Extraction method for material with antioxidant activity in peony leaves and method for preparing material into powder

A technology of antioxidant activity and extraction method, which is applied in the field of preparation of the above-mentioned antioxidant active material powder, can solve the problems of antioxidant toxicity, carcinogenicity, etc., and achieve the effects of good reproducibility, improved comprehensive utilization, and simple operation

Inactive Publication Date: 2018-06-29
XIAN MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for extracting antioxidant active materials in peony leaves and pr

Method used

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  • Extraction method for material with antioxidant activity in peony leaves and method for preparing material into powder
  • Extraction method for material with antioxidant activity in peony leaves and method for preparing material into powder
  • Extraction method for material with antioxidant activity in peony leaves and method for preparing material into powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Step 1. Extract materials with antioxidant activity from peony leaves;

[0070] Step 1.1 Weigh an appropriate amount of peony leaves, add purified water according to the liquid-to-material ratio of 20:1, soak for 30min, and record it as material I;

[0071] Step 1.2 Extract the material I under reduced pressure and low temperature reflux for 70 minutes at a temperature of 70°C and a pressure of 0.08KPa. The mass ratio of the purified water added again to the remaining material after extraction is 20:1, and extracted under the same conditions. Merge the 2 extracts, and record it as material II;

[0072] Step 1.3 Place the material II at 70°C and 0.08KPa under reduced pressure and concentrate it to 0.4g / mL (the amount of raw material in g per mL), then centrifuge at a high speed at 5000r / min for 15min, collect the supernatant, and record it as Material III;

[0073] Step 1.4 Put the material III in a magnetic stirrer with a rotating speed of 40r / min, add absolute ethano...

Embodiment 2

[0082] Step 1. Extract materials with antioxidant activity from peony leaves;

[0083] Step 1.1 Weigh an appropriate amount of peony leaves, add purified water according to the liquid-to-material ratio of 20:1, soak for 20min, and record it as material I;

[0084] Step 1.2 Extract the material I under reduced pressure and low temperature reflux for 65 minutes at a temperature of 75°C and a pressure of 0.07KPa. The mass ratio of the purified water added again to the remaining material after extraction is 20:1, and extracted under the same conditions. Merge the 2 extracts, and record it as material II;

[0085] Step 1.3 Place the material II at 75°C and 0.09KPa under reduced pressure and concentrate it to 0.45g / mL (the amount of raw material in g per mL), then centrifuge at a high speed at 4000r / min for 10min, collect the supernatant, and record it as Material III;

[0086] Step 1.4 Put the material III in a magnetic stirrer with a rotating speed of 45r / min, add absolute ethan...

Embodiment 3

[0095] Step 1. Extract materials with antioxidant activity from peony leaves;

[0096] Step 1.1 Weigh an appropriate amount of peony leaves, add purified water according to the liquid-to-material ratio of 20:1, soak for 40min, and record it as material I;

[0097]Step 1.2 Extract the material I under reduced pressure and low temperature reflux for 60 minutes at a temperature of 80°C and a pressure of 0.06KPa. The mass ratio of the purified water added again to the remaining material after extraction is 20:1, and extracted under the same conditions. Merge the 2 extracts, and record it as material II;

[0098] Step 1.3 Place the material II at 80°C and 0.07KPa under reduced pressure and concentrate it to 0.6g / mL (the amount of raw material in g per mL), then centrifuge at 6000r / min for 12min at high speed, collect the supernatant, and record it as Material III;

[0099] Step 1.4 Put the material III in a magnetic stirrer with a rotating speed of 55r / min, add absolute ethanol, ...

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Abstract

The invention discloses an extraction method for a material with antioxidant activity in peony leaves and a method for preparing material into powder, which comprise the following steps: firstly, thematerial with antioxidant activity is extracted from peony leaves, the extracted material with antioxidant activity is then purified, and finally, powder is prepared from the purified material. The extraction method for the material with antioxidant activity in peony leaves and the method for preparing powder which are disclosed by the invention solve the problem that antioxidants synthesized by the prior art have potential toxicity and carcinogenic effect; the methods are easy to operate, and has good repeatability; by applying the methods disclosed by the invention, a natural, highly effectively and low-toxicity antioxidant can be obtained, moreover, the comprehensive utilization of oil peony resource is also increased, and certain social benefit is generated.

Description

technical field [0001] The invention belongs to the technical field of medicines, and relates to a method for extracting antioxidant active materials in tree peony leaves, and also relates to a preparation method for the above-mentioned antioxidant active material powder. Background technique [0002] The body continuously produces various active oxygen free radicals during the oxidative metabolism of life activities. Free radicals can combine with hydrogen atoms of many substances in the organism, causing changes in the structure and function of related cells, thereby causing a series of related diseases, such as arteriosclerosis , cardiovascular disease, and diabetes, so the research on anti-oxidative damage drugs has attracted increasing attention. There are synthetic and natural sources, and synthetic antioxidants are potentially toxic and carcinogenic. Therefore, it is of great significance to find natural, high-efficiency and low-toxic natural antioxidants. Polysacch...

Claims

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Application Information

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IPC IPC(8): C08B37/00
CPCC08B37/0003
Inventor 陈程刘瑞罗国平张存劳
Owner XIAN MEDICAL UNIV
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