CN108948779A - A kind of preparation method of melanin - Google Patents
A kind of preparation method of melanin Download PDFInfo
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- CN108948779A CN108948779A CN201710376274.4A CN201710376274A CN108948779A CN 108948779 A CN108948779 A CN 108948779A CN 201710376274 A CN201710376274 A CN 201710376274A CN 108948779 A CN108948779 A CN 108948779A
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- Prior art keywords
- melanin
- solution
- black
- mixed solution
- preparation
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B61/00—Dyes of natural origin prepared from natural sources, e.g. vegetable sources
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
- A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0096—Purification; Precipitation; Filtration
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Molecular Biology (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Health & Medical Sciences (AREA)
- Mycology (AREA)
- Physiology (AREA)
- Animal Husbandry (AREA)
- Zoology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Food Science & Technology (AREA)
- Cosmetics (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Abstract
The present invention provides a kind of preparation method of melanin, this method processing technology is simple, raw material is saved, not will cause environmental pollution, energy conservation and environmental protection, the melanin purity is high of preparation, particle is small, and adhesive force is high, and human body can freely absorb, residue after preparation can be used as the feed of animal, improve the utilization rate of raw material.
Description
Technical field
The invention belongs to field of material processing, in particular to a kind of preparation method of melanin.
Background technique
Melanin is a kind of macromolecular substances of indefiniteness, is widely present in plant, and water is insoluble in, insoluble in having
Solvent, and structure is complicated, different properties.China proposes that melanin has the renal function of human body in theory of traditional Chinese medical science very early
Very big benefit, therefore have this saying, often edible black-food is beneficial to the health of kidney.Growth of the melanin for animal
And development has important role, can improve the existence of animal and the ability of competition, be the important active material of human body, with people
The healthy growth of body and body failure etc. have close connection, and domestic and international this respect has done a large amount of research, and domestic very few.
The melanin in different material source respectively has specificity, has very big prospect in terms of application developing and development, so natural black
Plain development of resources is a big hot spot of current research.So far, the vegetable material containing melanin studied mainly has:
Black rice, Semen sesami nigrum, Chenopodiaceae beans, rosefinch flower seed peel, banana skin and fragrans seed etc..Studies have shown that there is plant melanin enhancing to exempt from
Epidemic disease, protection nerve and the stronger function of removing free radical, play an important role to people's health.Currently, people are from natural tea
Melanin is extracted in son and lauraceae tree leaves, and as hair dye, the melanin extracted in black glutinous rice and Semen sesami nigrum by with
Make food additives.China's Chinese medicine is known as the health theory of " meet black must mend ", but exploitation value of the China to melanin for a long time
Value is not paid attention to.At abroad, the U.S. and Japan are applied to natural black pigment in food production, natural black pigment sterling at present
International market price is up to 300,000 yuan/ton, and therefore, melanin is empty as food additives production black nutritive health food market
Between it is huge, in addition, research confirm natural black pigment have it is anti-oxidant, improve immunity, external inhibit influenza virus and AIDS
Effect of virus.So natural black pigment has a extensive future in terms of new drug development.
Since melanin is a kind of complicated macromolecule polyalcohol, and be insoluble in common solvent and water, but often with
The macromolecular substances such as tannin, carbohydrate and protein are combined together and are difficult to isolate and purify, thus both at home and abroad to black
The research of element is concentrated mainly on extraction process, physicochemical property and function etc..
Melanin is insoluble in water, cause extraction cost it is high, using being restricted, therefore how to be stablized and water-soluble
The good melanin of property is that it largely can prepare natural black pigment using inkfish now by the key link of efficient application, is needed
A large amount of inkfish is used, and the raw material for having refined melanin all slatterns substantially, causes environmental pollution, also results in resource wave
Take.
Summary of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of preparation method of melanin, and this method processing technology is simple,
Raw material is saved, not will cause environmental pollution, energy conservation and environmental protection, the melanin purity is high of preparation, particle is small, and adhesive force is high, human body energy
Freely absorb.
Realizing the technical solution of the object of the invention is:
A kind of preparation method of melanin, includes the following steps
1) sorting clean, choose the higher black rice of melanin content, Semen sesami nigrum, the crops such as hill gooseberry, with clear water clean, contain into
In container, the NaOH solvent that the pH value for being carried out broken stirring using blender, and mass percent 5% being added is 2.0 carries out room
Temperature is impregnated, 5-8 hour of soaking time；
2) immersion method is used, the mixed solution that step 1) obtains is subjected to cleaning filtering, by the mixed solution of acquisition, this mixing is molten
Liquid is preliminary extracting solution.
3) by step 2, the mixed solution of acquisition is placed in closed container, and the second of percent by volume 80% is added
Alcohol, the concentration of ethyl alcohol are 70%, it is ensured that the pH value of mixed solution is 2.0, is first heated to 70 °C, after being sufficiently mixed, and stops heating,
And mixed liquor is stood into 5 hours.
4) extraction step 3) in closed appearance in mixed liquor top clear liquid, extracted, be left black medicinal extract, return
It returns step 1 to carry out again, extraction operation.
5) the melanin liquid for obtaining upper step, it is very 2% that quality, which is added, the food acids that pH value is 3.5, by this
Solution left standstill 2 hours, upper liquid is extracted, the melanin of precipitating is obtained.
6) by paste melanin in step 5) 30 °C at a temperature of, slow heating, drying are final to obtain by purification
Melanin, it is sieve that melanin, which is crossed 1000 mesh, obtains the edible natural black pigment of finished product.
