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A kind of extraction method of triticale bran proanthocyanidins

A bran proanthocyanidin and extraction method technology, which is applied in the field of extraction of black wheat bran proanthocyanidin, can solve the problem of no flavonoid anthocyanin-proanthocyanidin extraction and enrichment, etc., to achieve improved utilization value, easy operation and processing, and convenient industrial production Effect

Inactive Publication Date: 2015-10-21
HENAN AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is no extraction and enrichment of flavonoid anthocyanins—proanthocyanidins

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for extracting triticale bran proanthocyanidins, the specific steps of the method are:

[0026] (1) Pretreatment: remove impurities and pulverize the black wheat bran to 80 mesh to obtain black wheat bran powder, set aside;

[0027] (2) Degreasing: Take 50g of black wheat bran powder in step (1), soak in 450g of petroleum ether for 24 hours, filter, recover petroleum ether from the filtrate, dry the filter residue at room temperature or low temperature to remove residual petroleum ether, and obtain defatted black wheat bran powder. spare;

[0028] (3) Extraction: a. According to the solid-to-liquid ratio of defatted triticale bran powder and ethanol solution with a concentration of 60% by volume and a pH of 3: 1:9, mix and soak for 10 minutes, microwave power is 300w to assist extraction, and the extraction time is 20s to obtain mixture a; b. Stir and extract mixture a at a stirring speed of 100r / min at a temperature of 50°C, and extract for 80 minutes t...

Embodiment 2

[0031] A method for extracting triticale bran proanthocyanidins, the specific steps of the method are:

[0032] (1) Pretreatment: remove impurities and pulverize the black wheat bran to 80 mesh to obtain black wheat bran powder, set aside;

[0033] (2) Degreasing: Take 50g of black wheat bran powder in step (1), soak in 450g of petroleum ether for 24 hours, filter, recover petroleum ether from the filtrate, dry the filter residue at room temperature or low temperature to remove residual petroleum ether, and obtain defatted black wheat bran powder. spare;

[0034] (3) Extraction: a. According to the solid-to-liquid ratio of defatted black wheat bran powder and ethanol solution with a concentration of 50% by volume and a pH value of 4: 1:11, mix and soak for 10 minutes, microwave power is 300w to assist extraction, and the extraction time is 20s to obtain mixture a; b. Stir and extract mixture a at a stirring speed of 100r / min at a temperature of 80°C, and extract for 80 mi...

Embodiment 3

[0037] A method for extracting triticale bran proanthocyanidins, the specific steps of the method are:

[0038] (1) Pretreatment: remove impurities and pulverize the black wheat bran to 80 mesh to obtain black wheat bran powder, set aside;

[0039] (2) Degreasing: Take 50g of black wheat bran powder in step (1), soak in 450g of petroleum ether for 24 hours, filter, recover petroleum ether from the filtrate, dry the filter residue at room temperature or low temperature to remove residual petroleum ether, and obtain defatted black wheat bran powder. spare;

[0040] (3) Extraction: a. According to the solid-to-liquid ratio of defatted black wheat bran powder and ethanol solution with a concentration of 50% by volume and a pH value of 4: 1:11, mix and soak for 10 minutes, microwave power is 300w to assist extraction, and the extraction time is 20s to obtain mixture a; b. Stir and extract mixture a at a stirring speed of 100r / min at a temperature of 60°C for 40 minutes to obta...

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Abstract

The invention relates to a method for extracting procyanidine from triticale bran. The method for extracting procyanidine from triticale bran comprises the steps of smashing of the triticale bran, degreasing, ethanol extraction and microwave-assisted digestion, concentration, drying and the like. The method for extracting procyanidine from triticale bran has the advantages that extraction can be achieved rapidly and easily, the operability is high, extraction is achieved without the need of a poisonous solvent, environmental friendliness is achieved, an extract obtained is high in procyanidine content and can be directly added to food, and development and utilization of waste generated during agriculture product processing are facilitated.

Description

technical field [0001] The invention belongs to the technical field of food processing, and in particular relates to a method for extracting proanthocyanidins from black wheat bran. Background technique [0002] Proanthocyanidins are polyphenolic substances with different degrees of polymerization formed by combining different amounts of catechin, epicatechin and epicatechin gallate. Proanthocyanidins have a strong antioxidant effect and are currently recognized internationally as the most effective natural antioxidant for removing free radicals in the human body. Tests have shown that the anti-free radical oxidation ability of proanthocyanidins is 50 times that of vitamin E and 20 times that of vitamin C, and it can be absorbed quickly and completely. The main functions of proanthocyanidins in health care include improving blood circulation, protecting eyesight, removing edema, lowering cholesterol, etc.; in cosmetics, they are mainly used in anti-wrinkle, moisturizing, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D311/62
CPCC07D311/62
Inventor 马冬云李耀光王晨阳张剑郭天财
Owner HENAN AGRICULTURAL UNIVERSITY