Fresh-keeping method or storage method of fresh motherwort

Abstract

The invention discloses a fresh-keeping method or storage method for fresh Leonurus japonicas. The method comprises the following steps: a, taking the fresh Leonurus japonicas, pre-cooling at the temperature of minus 50-minus 30 DEG C for 1-12h; b, packaging and sealing the fresh Leonurus japonicas subjected to pre-cooling in the step a; c, performing freezing storage on the fresh Leonurus japonicas sealed in the step b. According to the method provided by the invention, a good fresh-keeping effect can be achieved without heating the fresh Leonurus japonicas in hot water and cooling the fresh Leonurus japonicas, the content of stachydrine hydrochloride is basically kept unchanged within a longer period of time, the fresh-keeping time is long, the content of the stachydrine hydrochloride is still 1.00% or above when the fresh Leonurus japonicas is stored for 180 days, and the method has the advantages of being few in procedures, simple and convenient for operation and the like, and has a good industrial application value.

Description

technical field [0001] The invention relates to a preservation method or a storage method of fresh motherwort. Background technique [0002] Motherwort is a commonly used traditional Chinese medicinal material. Its effects are promoting blood circulation, regulating menstruation, diuresis and reducing swelling. [0003] According to the explanation or definition of "Chinese Pharmacopoeia" 2010 edition, motherwort (Leonurus japonicas Houtt.) belongs to Labiatae, and is divided into fresh motherwort and dry motherwort; fresh motherwort is harvested from spring seedlings to early summer flowering, and placed in a cool Store in a damp place; dry motherwort is harvested when the stems and leaves are lush in summer, and the flowers are not blooming or just blooming, dried in the sun, or cut into sections, and stored in a dry place. [0004] Studies have shown that fresh and dried medicines of the same variety have different properties, flavors and efficacy. Motherwort is a kind ...

AI Technical Summary

Problems solved by technology

[0006] Traditional fresh medicine storage methods mainly include natural storage method, sand storage method, sand planting method, refrigerator storage method, plastic film preservation method, transplanting method, etc. Modern preservation storage methods mainly include: limited atmosphere storage, controlled atmosphere storage, Irradiation storage, vacuum freeze-drying, frozen storage, and sealed storage; for example: the fresh motherwort storage method provided by the 2010 edition of the "Chinese Pharmacopoeia" is to store in a cool and humid place, and its fresh-keeping effect is not ideal. The content drops seriously, and the fresh-keeping time is short; in order to avoid the serious decline of active ingredients in fresh motherwort, Chinese patent CN 1456110A discloses a fresh-keeping method of fresh motherwort including the steps of adopting, repairing and cleaning, blanching, cooling, quick-freezing, packaging, and refrigerating. method, but this method requires fresh motherwort to be blanched in 90-100°C water for 10-100 seconds, and immediately put into cold water to cool after blanching, and then perform steps such as quick-freezing, packaging, and refrigeration, so as to effectively improve the fresh-keeping effect of fresh motherwort , it has the disadvantages of many process steps and complicated operation

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