Preparation method of steamed rhizoma polygonati

Abstract

The invention discloses a preparation method of steamed rhizoma polygonati. The preparation method of the steamed rhizoma polygonati comprises the following steps: removing impurities and fibrous roots from fresh rhizoma polygonati, completely washing and airing for 12 to 36 hours, putting into a drying oven with the temperature of 30 to 50 DEG C, and drying for 12 to 36 hours to enable the watercontent to reach 25 to 40 percent; taking outing and cutting into thick sheets of 5 to 10 mm, and drying in a drying oven with the temperature of 40 DEG C for 12 to 36 hours to enable the water content to reach 15 to 24 percent; putting the dried rhizoma polygonati sheets into a steaming container, steaming for 4 to 8 hours and taking out; drying by hot air with the temperature of 55 to 80 DEG C for 10 to 20 hours to enable the water content to reach 12 to 15 percent to obtain one-steamed and one-dried rhizoma polygonati; repeating the above operation for four times to obtain five-steamed five-dried rhizoma polygonati; putting the five-steamed five-dried rhizoma polygonati into the steaming container, steaming for 4 to 8 hours and taking out; and drying by hot air with the temperature of 70 to 80 DEG C to enable the water content to reach 7 percent to obtain six-steamed six-dried rhizoma polygonati, wherein the 5-HMF content of the product is more than or equal to 0.6 mg / g. According to the preparation method provided by the invention, the steaming process is optimally designed and stage-by-stage processing treatment is adopted, so that the rhizoma polygonati product has more excellent quality, has taste and natural component content which are more excellent than those of the prior art, and has remarkable health application advantage.

Description

technical field [0001] The invention relates to a processing method of steamed polygonatum, and belongs to the technical field of processing traditional Chinese medicinal materials. Background technique [0002] Polygonatum, Huangjing, POLYGONATI RHIZOMA is a lily plant. This product is the dried rhizome of Polygonatum kingianum Coll.et Hemsl., Polygonatum sibiricum Red. or Polygonatum cyrtonema Hua. According to different shapes, it is commonly called "rhubarb essence", "chicken head polygonatum essence" and "ginger-shaped polygonatum essence". [0003] [nature, flavor and meridian distribution] sweet, flat. Return spleen, lung, kidney channel. [0004] [Functions and Indications] Invigorate qi and nourish yin, invigorate the spleen, moisten the lungs, and nourish the kidneys. For spleen and stomach qi deficiency, body fatigue and fatigue, insufficient stomach yin, dry mouth and lack of food, dry cough due to lung deficiency, labor cough and hemoptysis, insufficient esse...

AI Technical Summary

Problems solved by technology

[0008] The processing characteristics of sealwort decoction pieces and wine sealwort, on the one hand, limit its application scope to the traditional application effects of nourishing qi and nourishing yin, invigorating the spleen, and nourishing the lungs, and the efficacy still has potential for excavation; on the other hand, the traditional processing methods limit the The edible health care value of Rhizoma Polygonatum, edible convenience, edible mouthfeel etc. still need to be further improved

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