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Method for extracting persimmon polyphenol from persimmons

A technology of persimmon and ethyl acetate is applied in the directions of pharmaceutical formulations, medical preparations containing active ingredients, plant raw materials, etc., which can solve the problems of cumbersome operation process, difficulty in meeting production requirements, destroying the structure of persimmon polyphenols, etc., and achieves simple operation. Easy to implement, improve product yield, and shorten the effect of extraction time

Inactive Publication Date: 2015-03-25
刘小峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the traditional and commonly used methods for extracting persimmon polyphenols mainly include acid extraction, alkali extraction and water extraction, etc. Among them, hot water extraction is mostly used, and acid and alkali extraction will destroy the structure of persimmon polyphenols, and will also affect the sulfate content impact; while the extraction rate of hot water extraction is generally low, it is difficult to meet the production needs
Generally, after water or alcohol extraction, the extract must go through a series of processes such as adsorption, rinsing, and elution after decompression and concentration, and the operation process is cumbersome.

Method used

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  • Method for extracting persimmon polyphenol from persimmons

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Embodiment 1

[0019] A method for extracting persimmon polyphenols from persimmons, comprising the steps of:

[0020] 1) Raw material processing: 10kg of persimmons that are seven to eighty percent ripe are washed and crushed;

[0021] 2) Ultra-high pressure treatment: add 50kg of pure water to the crushed persimmons, pressurize at 350MPa, apply temperature at 50°C, and perform ultra-high pressure treatment for 2 minutes;

[0022] 3) Ultrasonic treatment: The solution obtained in step 2) was subjected to ultrasonic treatment for 8 minutes, the action temperature was 40°C, and the power was 300W;

[0023] 4) Extraction: filter the solution obtained in step 3), and repeatedly extract with ethyl acetate equal to the volume of the filtrate until the ethyl acetate phase is colorless, and collect and combine the ethyl acetate phase;

[0024] 5) Drying: Concentrate the ethyl acetate phase obtained in step 4), and remove the ethyl acetate in the ethyl acetate phase by evaporation at a temperature ...

Embodiment 2

[0026] A method for extracting persimmon polyphenols from persimmons, comprising the steps of:

[0027] 1) Raw material processing: 10kg of persimmons that are seven to eighty percent ripe are washed and crushed;

[0028] 2) Ultra-high pressure treatment: Add 100kg of pure water to the crushed persimmons, press 350MPa, apply temperature 40°C, and perform ultra-high pressure treatment for 5 minutes;

[0029] 3) Ultrasonic treatment: process the solution obtained in step 2) for 5 minutes with ultrasonic treatment at a temperature of 45°C and a power of 300W;

[0030] 4) Extraction: filter the solution obtained in step 3), and repeatedly extract with ethyl acetate equal to the volume of the filtrate until the ethyl acetate phase is colorless, and collect and combine the ethyl acetate phase;

[0031] 5) Drying: Concentrate the ethyl acetate phase obtained in step 4), and remove the ethyl acetate in the ethyl acetate phase by evaporation at a temperature not higher than 40°C to ob...

Embodiment 3

[0033] A method for extracting persimmon polyphenols from persimmons, comprising the steps of:

[0034] 1) Raw material processing: 10kg of persimmons that are seven to eighty percent ripe are washed and crushed;

[0035] 2) Ultra-high pressure treatment: Add 80kg of pure water to the crushed persimmons, press 350MPa, apply temperature 45°C, and perform ultra-high pressure treatment for 3 minutes;

[0036] 3) Ultrasonic treatment: The solution obtained in step 2) was ultrasonically treated for 10 minutes at a temperature of 50°C and a power of 300W;

[0037] 4) Extraction: filter the solution obtained in step 3), and repeatedly extract with ethyl acetate equal to the volume of the filtrate until the ethyl acetate phase is colorless, and collect and combine the ethyl acetate phase;

[0038] 5) Drying: Concentrate the ethyl acetate phase obtained in step 4), and remove the ethyl acetate in the ethyl acetate phase by evaporation at a temperature not higher than 40°C to obtain pe...

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Abstract

The invention discloses a method for extracting persimmon polyphenol from persimmons. The method comprises the following steps: raw material treatment, ultrahigh pressure treatment, ultrasonic treatment, extraction and drying to obtain a product. According to the method, two extracting manners are combined to avoid procedures such as adsorption, leaching, and elution, and therefore the extraction time is shortened on one hand, and the product yield is increased on the other hand.

Description

technical field [0001] The invention relates to a method for extracting persimmon polyphenols, in particular to a method for extracting persimmon polyphenols from persimmons. Background technique [0002] Persimmon (Diospyros.kaki.L), also known as monkey date, red fruit, persimmon tree is a perennial deciduous fruit tree. Persimmon is a plant of the genus Diospyros.kaki.L in the family Ebenaceae. There are more than 500 species of this genus in the world, most of which are tropical or subtropical plants, and a few are produced in warm temperate regions. Persimmon is a temperate deciduous fruit tree of Persimmonaceae berry class. It is native to my country and has a planting history of more than one thousand years in my country. my country is the origin of persimmons. There are 66 species of persimmons native to my country, most of which are distributed in the tropical and subtropical regions of Hainan Island, Guangdong, Guangxi, Fujian, Yunnan and other provinces (autonomo...

Claims

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Application Information

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IPC IPC(8): A61K36/44
Inventor 刘小峰何明茜罗知颂李京生刘二伟
Owner 刘小峰
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