Peanut resveratrol extraction method

A technology for resveratrol and extraction method, which is applied in chemical instruments and methods, food preservation, food preparation and other directions, and can solve the problems of long extraction time, short service life, and difficulty in sample pretreatment, etc.

Inactive Publication Date: 2013-06-26
SHANDONG PEANUT RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] ① Organic solvent extraction method: mainly used to extract resveratrol, which has a dominant fat-soluble group. In the patent "Production Method for Extracting Resveratrol from Peanut Roots", an extraction method using an organic solvent as an extraction solvent is disclosed. However, this method has long extraction time and high energy consumption, which is not conducive to cost saving.
However, this method is costly and inoperable
[0009] ⑤Supercritical CO 2 Ext

Method used

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Embodiment Construction

[0028] The specific steps of negative pressure cavitation extraction of peanut resveratrol extract of the present invention are as follows:

[0029] ①Cleaning equipment: Fill the extraction tank and concentration tank with tap water (nearly full), heat to 100°C, keep warm for 1 hour, drain the water, and then wash with tap water once.

[0030] ② Preparation of extraction solvent: 95% edible alcohol and distilled water are made into 30%-90% ethanol solution.

[0031] ③ Feeding: Weigh 120 kg of peanut shells, and add 30% to 90% ethanol according to the ratio of solid to liquid of 1:8 to 15. When feeding, the material and the solvent should be put into the extraction tank step by step, and the mixer should be turned on to stir so that the material and the solvent can be fully mixed.

[0032] ④Primary extraction: After the feeding is completed, seal the extraction tank, open the pressure valve, keep the pressure in the extraction tank at -0.01~-0.1MPa, and keep the negative press...

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Abstract

The invention relates to a resveratrol extraction method. The peanut resveratrol extraction method provided by the invention comprises the following steps of: (1) cleaning a digestion tank and a concentration tank; (2) adding peanut shells and a digestion solvent into the digestion tank; (3) after the feeding, performing digestion: sealing the digestion tank, opening a pressure valve, and keeping pressure in the digestion tank at (-0.01)-(-0.1)MPa for 10-150 minutes; (4) extracting the digestion liquid in the digestion tank and concentrating in the concentration tank; (5) after the concentration, taking out the concentrated liquid, and fetching upper-layer partial solution of the concentrated liquid while the concentrated liquid is hot; (6) cleaning the concentration tank, and washing out residual effective components in the concentration tank; (7) drying the fetched upper-layer partial solution in spray drying equipment, and drying the precipitate of the effective components in vacuum drying equipment; and (8) after the water content is reduced below 10%, taking out the product and grinding. The method provided by the invention is easy to realize and suitable for large-scale production.

Description

technical field [0001] The invention relates to a method for extracting resveratrol, in particular to a method for extracting resveratrol from peanuts. Background technique [0002] Peanut, also known as longevity fruit, leguminous, annual herb, is the main vegetable oil and vegetable protein resources. my country is extremely rich in peanut resources, and is the country with the highest peanut production and export volume in the world, accounting for 1 / 3 of the world's total. my country's annual peanut planting area reaches 2.9 million hectares, with a total output of nearly 15 million tons. However, most of my country's peanut by-products are used as fuel, and the rest are discarded as waste residues. Its added value is far from being developed, and even creates a new environment. pollute. Since peanut by-products are rich in active ingredients and have more functional ingredients, comprehensive utilization of peanut by-products is particularly important. Peanut by-produc...

Claims

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Application Information

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IPC IPC(8): C07C39/21C07C37/70A23L3/3472A23L1/29A23L33/00
Inventor 张吉民孙奎香王秀贞杨伟强熊柳孙庆杰
Owner SHANDONG PEANUT RES INST
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