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Method for freeze-drying radix salvia miltiorrhiza

A technology of vacuum freeze-drying and salvia miltiorrhiza, applied in the direction of drying solid materials, drying solid materials without heating, drying, etc., can solve the problems of high labor cost, heavy workload, quality control, etc., to improve the quality of medicinal materials and reduce manpower cost, avoiding the effect of heavy workload

Inactive Publication Date: 2021-08-13
甘肃省方熙药业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current drying of traditional Chinese medicine requires manual sorting, bundling, kneading, drying, and drying in the drying room during the production process. The workload is heavy, the cycle is long, the drying efficiency is low, and the labor cost is high, which greatly increases the cost of Chinese medicine decoction pieces.
[0004] Salvia miltiorrhiza adopts the existing drying technology in the drying process, and the active ingredients such as plant protein, microorganisms, and volatile oil will be destroyed. According to relevant statistics, the efficacy of fresh Chinese medicine is several times to dozens of times that of dry Chinese medicine; It is easy to be polluted during the drying process, and the content of ash, microorganisms, and heavy metals is likely to exceed the standard; Chinese herbal medicine pieces are also easily affected by factors such as transportation, storage, and preservation, which not only reduces the clinical efficacy of Chinese medicine, but also makes Chinese patent medicines that use herbal pieces as raw materials The quality of the

Method used

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  • Method for freeze-drying radix salvia miltiorrhiza

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for freeze-drying salvia miltiorrhiza, comprising the following steps:

[0023] Remove the soil and fibrous roots of the harvested fresh salvia miltiorrhiza, wash it clean, and slice it with a thickness of about 2.5mm, then place it in a freeze dryer with a stacked thickness of ≤20mm, first pre-freeze at -10°C for 5 hours, and then set the vacuum degree Under the condition in the range of 63-65Pa, control the temperature from -40°C to 45°C for vacuum drying in stages, select the heating rate as 10°C / h, and automatically dry the salvia miltiorrhiza; the specific stage-by-stage temperature and holding time are as follows :

[0024] One stage: -40℃, temperature 3h

[0025] Second stage: -35℃, temperature 2h

[0026] Three stages: -30℃, temperature 2h

[0027] Four stages: -25℃, temperature 3h

[0028] Five stages: -20℃, temperature 2h

[0029] Six sections: -15℃, temperature 3h

[0030] Seven stages: 0℃, temperature 2h

[0031] Eight sections: 5°C, temperat...

Embodiment 2

[0040] A method for freeze-drying salvia miltiorrhiza, comprising the following steps:

[0041] Remove the soil and fibrous roots of the harvested fresh salvia miltiorrhiza, wash it clean, and slice it with a thickness of about 2.5mm, then place it in a freeze dryer with a stacked thickness of ≤20mm, first pre-freeze at -20°C for 5 hours, and then set the vacuum degree Under the condition in the range of 64-70Pa, control the temperature from -40°C to 45°C for vacuum drying in stages, and choose a heating rate of 15°C / h to automatically dry the salvia miltiorrhiza; the specific temperature and duration of staged processing are as follows:

[0042] One stage: -40℃, temperature 3h

[0043] Second stage: -35℃, temperature 2h25min

[0044] Three stages: -30℃, temperature 2h

[0045] Four sections: -25℃, temperature 2h

[0046] Five stages: -20℃, temperature 2h

[0047] Six sections: -15℃, temperature 3h

[0048] Seven stages: 0℃, temperature 2h

[0049] Eight sections: 5°C, t...

Embodiment 3

[0058] A method for freeze-drying salvia miltiorrhiza, comprising the following steps:

[0059] Remove the soil and fibrous roots of the harvested fresh salvia miltiorrhiza, rinse it, slice it into slices with a thickness of about 2.5mm, and place it in a freeze dryer with a stacked thickness of ≤20mm. First, pre-freeze at -5°C for 5 hours, and then set the vacuum degree Under the condition of 69-74Pa, control the temperature from -40°C to 45°C for vacuum drying in stages, select the heating rate as 20°C / h, and automatically dry the salvia miltiorrhiza; the specific drying temperature and treatment time for stage-by-stage treatment as follows:

[0060] One stage: -40℃, temperature 3h

[0061] Second stage: -35℃, temperature 2h

[0062] Three stages: -30℃, temperature 3h

[0063] Four stages: -25℃, temperature 3h

[0064] Five stages: -20℃, temperature 2h

[0065] Six sections: -15℃, temperature 3h

[0066] Seven stages: 0℃, temperature 2h

[0067] Eight sections: 5°C, t...

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Abstract

The invention discloses a method for freeze-drying radix salvia miltiorrhiza, and belongs to the technical field of traditional Chinese medicinal material processing. The method comprises the following steps of, removing soil and fibrous roots from harvested fresh radix salviae miltiorrhizae, washing the radix salviae miltiorrhizae, slicing the radix salviae miltiorrhizae until the thickness is 2-3mm, pre-freezing the radix salviae miltiorrhizae for 3-6 hours at the temperature of-20 to-5 DEG C, putting the radix salviae miltiorrhizae into a freeze dryer, setting the vacuum degree to be 5-100Pa, controlling the temperature from -65 - -30 DEG C to 40-50 DEG C, and carrying out staged vacuum drying treatment to obtain the freeze-dried radix salviae miltiorrhizae. The method can retain the effective components and curative effects of traditional Chinese medicinal materials to the greatest extent, avoids the defects of large workload, long period, low drying efficiency, high labor cost and the like of a traditional drying method, and can directly reduce the labor cost.

Description

technical field [0001] The invention belongs to the technical field of processing traditional Chinese medicinal materials, and in particular relates to a method for freeze-drying salvia miltiorrhiza. Background technique [0002] Salvia miltiorrhiza has the effects of promoting blood circulation and removing blood stasis, promoting menstrual flow and relieving pain, clearing away heart-fire and relieving restlessness, cooling blood and eliminating carbuncle. For chest pain and heart pain, epigastric and hypochondriac pain, lump in the abdomen, heat arthralgia pain, vexation and insomnia, irregular menstruation, dysmenorrhea, sore swelling and pain. [0003] The current traditional Chinese medicine drying process requires manual sorting, bundling, kneading, drying, and drying in a drying room. The workload is heavy, the cycle is long, the drying efficiency is low, and the labor cost is high, which greatly increases the cost of Chinese medicine decoction pieces. [0004] Salv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B5/06
CPCF26B5/06
Inventor 方云龙方林
Owner 甘肃省方熙药业科技有限公司
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