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Method for extracting antioxidant from dogwood kernels

A dogwood fruit core and anti-oxidant technology, applied in the direction of chemical instruments and methods, compositions for inhibiting chemical changes, etc., can solve the problems of undiscovered anti-oxidant methods

Inactive Publication Date: 2011-05-18
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no method for preparing pure natural antioxidants from Cornus officinalis fruit stones as raw materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1: Take 10kg of dried Cornus officinalis fruit core, crush it properly, put it in a percolation tank, use 50L petroleum ether with a boiling range of 60-90°C for percolation extraction, and then use 50L acetone for percolation extraction , collect the acetone percolation liquid, reclaim the solvent, and obtain the total extract; add 5L of water to the total extract to disperse, extract 5 times with ethyl acetate, each dosage is 10L, divide the ethyl acetate extract, reclaim the solvent, and dry , that is, antioxidants.

Embodiment 2

[0032] Example 2: Take 10kg of dried Cornus officinalis fruit cores, crush them properly, place them in a percolation tank, use 100L of petroleum ether with a boiling range of 60-90°C for percolation extraction, and then use 100L of acetone for percolation extraction , collect the acetone percolation liquid, reclaim the solvent, and obtain the total extract; the total extract is dispersed with 20L of water, and extracted 3 times with ethyl acetate, each time the amount is 30L, the ethyl acetate extract is divided, the solvent is recovered, and dried , that is, antioxidants.

Embodiment 3

[0033] Embodiment 3: take the dried Cornus officinalis fruit stone, crush it properly, place it in a percolation tank, carry out percolation extraction with 70L of petroleum ether with a boiling range of 60-90°C, and then carry out percolation extraction with 70L of acetone, Collect the acetone percolation liquid, recover the solvent, and obtain the total extract; add 10L of water to the total extract to disperse, extract 5 times with ethyl acetate, each time the amount is 20L, separate the ethyl acetate extract, recover the solvent, dry, That is, antioxidants.

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Abstract

The invention relates to a method for extracting an antioxidant from dogwood kernels, in particular to a method for extracting an antioxidant from dogwood kernels, which mainly comprises the steps of: degreasing the dogwood kernels, percolating and extracting with acetone, recovering a solvent, adding water for dispersing, extracting with ethyl acetate, separating and extracting an ethyl acetate extraction solution, and recovering the solvent to obtain the antioxidant from the dogwood kernels. According to the invention, the antioxidant can be conveniently and effectively prepared from the dogwood kernels by adopting the method, thus the using method of the dogwood kernels is enriched and the basis is provided for the development of the dogwood kernels.

Description

technical field [0001] The invention relates to a method for preparing antioxidants from dogwood fruit stones. Background technique [0002] Antioxidants play a key role in preventing and delaying natural oxidation, so they are widely used in real life. Antioxidants can be divided into two categories: synthetic and natural antioxidants. Due to the restrictions on the use of synthetic antioxidants and the improvement of public health awareness, people have turned more attention to natural antioxidants in the research of antioxidants. Generally speaking, consumers are more inclined to use natural antioxidants due to their safety and environmental friendliness. In addition, the application of natural antioxidants in preventive and therapeutic medicine has also become very important. [0003] Dogwood is a deciduous tree or small tree, and it is widely distributed in Henan, Zhejiang, Shaanxi and other provinces in my country. The dried and mature pulp of Cornus officinalis is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K15/34
Inventor 李军路西明时清亮姜华赵士阳李晓明张倩秦双双
Owner HENAN UNIV OF SCI & TECH