The invention relates to an efficient extraction method of
inonotus obliquus total triterpenes and a preparation method of
fine powder of the
inonotus obliquus total triterpenes. The method comprises the following steps: crushing an
inonotus obliquus raw material to obtain inonotus obliquus coarse
powder;
grinding the inonotus obliquus coarse
powder in a liquid-
nitrogen low-temperature environment by using a
ball mill to obtain inonotus obliquus micropowder; preparing an inonotus obliquus suspension from the inonotus obliquus micropowder; carrying out shearing ultrafine crushing treatment on the inonotus obliquus suspension to obtain an inonotus obliquus ultrafine
powder suspension; centrifuging the inonotus obliquus ultrafine
powder suspension to obtain a precipitate, and
drying the precipitate to obtain inonotus obliquus ultrafine powder; placing the inonotus obliquus ultrafine powder in a
steam explosion test device to obtain ultrafine wall-broken powder; adding
ethanol into the ultrafine wall-broken powder, and carrying out vacuum combined ultrasonic
microwave-assisted extraction to obtain an inonotus obliquus total-
triterpene crude extract; and carrying out vacuum concentration to obtain an inonotus obliquus total-
triterpene concentrated lixiviate. According to the method, the
ethanol dosage and the extraction time are reduced under the same extraction rate, the purity of the obtained triterpenes is high, and the
biological activity of the inonotus obliquus total triterpenes is high.