Method for preparing high-purity peanut skin procyanidine

A technology of red-clothed raw flowers and peanut-red-clothed, which is applied in the biological field, can solve the problems of reduced product added value, low product purity, and low yield, and achieve the effects of improving product quality, safety, high purity, and easy absorption

Inactive Publication Date: 2017-11-24
金胜粮油集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the main problems about the extraction process of peanut red proanthocyanidins are low product purity, low yield, and high cost.
[0005] Chinese patent technology "CN104277025A" discloses a method for extracting proanthocyanidins from peanut red coat. The purity of the product prepared by this method is about 97%, and the yield is about 9%, reaching the level of the same industry, but the yield still needs to be further improved
The applicant's previous patented technology "CN103880805A A process for extracting proanthocyanidins from peanut red coat" has a yield of about 6%, a purity of 95-97%, and a lower added value of the product

Method used

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  • Method for preparing high-purity peanut skin procyanidine

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Embodiment 1

[0024] A preparation method of high-purity peanut red proanthocyanidins, comprising the steps of:

[0025]

[0026] Specifically include the following steps:

[0027] (1) Pick up the material from the raw material warehouse, send it to the pretreatment room for dust removal, stone removal, color selection and selection, remove all impurities and mildewed raw materials, and perform ozone treatment and ultraviolet irradiation to remove aflatoxin to obtain 500kg Peanut red coat raw material.

[0028] (2) Pour the raw materials into the extraction tank, feed while adding water, the weight ratio of material to liquid is 1:9, the temperature in the extraction tank rises to 40°C for 2 hours, reflux for 10 minutes every 0.5 hours, and the extract passes through a 100-mesh screen Sieve and filter into a temporary storage tank, add 6 times the volume of water to the remaining filter residue, keep at 40°C for 1 hour, reflux for 10 minutes every 0.5 hours, and combine the extracts in ...

Embodiment 2

[0034] A preparation method of high-purity peanut red proanthocyanidins, comprising the steps of:

[0035] (1) Pick up the material from the raw material warehouse, send it to the pretreatment room for dust removal, stone removal, color selection and selection, remove all impurities and mildewed raw materials, and perform ozone treatment and ultraviolet irradiation to remove aflatoxin to obtain 500kg Peanut red coat raw material.

[0036](2) Pour the raw materials into the extraction tank, feed while adding water, the ratio of material to liquid is 1:9, the temperature in the extraction tank rises to 45°C and keeps for 2.5 hours, reflux for 10 minutes every 0.5 hours, and the extract is passed through a 100-mesh screen Sieve and filter into the temporary storage tank, add 7 times the volume of water to the remaining filter residue, keep at 45°C for 0.5h, reflux for 10min every 0.5h, and combine the extracts in the temporary storage tank.

[0037] (3) Add 0.02% food-grade poly...

Embodiment 3

[0042] A preparation method of high-purity peanut red proanthocyanidins, comprising the steps of:

[0043] (1) Pick up the material from the raw material warehouse, send it to the pretreatment room for dust removal, stone removal, color selection and selection, remove all impurities and mildewed raw materials, and perform ozone treatment and ultraviolet irradiation to remove aflatoxin to obtain 500kg Peanut red coat raw material.

[0044] (2) Pour the raw materials into the extraction tank, feed while adding water, the ratio of material to liquid is 1:8, the temperature in the extraction tank rises to 50°C for 2 hours, and refluxes for 10 minutes every 0.5 hours, and the extract is passed through a 100-mesh screen Filter and put it into a temporary storage tank, add 4 times the volume of water to the remaining filter residue, keep at 50°C for 2 hours, reflux every 0.5 hours for 10 minutes, and combine the extracts in the temporary storage tank.

[0045] (3) Add 0.04% food-gra...

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Abstract

The invention belongs to the technical field of biology, and discloses a method for preparing high-purity peanut skin procyanidine. The method comprises the steps of pretreating peanut skin; extracting the pretreated peanut skin by adopting a water immersion method to obtain an extracting solution; carrying out flocculation, filtration and centrifuging on the extracting solution to obtain filtrate; absorbing the filtrate by using macromolecule resin, and eluting by using ethanol to obtain a desorption solution; carrying out high-efficiency concentration on the desorption solution to obtain a concentrated solution; and carrying out spray drying on the concentrated solution to obtain peanut skin procyanidine powder. A product prepared by using the method is high in purity, high in yield and good in quality, and can be widely applied to the fields, such as health products, foods, drugs and cosmetics; and the method is green and environmentally friendly in production technology, low in cost, low in energy consumption, suitable for large-scale industrial production and wide in market prospect.

Description

technical field [0001] The invention belongs to the field of biotechnology, and in particular relates to a preparation method of high-purity peanut red proanthocyanidin. technical background [0002] Peanut red coat is rich in bioactive substance proanthocyanidins (Proanthocyanidins, PC), which are polymerized from catechin and epicatechin. Proanthocyanidins have strong biological activity and low toxicity, whether in the antioxidant activity of natural products, Both in terms of cardiovascular protection and in antibacterial and antiviral aspects, there are remarkable achievements and bright prospects, which have set off an upsurge of research on proanthocyanidins at home and abroad, and the research results are widely used in the fields of medicine, food and cosmetics. For example, catechin (trade name VEREGEN) for the treatment of genital warts caused by human papillomavirus and CROFELEMER (trade name FULYZAQ) for the treatment of AIDS-related diarrhea are the only natu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D311/62
CPCC07D311/62
Inventor 高冠勇武玉波陈宁陈文娜马治良支守金
Owner 金胜粮油集团有限公司
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