The invention relates to the technical field of
processing dried
medicinal herbs, in particular to a
processing method of rhizoma polygonati. The
processing method comprises the following steps that step 1, a wooden cage is placed in a
copper pot containing water, sticky rice is put in the wooden cage, the rhizoma polygonati is put on the sticky rice, and the
copper pot is heated to steam the rhizoma polygonati for 6-8 h; step 2, the steamed rhizoma polygonati is taken out and aired for 6-8 h at the temperature of 20-25 DEG C in a ventilating shade place; the step 1 and the step 2 are repeatednine times, and a cooked rhizoma polygonati product is obtained through processing. The nine-
steaming nine-airing technology is adopted, in the
steaming process, the sticky rice is put in the woodencage, the crude rhizoma polygonati is put on the stick rice and steamed, and the
copper pot replaces a traditional iron pot; in the airing process, the rhizoma polygonati is always aired in the ventilating shade place, the temperature is strictly controlled, and
exposure to the blazing sun is avoided, so that the
irritation of the rhizoma polygonati is removed after processing, the content of total saponins is significantly increased, and the effects of the rhizoma polygonati on blood glucose regulation, immune improvement,
tumor resistance and
memory improvement are effectively improved.