydrolysis time 3 h and liquid-material ratio 7:1.On this conditions,the extraction efficiency of peanut protein hydrolysate was 81.32%.