The present application relates to the technical field of
traditional Chinese medicine fermentation preparation, and discloses a method for preparing
Gastrodia tuber oral liquid by using
brewing yellow water and synergistic
fermentation of
sorghum. The method is as follows: after crushing
Gastrodia tuber, it is mixed with
sorghum and cooked, and then the composite small koji for
brewing is added for saccharification treatment; then the saccharified mixture is placed in a
fermentation tank for initial fermentation, and then yellow water is added for further fermentation; finally, the liquid produced in the fermentation process is collected, filtered and clarified, sterilized and packaged to obtain
Gastrodia tuber oral liquid. Through the synergistic fermentation of Gastrodia tuber and
sorghum, with the saccharification of the composite small koji for
brewing and the synergistic effect of the microbial
community and
flavor substances of yellow water, the
alcohol content of the oral liquid is controlled at about 8 degrees, which can further promote the full
dissolution and conversion of active ingredients of Gastrodia tuber, significantly improve the
bioavailability of the product, and improve the
flavor level. The process makes full use of the by-product yellow water of brewing, and the product has the
efficacy of Gastrodia tuber and unique
flavor, and has significant industrial value.