How to preserve traditional Chinese medicine from mildew

1, fumigation and mildew prevention, chloropicrin, sulfur fumigation, etc. Play a role in mildew prevention. Because of their heavy pollution and residual toxicity, sulfur fumigation that has been used for hundreds of years has basically stopped using. Bitter chloride is no longer fumigated with solidified Chinese herbal medicine and aluminum phosphide, but mostly fumigated under the seal of plastic tent, with small dose, synergistic effect or combined with other methods.

2. Modified atmosphere storage is a new technology, and its principle is to adjust the gas conditions in the storage environment according to human will. Because most molds and pests are living things, most of them carry out aerobic breathing. When the storage environment is filled with 98% oxygen or CO2 gas and the oxygen content drops to 5%-2%, molds and pests will suffocate and die due to lack of oxygen. Modified atmosphere storage is based on this principle to ensure that the stored products are not moldy. Beijing Chinese Herbal Medicine Company uses carbon dioxide to reduce oxygen and kill insects. The concentration of CO2 is above 22%, and the oxygen is below 15%. After five months of storage in summer, it shows that it has good mildew-proof effect. After CO2 aeration, the contents of tangerine peel, kudzu root and licorice root were determined. The results showed that the contents of volatile oil, alkaloids, flavonoids and glycosides were not significantly different from those of the control group.

3, ethylene oxide gas sterilization ethylene oxide gas has strong diffusion and penetration. It has a good killing effect on microorganisms. Some people killed vitiligo pill's raw materials such as medicinal materials, water pills and honey pills. Under the conditions of 45℃ and 50% relative humidity, the total number of bacteria decreased by more than 98.75438+0%. The TLC packet spectrum and content of Psoralea corylifolia have obvious changes. Ethylene oxide has certain toxicity. Drugs will remain and produce toxic substances such as chloroethanol and ethylene glycol, so attention should be paid when using them.