Study on extraction technology of pea protein isolate

The influential factors of the extraction of pea protein isolate were studied using sodium hydroxide as the extracting menstruum,and the improved ultrasonic technology compared with the traditional technology.The optimal solid-liquid ratio,pH,extraction temperature and extraction time were showed to be 1:25,9.0,45℃ and 50min under whichis the extraction ratio was 81.82%,and the protein content was 91.23%.The extraction ratio could get to 83.21%,which was over the traditional technology.The optimal solid-liquid ratio,power and time were 1:15,300W and 30min.