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In Chinese medicine, fermentation is a highly important processing technology whereby medicinal herbs are fermented under appropriate temperature, humidity, and moisture conditions by means of the action of microorganisms to enhance their original characteristics and/or produce new effects. This expands the scope of such medicines and helps them to meet the stringent demands of clinical application. Since ancient times, Chinese medicine has been made into Yaoqu to reduce its toxicity and increase its efficiency. Modern fermentation technologies have been developed on the basis of traditional fermentation techniques and modern biological technology, and they can be divided into solid fermentation, liquid fermentation, and two-way fermentation technologies according to the fermentation form employed. This review serves as an introduction to traditional fermentation technology and its related products, modern fermentation technologies, and the application of fermentation technology in the field of Chinese medicine. Several problems and challenges facing the field are also briefly discussed.
Li et al. (2020) studied this question.