Stropharia rugosoannulata protein powder and preparation method thereof

The invention discloses a preparation method of Stropharia rugosoannulata protein powder. The method comprises the following steps of S1, adding water into Stropharia rugosoannulata powder according to a material-liquid ratio of 1: 30 g/mL, and regulating the pH value to 12 to obtain a material to be extracted; S2, extracting the material to be extracted for 10-30 minutes under the conditions thatthe ultrasonic power is 120-160 W and the ultrasonic temperature is 30-50 DEG C, performing centrifuging, and taking supernate, so as to obtain a protein crude extracting solution; and S3, treating the protein crude extracting solution to obtain the Stropharia rugosoannulata protein powder. The invention further discloses the Stropharia rugosoannulata protein powder. The method has the beneficialeffects of obtaining and improving the processing characteristics of the Stropharia rugosoannulata protein powder in high-temperature and alkaline environments. 本发明公开了一种大球盖菇蛋白粉的制备方法，包括以下步骤：包括以下步骤：S1、向大球盖菇粉中按料液比为1:30g/mL加水后调节p