2. Li Shizhen's Compendium of Materia Medica in the Ming Dynasty contained 1892 kinds of drugs, among which 330 kinds of Chinese medicines were recorded as "xiuzhi", and the processing experience of the previous generation was summarized. Among 330 kinds of drugs, there are 144 tablets containing Li Shizhen's own processing experience or opinions. Many of them, such as Radix Aucklandiae, Rhizoma Alpiniae, Fructus Leonuri, Liquidambar formosana, Camphor, etc. , are recorded by Li Shizhen's personal experience, and most of them are still used in processing and production. Such as Pinellia ternata, Arisaema arisaematis, Arisaema cum bile, etc. The Canning Dafa written by Miao Xiyong in Ming Dynasty is the second monograph on drug processing in China, which contains 439 kinds of drug processing methods. The source, collection time, identification of advantages and disadvantages, processing accessories, operation procedures and drug storage of each drug are briefly described. Most of the contents can reflect the actual social production at that time, which was developed on the basis of predecessors. The processing methods of predecessors were summarized as: Lei Gong.
3. In Qing Dynasty, Zhang Zhongyan's Guide to Repairing Things is the third monograph in China, which contains 232 kinds of drugs and systematically describes various processing methods, most of which are from Zheng Bencao and Compendium of Materia Medica, but Zhang made further induction, sorting out and detailed analysis, which is even more striking. Zhang thinks that processing is very important in traditional Chinese medicine. He said: "If the processing is unknown and the medicinal properties are uncertain, the decoction will be inaccurate and the symptoms will not be proved." It has played a role in the processing theory, such as: "Evodia rutaecarpa juice can suppress bitter cold, help stomach qi, pig bile can purge gallbladder fire, reach wood depression, cow bile can remove dryness, baking is neutral, frying is fragrant ...". 4. Due to the long-term unremitting efforts of the old experts in the processing industry, people's understanding of the importance of the processing discipline has deepened, which has gradually attracted the attention of leaders at all levels and relevant management departments. During the Ninth Five-Year Plan and the Tenth Five-Year Plan, the state invested a certain amount of money to conduct a demonstration study on the standardization and quality standards of the processing technology of Chinese herbal pieces. The smooth implementation of these projects has played a good role in standardizing the quality standards of Chinese herbal pieces and stabilizing the clinical efficacy of Chinese medicine. Exploration and application of new equipment and new technology In recent years, many experts and scholars have explored the application of new equipment and new technology and improved some traditional processing methods to meet the requirements of the times. For example, far infrared rays and microwaves have the characteristics of strong penetration, fast heating speed and good sterilization effect. Processing chicken's gizzard-membrane with far infrared rays oven or microwave oven is time-saving, hygienic, convenient and does not need grading. The traditional processing method of frankincense is to spray vinegar after frying. Impurities are not completely removed, which is easy to stick together and inconvenient for dispensing. After the process was improved, the frankincense was crushed and put into a pot, heated with appropriate amount of water, and stirred until it was completely melted and boiled, and the irritating smoke escaped with water vapor. After the smoke is diluted, a certain amount of rice vinegar is poured in, stirred slightly, poured out and cooled, and crushed for later use. The treatment temperature of this method will not be too high, the removal of impurities will not affect the curative effect, and the temperature will not stick together. Study on the principle of "pharmacy" in the processing of traditional Chinese medicine "pharmacy" is one of the important functions of processing, and the mechanism of processing "pharmacy" can be summarized as: heating processing to reduce toxicity. Including destroying toxic components or changing the structure by heating to reduce toxicity; Reduce toxicity by heating and processing into cream; Heat treatment is used to disperse toxic components and reduce toxicity; Heat treatment is used to denature toxic protein and reduce toxicity. Water treatment removes toxic components. In the traditional processing technology, some toxic drugs can be treated with water to remove some water-soluble toxic components and reduce toxicity. For example, mineral medicines such as mirabilite, cinnabar, realgar, sal ammonite, etc. Through different water treatment methods, some toxic components are removed, thus reducing toxicity or damage to human health.