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Recovery utilization method of dregs of water extraction and alcohol precipitation of salvia miltiorrhiza

A technology of water extraction, alcohol precipitation and Salvia miltiorrhiza, applied in the application, function of food ingredients, food ingredients containing natural extracts, etc., can solve the problems of difficult preparation and high heat sensitivity, achieve high economic value and reduce environmental pollution.

Active Publication Date: 2018-05-15
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And because the molecular weight of the highly active salvia miltiorrhiza polysaccharide is concentrated below 50KDa, it has high heat sensitivity and is difficult to prepare by ordinary drying methods.

Method used

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  • Recovery utilization method of dregs of water extraction and alcohol precipitation of salvia miltiorrhiza
  • Recovery utilization method of dregs of water extraction and alcohol precipitation of salvia miltiorrhiza
  • Recovery utilization method of dregs of water extraction and alcohol precipitation of salvia miltiorrhiza

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Take 100 kg of Danshen water-extracted alcohol-precipitated drug residues from traditional Chinese medicine pharmaceutical companies such as Shenmai Drink or Danshen Injection, add 400 kg of purified water heated to 55°C, keep the alcohol volume fraction below 10%, and stir for 10-15 minutes Until the salvia miltiorrhiza is extracted with alcohol and the drug residue is dissolved evenly. Collect the filtrate by filtration, add the filtrate to 500 kg of pure water, stir evenly, perform ultrafiltration with an ultrafiltration membrane with a molecular weight cut-off of 50KD, and concentrate by vacuum low-temperature evaporation to obtain a concentrated retentate with a solid content of about 45%. Use a spray dryer for drying, the atomizer frequency is 70Hz, the inlet air temperature is controlled at 190°C, the outlet air temperature is selected at 80°C, the feed rate is 16 kg / h, and the bottom of the tower is dried with a hammer every 10 minutes. Prevent powder from accum...

Embodiment 2

[0024] Take 100 kg of Danshen water-extracted alcohol-precipitated drug residues from traditional Chinese medicine pharmaceutical companies such as Shenmai Drink or Danshen Injection, add 400 kg of purified water heated to 55°C, keep the alcohol volume fraction below 10%, and stir for 10-15 minutes Until the salvia miltiorrhiza is extracted with alcohol and the drug residue is dissolved evenly. Collect the filtrate by filtration, add the filtrate to 500 kg of pure water, stir evenly, perform ultrafiltration with an ultrafiltration membrane with a molecular weight cut-off of 50KD, and concentrate by vacuum low-temperature evaporation to obtain a concentrated retentate with a solid content of about 45%. Use a spray dryer for drying, the atomizer frequency is 70Hz, the inlet air temperature is controlled at 180°C, the outlet air temperature is selected at 75°C, the feed rate is 16 kg / h, and the bottom of the tower is dried with a hammer every 10 minutes. Prevent powder from accum...

experiment example 1

[0026] Experimental example 1: Comparison of in vitro antioxidant properties of different molecular weight polysaccharide components of tanshinol sediment

[0027] 1 Comparison of in vitro antioxidant properties of polysaccharide fractions with different molecular weights from tanshinol sediment

[0028] 1.1 DPPH free radical scavenging activity

[0029] The samples of Danshen polysaccharides extracted by four different methods and Vc were dissolved in distilled water to prepare a series of sample solutions with different concentrations (0.20-1.2 mg / mL). Take 2mL of each sample solution and mix it with 2mL 0.20mM DPPH solution, let it stand at room temperature for 30min, and measure the absorbance value at 525nm. Calculation of DPPH free radical activity scavenging activity. see results figure 1 .

[0030] Depend on figure 1 It can be seen that, taking Vc as a control, the four fractions collected by ultrafiltration have certain DPPH free radical scavenging activities, ...

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Abstract

The invention discloses a recovery utilization method of dregs of water extraction and alcohol precipitation of salvia miltiorrhiza. The method comprises the following process steps: taking the dregsof water extraction and alcohol precipitation of salvia miltiorrhiza, adding 4 times of hot water of 55 DEG C by volume, controlling the volume fraction of alcohol to be 10% or below; performing sufficient stirring to dissolve the dregs of water extraction and alcohol precipitation of salvia miltiorrhiza, performing suction filtration to remove insoluble macromolecular polysaccharides and other solid residues; adding an equal volume of purified water to filtrate obtained after suction filtration, performing sufficient stirring and allowing the filtrate to pass through a hollow fiber membrane with the pore diameter of 50KDa to perform ultrafiltration treatment. The recovery utilization method is capable effectively and comprehensively utilizing the waste dregs of water extraction and alcohol precipitation of salvia miltiorrhiza and reducing environmental pollution, and the prepared high-activity salvia miltiorrhiza polysaccharide has the polysaccharide content of 75% and above and the crude protein content of 5% and below. In addition, the obtained high-activity salvia miltiorrhiza polysaccharide can serve as health food or a raw material and has higher economic value.

Description

technical field [0001] The invention belongs to the technical field of regeneration and utilization of traditional Chinese medicine processing waste resources, and in particular relates to a method for recovery and utilization of salvia miltiorrhiza by water extraction, alcohol precipitation and drug residue. Background technique [0002] With the development of traditional Chinese medicine and health care and the enhancement of people's health awareness, the application of Chinese herbal medicine and Chinese patent medicine is becoming more and more extensive. However, the amount of waste of traditional Chinese medicine dregs is also increasing day by day. According to incomplete statistics, the annual discharge of plant dregs in my country is as high as 30 million tons. Therefore, the treatment of medicinal residues has become a problem that cannot be ignored in the production and processing of Chinese herbal medicines and Chinese patent medicines. At present, the vast ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L33/105A23L33/125
CPCA23V2002/00A23L33/105A23L33/125A23V2200/30A23V2250/21
Inventor 戴德慧胡伟莲
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY