Chinese herbal medicine collection and processing storage

The efficacy of Chinese herbal medicine is closely related to the place of production, the time of collection, and the processing and storage methods.
1 Collection of Chinese Herbal Medicine In general, the most appropriate period for the collection of Chinese herbal medicine is the period when the active ingredient content of the plant medicine is the most abundant. China has a vast territory, a complex terrain, and a wide range of climatic differences. The growth season of drugs is sooner or later. The efficacy of drugs is strong or weak. Therefore, according to the local climate conditions and plant growth conditions, select the appropriate harvest season, according to the plant's children, leaves, flowers, roots, stems and other different parts of the drug and different growth and maturity, select the appropriate collection time in order to ensure the drug effect. Must not rigidly adhere to a season and die.
1.1 Whole plants should generally be harvested during the flowering period when they are vigorously growing, such as mint, motherwort, agrimony, small cockroach, and quid, etc. The thin stem or short can be uprooted, such as plantain, Vason, Tusan, etc., individual must be tender seedlings, should be more appropriate before the flowering period.
1.2 Roots and rhizomes are generally collected in the late autumn and early spring. At this time, the leaves of the normal plants have withered, but the new shoots have not yet germinated, and the nutrients and effective components are accumulated in the roots or stems, so the efficacy is also high, such as Astragalus, Fritillaria, Lily, and rhubarb.
1.3 Leaves are usually taken when flowers are still in bloom or in full bloom, because this is the peak period for the growth of the leaves of plants and animals, and the leaves are thick, such as lotus leaves, big leaves and so on. However, there are exceptions, such as mulberry leaves must be harvested after the autumn frost.
1.4 Flowers are generally collected when they are in bloom or in full bloom. Such as inflorescences, wild chrysanthemums, safflowers, etc. Usually, the flowering period is short. If the flowering time is too long, the petal will dry up, and it will be scattered or discolored easily. The flower buds are used for flower buds and should be collected when the flower is not open. The weather should be sunny, so that it can be dried easily.
1.5 Fruits should be collected when the fruit matures. Such as fennel, forsythia and so on. However, a few varieties such as green peony, Gorgon, and ebony are collected when they are immature.
1.6 Kinds of kernels should generally be collected at full maturity. Such as peach kernel, Bai Ziren, vegetable dumplings and so on. Individual seed medicines, such as yamuzi and immature peas, are easy to splurge when matured for too long and should be collected when they have not yet cracked.
1.7 Bark is usually collected at the turn of spring and summer. At this time, the plant is growing vigorously. At this time, the plant's slurry is large, the efficacy is high, and the bark peels easily.
1.8 Resins and gums should be selected in the dry season after the rainy season, such as frankincense, myrrh and so on. When collecting Chinese herbal medicine, it is necessary to have a plan, dig a kind, pay attention to protect the source of medicine. When digging roots or rhizomes of perennial herbs, such as Codonopsis pilosula, Fritillaria, Astragalus membranaceus, etc., it is necessary to adopt large reserves and stay small and not to “dissaplish the light”, otherwise it will cause adverse consequences of “digging less, digging and digging smaller”. .
2 Processing storage should be based on local conditions according to the local conditions. It should be processed on site and kept properly. Otherwise, on the one hand, because the dried plants continue to metabolize, the ingredients change and the efficacy decreases. On the other hand, there is waste due to mildew and erosion caused by stacking together.
2.1 Dried up on the beach, the ground, or the scaffolding and the paving, and spread the herbs to dry.
2.2 Dry the herbs hanging or spread in a cool, dry and ventilated place. This method applies to flowers and aromatic odor medicines, such as golden flowers, chrysanthemum, mint and so on.
2.3 Drying Place herbs near a fire wall, stove, or in a drying room. Some herbs should be processed before drying, such as purslane, wazon, and soil, etc. First, they should be simmered with boiling water and then sun dried. The root bark and bark herbs should be dried and dried after being fresh.
2.4 The dried and preserved medicinal materials should be stored in a cool, dry, air-flowing house, suspended or stratified. Herbs that are prone to insects should pay attention to sun exposure, such as codonopsis, coltsfoot flowers, jujube, etc., oily and mildewy herbs, should be placed in a cool dry place, such as angelica, habitat, quail, etc., highly poisonous drugs should be a single package, another release, with Prevent accidents, such as Aconitum, Tian Xianzi and so on.

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