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Method for extracting ellagic acid from pomegranate peel

A technology of pomegranate peel and ellagic acid, which is applied in the field of extracting ellagic acid, can solve problems such as adverse environmental effects, achieve the effects of increasing content and extraction efficiency, improving technology integration, and improving yield

Inactive Publication Date: 2015-02-11
桂林三宝生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the use of organic reagents, it will cause adverse effects on the environment

Method used

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  • Method for extracting ellagic acid from pomegranate peel

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Comparison scheme
Effect test

Embodiment 1

[0028] A method for extracting ellagic acid from pomegranate peel, specifically comprising the steps of:

[0029] 1) Raw material processing: pulverize 100 kg of dried pomegranate peel;

[0030] 2) High-pressure micro-jet superfine pulverization treatment: Add 800kg of pure water to the pulverized pomegranate peel, process it with a high-speed shear emulsifier for 10 minutes at a speed of 12000r / min, and then use high-pressure micro-jet superfine pulverization equipment for processing at 25°C , the treatment pressure is 100MPa, and the number of treatments is 3 times to obtain a paste slurry;

[0031] 3) High-pressure extraction: Put the paste slurry obtained in step 1) into a high-pressure tank, add purified water of the same weight, and pressurize to 4kgf / cm 2 , make the pressure uniform, and keep it for 10 minutes, return to normal pressure, and obtain the extract;

[0032] 4) Hydrolysis: collect the extract obtained after high-pressure extraction, centrifuge, concentrate...

Embodiment 2

[0036] A method for extracting ellagic acid from pomegranate peel, specifically comprising the steps of:

[0037] 1) Raw material processing: crush 100kg of fresh pomegranate peel;

[0038] 2) High-pressure micro-jet micro-grinding treatment: Add 1,000kg of pure water to the crushed pomegranate peel, process it with a high-speed shear emulsifier for 15 minutes at a speed of 10,000r / min, and then use high-pressure micro-jet ultra-fine pulverization equipment at 25°C Processing, the processing pressure is 80MPa, and the number of processing is 4 times to obtain a paste slurry;

[0039] 3) High-pressure extraction: Put the paste slurry obtained in step 1) into a high-pressure tank, add purified water of the same weight, and pressurize to 4kgf / cm 2 , to make the pressure uniform, and keep it for 12 minutes, return to normal pressure, and obtain the extract;

[0040] 4) Hydrolysis: collect the extract obtained after high-pressure extraction, centrifuge, concentrate to obtain the ...

Embodiment 3

[0044] 1) Raw material processing: crush 100kg of fresh and dried pomegranate peels;

[0045] 2) High-pressure micro-jet superfine pulverization treatment: Add 900 kg of pure water to the crushed pomegranate peel, process it with a high-speed shear emulsifier for 20 minutes at a speed of 8000 r / min, and then use high-pressure micro-jet superfine pulverization equipment at 25 ° C. Processing, the processing pressure is 120MPa, and the number of processing is 2 times to obtain a paste slurry;

[0046]3) High-pressure extraction: Put the paste slurry obtained in step 1) into a high-pressure tank, add the same weight of pure water, pressurize to 4kgf / cm2, make the pressure uniform, and keep it for 15 minutes, return to normal pressure, and obtain extraction liquid;

[0047] 4) Hydrolysis: collect the extract obtained after high-pressure extraction, centrifuge, concentrate to obtain the extract, add concentrated sulfuric acid to the extract, the amount added is equivalent to 0.8 t...

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Abstract

The invention discloses a method for extracting an ellagic acid from pomegranate peel. The method comprises the following steps of raw material treatment, high-pressure microjet superfine grinding treatment, high-pressure extraction, hydrolysis, purification, crystal collection, drying and obtainment of the ellagic acid. The method has the advantages of simple process, small pollution and the like, and is suitable for production and ensures that the content of the ellagic acid is high.

Description

technical field [0001] The invention relates to an extraction method in the field of biotechnology, in particular to a method for extracting ellagic acid from pomegranate peel. Background technique [0002] Pomegranate (Punica granatum L) belongs to the pomegranate family Pomegranate genus deciduous shrubs or small trees. It is distributed in subtropical and temperate regions. Pomegranates are planted in various regions in the north and south of my country. There are five most influential pomegranate producing areas in China: Lintong, Shaanxi , Zaozhuang, Shandong, Huaiyuan, Anhui, Huili, Sichuan, and Mengzi, Yunnan. [0003] Pomegranate peel is the dry peel of pomegranate, which is irregular in flake or scoop shape, with different sizes and 1.5-3mm thick. The outer surface is reddish-brown, brown-yellow or dark brown, slightly shiny, rough, with many blemish-like protrusions. Some have protruding tubular persistent calyx and thick and short fruiting stems or scars. The in...

Claims

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Application Information

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IPC IPC(8): C07D493/06
CPCC07D493/06
Inventor 卢照凯钟德品谢冬养周晓青唐利萍
Owner 桂林三宝生物科技有限公司
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