Beneficial effect
The present invention provides a kind of preparation method of melanin, and this method processing technology is simple, saves raw material, not will cause environment dirt
Dye, energy conservation and environmental protection, the melanin purity is high of preparation, particle is small, and adhesive force is high, and human body can freely absorb, and the residue after preparation can
Using the feed as animal, the utilization rate of raw material is improved.
Specific embodiment
The content of present invention is further elaborated below with reference to embodiment, but is not limitation of the invention.
Embodiment
A kind of preparation method of melanin, includes the following steps
1) sorting clean, choose the higher black rice of melanin content, Semen sesami nigrum, the crops such as hill gooseberry, with clear water clean, contain into
In container, the NaOH solvent that the pH value for being carried out broken stirring using blender, and mass percent 5% being added is 2.0 carries out room
Temperature is impregnated, 5-8 hour of soaking time；
2) immersion method is used, the mixed solution that step 1) obtains is subjected to cleaning filtering, by the mixed solution of acquisition, this mixing is molten
Liquid is preliminary extracting solution.
3) by step 2, the mixed solution of acquisition is placed in closed container, and the second of percent by volume 80% is added
Alcohol, the concentration of ethyl alcohol are 70%, it is ensured that the pH value of mixed solution is 2.0, is first heated to 70 °C, after being sufficiently mixed, and stops heating,
And mixed liquor is stood into 5 hours.
4) extraction step 3) in closed appearance in mixed liquor top clear liquid, extracted, be left black medicinal extract, return
It returns step 1 to carry out again, extraction operation.
5) the melanin liquid for obtaining upper step, it is very 2% that quality, which is added, the food acids that pH value is 3.5, by this
Solution left standstill 2 hours, upper liquid is extracted, the melanin of precipitating is obtained.
6) by paste melanin in step 5) 30 °C at a temperature of, slow heating, drying are final to obtain by purification
Melanin, it is sieve that melanin, which is crossed 1000 mesh, obtains the edible natural black pigment of finished product.
Claims (1)
1. a kind of preparation method of melanin, which is characterized in that include the following steps
(1) sorting is cleaned, and chooses the higher black rice of melanin content, Semen sesami nigrum, and the crops such as hill gooseberry are cleaned with clear water, is contained
Enter in container, the NaOH solvent that the pH value for being carried out broken stirring using blender, and mass percent 5% being added is 2.0 carries out
Soaking at room temperature, 5-8 hour of soaking time；
(2) immersion method is used, the mixed solution that step 1) obtains is subjected to cleaning filtering, by the mixed solution of acquisition, this mixing
Solution is preliminary extracting solution；
(3) by step 2, the mixed solution of acquisition is placed in closed container, and the ethyl alcohol of percent by volume 80% is added,
The concentration of ethyl alcohol is 70%, it is ensured that the pH value of mixed solution is 2.0, is first heated to 70 °C, after being sufficiently mixed, and stops heating, and will
Mixed liquor stands 5 hours；
(4) extraction step 3) in closed appearance in mixed liquor top clear liquid, extracted, be left black medicinal extract, return
Step 1 carries out again, extraction operation；
(5) the melanin liquid for obtaining upper step, it is very 2% that quality, which is added, the food acids that pH value is 3.5, by this solution
2 hours are stood, upper liquid is extracted, obtains the melanin of precipitating；
(6) by paste melanin in step 5) 30 °C at a temperature of, slow heating, drying are final to obtain by the black of purification
Pigment, it is sieve that melanin, which is crossed 1000 mesh, obtains the edible natural black pigment of finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710376274.4A CN108948779A (en) | 2017-05-25 | 2017-05-25 | A kind of preparation method of melanin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710376274.4A CN108948779A (en) | 2017-05-25 | 2017-05-25 | A kind of preparation method of melanin |
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| Publication Number | Publication Date |
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| CN108948779A true CN108948779A (en) | 2018-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710376274.4A Pending CN108948779A (en) | 2017-05-25 | 2017-05-25 | A kind of preparation method of melanin |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059540A (en) * | 1991-06-27 | 1992-03-18 | 青岛大学 | Extract melanic method with Semen Sesami Nigrum |
| CN1121519A (en) * | 1994-10-25 | 1996-05-01 | 纪宝臣 | Food melanin extracting method |
| CN1325924A (en) * | 2001-06-25 | 2001-12-12 | 王力田 | Process for extracting melanin |
| CN102675903A (en) * | 2011-03-16 | 2012-09-19 | 杨青松 | Extraction method for melanin |
-
2017
- 2017-05-25 CN CN201710376274.4A patent/CN108948779A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059540A (en) * | 1991-06-27 | 1992-03-18 | 青岛大学 | Extract melanic method with Semen Sesami Nigrum |
| CN1121519A (en) * | 1994-10-25 | 1996-05-01 | 纪宝臣 | Food melanin extracting method |
| CN1325924A (en) * | 2001-06-25 | 2001-12-12 | 王力田 | Process for extracting melanin |
| CN102675903A (en) * | 2011-03-16 | 2012-09-19 | 杨青松 | Extraction method for melanin |
Non-Patent Citations (4)
| Title |
|---|
| 原毅: "《天然食用色素的生产和应用》", 31 March 2004, 中国铁道出版社 * |
| 周旭章等: "从黑芝麻中提取黑色素的研究", 《林产化工通讯》 * |
| 李昌等: "黑芝麻黑色素的研究进展", 《食品工业科技》 * |
| 程玉峰等: "从黑芝麻中提取黑色素的研究", 《江西化工》 * |
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Application publication date: 20181207 |