The invention provides Chinese astilbe
herb ultra-
fine powder decoction pieces which comprise Chinese astilbe
herb ultra-
fine powder and auxiliaries, and the particle size of the Chinese astilbe
herb ultra-
fine powder is smaller than or equal to 75 microns.The invention further provides a preparation method of the Chinese astilbe herb ultra-fine
powder decoction pieces.The method includes the steps that 1, the Chinese astilbe herb decoction pieces are crushed and sieved, and a Chinese astilbe herb plus
sieve component and a Chinese astilbe herb minus
sieve component are obtained; 2, the obtained minus
sieve component is subjected to
superfine grinding, and the Chinese astilbe herb ultra-fine
powder is obtained; 3, the Chinese astilbe herb ultra-fine
powder is mixed with the auxiliaries, and the Chinese astilbe herb ultra-fine powder decoction pieces are obtained.According to the Chinese astilbe herb ultra-fine powder decoction pieces, the
dissolution rate of the effective ingredient
bergenin in Chinese astilbe herb ultra-fine powder particles is remarkably improved, the
dissolution rate can reach 35.12 mg / g to the maximum, the problem that it is difficult to transfer main ingredients, particularly the
bergenin in Chinese astilbe herbs is solved, and thus
bioavailability of medical materials is improved.