CN-121971532-A - Processing method of rehmannia decoction pieces

CN121971532ACN 121971532 ACN121971532 ACN 121971532ACN-121971532-A

Abstract

The invention relates to the field of traditional Chinese medicine processing, and discloses a processing method of rehmannia root decoction pieces, which comprises the steps of uniformly stirring raw rehmannia root thick slices with liquid auxiliary materials (ginger juice or fresh milk), sealing and moistening, turning over periodically in the moistening process, taking the auxiliary materials as a terminal point when the auxiliary materials are absorbed completely or basically, steaming in a water-proof manner, steaming for 2-3 hours after steaming in a ginger juice way, steaming for 4-8 hours in a fresh milk way, drying after steaming to obtain decoction pieces, and cutting and drying after the fresh milk way can be mixed with steaming liquid and dried to six dryness. The method improves the absorption uniformity and the consistency among batches and reduces the rancidity risk of milk production by turning over, absorbing the criterion and warming the steaming window.

Inventors

YUAN JUNFENG
FENG RUI
YAO GUOBAO
YU TIANJUN
Deng Xiancheng

Assignees

四川兴盛源药业有限公司

Dates

Publication Date: 20260505
Application Date: 20260205

Claims (6)

1. A processing method of rehmannia root decoction pieces is characterized by comprising the following steps: S1, taking a clean dried rehmannia root thick slice, adding liquid auxiliary materials and uniformly stirring, wherein the liquid auxiliary materials are selected from ginger juice or fresh milk, and when the liquid auxiliary materials are ginger juice, 8-12 kg of ginger is added to each 100kg of dried rehmannia root thick slice to prepare the ginger juice, and when the liquid auxiliary materials are fresh milk, the mass ratio of dried rehmannia root to fresh milk is 100:20-40; S2, placing the materials obtained in the step S1 into a container for sealing and moistening, and turning over once every 0.5-8 hours in the moistening process until the liquid auxiliary materials are completely or basically absorbed by the radix rehmanniae; s3, steaming the material subjected to the moistening in the step S2 in a water-proof manner, heating the material to steam and then continuously steaming the material by using slow fire, wherein when the liquid auxiliary material is ginger juice, steaming is performed for 2-3 hours, and when the liquid auxiliary material is fresh milk, steaming is performed for 4-8 hours; S4, taking out and drying after steaming, obtaining rehmannia decoction pieces.
2. A method for preparing decoction pieces of radix rehmanniae according to claim 1, wherein the preparation of the ginger juice comprises cleaning rhizoma Zingiberis recens, mashing, squeezing juice under water pressure, squeezing rhizoma Zingiberis recens residue once more under water pressure, and mixing the two juices, wherein the ratio of ginger juice to rhizoma Zingiberis recens is 1:1.
3. The method according to claim 1, wherein when the liquid auxiliary material is ginger juice, the sealing and moistening in the step S2 is carried out for 2-4 hours at room temperature, and the liquid auxiliary material is turned once every 30 minutes.
4. The method of claim 1, wherein the liquid adjuvant is fresh milk, and the sealing and moistening in step S2 is performed at a temperature lower than 10deg.C for 24-48 hr, and the liquid adjuvant is turned over every 8 hr.
5. The method for preparing rehmannia root decoction pieces according to claim 1, wherein the "exhaustion or substantially exhaustion" in the step S2 satisfies the criteria that no free-flowing liquid auxiliary material is present in the container at the end of moistening, and no continuous visible free liquid film aggregation is present on the surface of the medicinal material when the material is turned over.
6. The method of claim 1, wherein when the liquid adjuvant is fresh milk, the liquid adjuvant is steamed in step S3, then dried slightly, mixed with the steamed solution, dried to six pieces, cut into thick slices or blocks, and dried.

Description

Processing method of rehmannia decoction pieces Technical Field The invention belongs to the technical field of processing of traditional Chinese medicine decoction pieces, and relates to a processing method of rehmannia root decoction pieces. Background The rehmannia root decoction pieces are widely applied to the clinical and preparation production of traditional Chinese medicines. Various processing routes are formed in the past for regulating the drug property of rehmannia, improving the taking palatability, reducing the uncomfortable reactions such as greasy stomach obstruction and the like, wherein the processing routes comprise ginger preparation taking ginger as an auxiliary material and milk preparation taking milk as an auxiliary material. The existing ginger preparation route generally adopts ginger juice or ginger and rehmannia to mix and heat (such as ginger juice stir-frying, ginger juice soaking, ginger wine stir-frying and the like). The route can improve the properties of processed rehmannia root products to a certain extent, but has objective limitations in modern standardized production angles, namely firstly, the moistening/soaking stage is usually judged mainly by fixed time or experience, the process control on an auxiliary material absorption state is lacked, secondly, in a mass production scene, the auxiliary material and the medicinal materials are easily contacted unevenly due to layering only after being stirred evenly, and the difference in batches is formed, thirdly, when the stir-frying is adopted, the heating is not properly controlled, the external scorching is easily generated, the local overheating is easily generated, and the appearance, the smell and the internal quality are easily fluctuated. The existing milk preparation route can be obtained by soaking and stir-frying milk or steaming the milk together with other medicinal materials, such as' soaking and sun-drying milk, stir-frying human milk, and steaming human milk mountain medicine. The common characteristic of the route is that the liquid milk is contacted with the medicinal materials for a long time and then dried or steamed, but the modern feasibility generally faces objective problems that firstly, the milk is easy to generate rancidity or microorganism risk under the condition of higher temperature or longer exposure, so that the process stability and the safety are difficult to ensure, secondly, the penetration depth and the uniformity are difficult to be compatible, the short-time penetration is possibly insufficient, the time is prolonged, and the deterioration risk is possibly aggravated, thirdly, a uniform and auditable end point criterion is lacked, and a replicable parameter system is difficult to form. In addition, a general process of mixing auxiliary materials, moistening, heat treatment (steaming/stir-frying) and drying is commonly adopted in the modern decoction piece production. However, in the rehmannia root processing scene using ginger juice or fresh milk as liquid auxiliary materials, if the moistening stage only prescribes fixed time and does not control the absorption state, the liquid state is inconsistent before the raw materials are subjected to heat treatment due to the fluctuation of water content, slice thickness and environmental temperature, so that the subsequent steaming/frying difference is amplified, and the quality between batches and in batches is finally unstable. Therefore, in the processing of rehmannia root by taking ginger juice or fresh milk as liquid auxiliary materials, a technical scheme capable of maintaining stable output under the condition of different batches of raw materials is still needed, namely, uniformity and consistency of auxiliary material absorption are improved, the risk of stir-frying out-of-focus in-process and the risk of rancidity in the milk moistening process are reduced, and a process control system suitable for standardized production is formed. Disclosure of Invention The invention aims to overcome the defects of the prior art, provides a processing method of rehmannia root decoction pieces, establishes a set of reproducible process control system under the condition that ginger juice or fresh milk is used as liquid auxiliary materials, ensures that the auxiliary materials in a moistening stage are absorbed controllably and repeatedly, improves the uniformity in batches and the consistency among batches, reduces the quality risk in a mild heat treatment window, further reduces the rancidity and deterioration risk of the fresh milk in a milk production route, and is convenient for standardized production. In order to achieve the above purpose, the present invention adopts the following technical scheme: a processing method of rehmannia root decoction pieces comprises the following steps: S1, taking a clean dried rehmannia root thick slice, adding liquid auxiliary materials and uniformly stirring, wherein the liquid auxiliary materials are select