Extraction method for rice protein power for increasing protein content

The invention provides an extraction method for rice protein power for increasing protein content. The method comprises the following steps: (1) soaking; (2) pulp mixing; (3) separating; (4) enzymolysis; (5) primary separation; (6) washing; (7) secondary separation; (8) drying; and (9) crushing. The separating degree of rice protein is higher by means of the operating steps of separating rice proteins and rice starch, carrying out centrifugal filtration for separation and degreasing, collecting the rice proteins in an increased manner by means of enzymolysis and finally carrying out primary separation, washing, secondary separation and the like, so that extraction of the rice protein powder is increased. 本发明提供种加大蛋白质含量的大米蛋白粉提取方法，通过以下步骤（1）浸泡（2）调浆（3）分离（4）酶解（5）次分离（6）水洗（7）二次分离（8）干燥（9）粉碎，先对大米蛋白和大米淀粉进行分离，然后通过离心过滤进行分离脱脂，在利用酶解加大对大米蛋白的收集，最后，通过次分离，水洗，二次分离等操作步骤使得大米蛋白的分离层度更高，从而加大大米蛋白粉的提取。