Extraction method of peanut red skin pigment

An extraction method, a technology of red pigment, applied in chemical instruments and methods, azo dyes, organic dyes, etc., can solve problems such as unsatisfactory, and achieve the effects of preventing dissolution, ensuring extraction rate, and high purity

Inactive Publication Date: 2016-02-24
南宁邃丛赋语科技开发有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Edible natural coloring has the advantages of safety and reliability, less toxic and side effects, natural color, etc., and also has certain pharmacological health effects. The application of natural food coloring continues to expand, which is far from meeting the needs of the development of the modern food industry.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for extracting peanut red pigment, comprising the steps of:

[0021] (1) Pulverization: crush the peanut red coat to obtain peanut red coat powder;

[0022] (2) Enzymolysis: first prepare the peanut red coat powder into a suspension with a weight fraction of 5%, add 1% by weight of cellulase with an activity of 5000U, enzymolyze and filter for 45 minutes at 25°C to obtain peanuts Red coat enzymatic hydrolysis filtrate,

[0023] (3) drying: the peanut red coat enzymolysis filtrate is dried into powder to obtain peanut red coat enzymolysis powder,

[0024] (4) Ultrasonic extraction: dissolve the peanut red coat enzymatic hydrolysis powder in ethyl acetate, perform ultrasonic extraction for 1 to 3 times, filter and combine the filtrates to obtain ethyl acetate extract;

[0025] (5) Extraction: after filtering the ethyl acetate extract, extract the ethyl acetate extract with water, and concentrate the aqueous solution obtained from the extraction to obtain a conc...

Embodiment 2

[0029] A method for extracting peanut red pigment, comprising the steps of:

[0030] (1) Pulverization: crush the peanut red coat to obtain peanut red coat powder;

[0031] (2) Enzymolysis: first prepare peanut red coat powder into a suspension with a weight fraction of 15%, add 0.5% by weight of cellulase with an activity of 8000U, enzymolyze and filter for 30 minutes at 40°C to obtain peanuts Red coat enzymatic hydrolysis filtrate,

[0032] (3) drying: the peanut red coat enzymolysis filtrate is dried into powder to obtain peanut red coat enzymolysis powder,

[0033] (4) Ultrasonic extraction: dissolve the peanut red coat enzymatic hydrolysis powder in ethyl acetate, perform ultrasonic extraction for 1 to 3 times, filter and combine the filtrates to obtain ethyl acetate extract;

[0034] (5) Extraction: after filtering the ethyl acetate extract, extract the ethyl acetate extract with water, and concentrate the aqueous solution obtained from the extraction to obtain a conce...

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PUM

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Abstract

The invention relates to an extraction method of peanut red skin pigment. The method includes the steps of: (1) crushing: crushing peanut red skin to obtain peanut red skin powder; (2) enzymolysis: firstly preparing the peanut red skin powder into a 5-15% by weight of a suspension, adding cellulase, conducting enzymolysis for 30-45min, and performing filtration to obtain peanut red skin enzymolysis filtrate; (3) drying: drying the peanut red skin enzymolysis filtrate into powder to obtain peanut red skin enzymolysis powder; (4) ultrasonic extraction: dissolving the peanut red skin enzymolysis powder in ethyl acetate, conducting ultrasonic extraction 1-3 times, conducting filtration and combining the filtrate to obtain an ethyl acetate extracted solution; (5) extraction: filtering the ethyl acetate extracted solution, then extracting the ethyl acetate extracted solution with water, and concentrating the water solution obtained by extraction to obtain a peanut skin red pigment peanut red skin pigment; and (6) conducting freeze drying to obtain the product. The final product obtained by the method provided by the invention not only has high purity, but also ensures the extraction rate.

Description

technical field [0001] The invention relates to the field of biological extraction, in particular to a method for extracting peanut red pigment. Background technique [0002] Peanut red coat is also called peanut skin, which is the seed coat of legume peanut, reddish brown, membranous, sweet, slightly bitter, and flat in nature. Its main components are 37%-42% cellulose, 10%-14% fat, 11%-18% protein and 8%-21% ash, and also contain about 7% tannin and various pigments. [0003] Peanut red coat has the effect of stopping bleeding, dissipating silt, and reducing swelling. It is the main drug for treating anemia and hemorrhagic disease. Peanut itself is 50 times stronger, which is recorded in books such as "Compendium of Materia Medica" and "Chinese Pharmacopoeia". With the improvement of material living standards, people's diet concepts have also changed. Hope to achieve the effect of disease prevention while enjoying the delicious food, which requires that in addition to n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00C09B67/54C07D311/62
Inventor 陈瑞姣
Owner 南宁邃丛赋语科技开发有限责任公司
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