What are the preservation methods of four commonly used Chinese medicines?

1, Chinese herbal medicines containing starch, such as Chinese yam, Fritillaria, Alisma orientalis, Radix Puerariae, Radix et Rhizoma Rhei, Radix Glehniae, Radix Codonopsis, etc. , containing starch, protein, amino acids and other ingredients. These medicinal materials are usually sealed with double-layer nontoxic edible plastic bags and then stored in lime tanks, jars or jars.

2. Codonopsis pilosula, Asparagus, Anemarrhena asphodeloides, Polygonatum odoratum, Rehmannia glutinosa, Polygonatum sibiricum and other sugar medicinal materials. Easy to absorb moisture, saccharify and sticky, leading to mildew and deterioration. Therefore, this kind of medicinal materials should be fully dried first, and then put into double-layer non-toxic edible plastic bags and stored in sealed cylinders, bottles, cans and jars, or the plastic bags can be sealed and stored in freezers.

3. Medicinal materials containing volatile substances, such as Herba Asari, Radix Angelicae Dahuricae, Radix Achyranthis Bidentatae, Radix Aucklandiae, Chinese rose, rose, Fructus Citri Sarcodactylis, etc., contain volatile oil and should not be exposed to the air for a long time. Otherwise, due to temperature, humidity, oxygen, light and other factors, it is easy to cause discoloration, gas loss and oil loss, resulting in a crunchy feeling. Therefore, this kind of medicinal materials should be packed in non-toxic edible plastic bags, with a small amount of charcoal in the bags and stored in a dry place away from light. It can also be stored in a sealed container to prevent moisture, dryness, oil loss and mildew.

4. Fruit and seed medicinal materials, such as almond, croton, Gordon Euryale seed, walnut kernel, platycladi seed, lotus seed meat, etc., contain starch, fat, sugar, protein and other ingredients. Under the condition of high temperature, their oil is easy to seep out, causing oil spots and stains on the surface of medicinal materials, causing deterioration, corruption and oil loss. Therefore, this kind of Chinese herbal medicine should not be stored in high temperature places, let alone baked with fire, but should be stored in ceramic cans, metal boxes and glass bottles.