CN101028065A - Extraction of purplish natural pigment - Google Patents
Extraction of purplish natural pigment Download PDFInfo
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- CN101028065A CN101028065A CNA2007100616526A CN200710061652A CN101028065A CN 101028065 A CN101028065 A CN 101028065A CN A2007100616526 A CNA2007100616526 A CN A2007100616526A CN 200710061652 A CN200710061652 A CN 200710061652A CN 101028065 A CN101028065 A CN 101028065A
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- pigment
- fructus corni
- washing
- jujube
- extraction
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Abstract
A process for extracting natural jujube red pigment from jujube peel includes such steps as washing, drying in the air, pulverizing, mixing with NaOH solution in ceramic jar, extracting at 80-90 deg.C for 1.5-2 hr three times, cooling, press filtering, clarifying, vacuum stilling until it becomes powder, and washing with alcohol solution.
Description
Technical field
The present invention relates to produce the extracting method of purplish natural pigment with the red date skin.
Background technology
China's jujube cultivation area has reached more than 1,000,000 hectares, produces ten thousand tons of red date 180-200 per year, and year eats about 1.5 kilograms, aboundresources per capita can to supply the whole nation.
At present, the red date major part of market sale is the jujube that looses, clean, the less than 30% of stoning, packing and selling, be processed into candied date, A Jiao jujube, jujube powder, jujube paste, jujube tea, jujube beverage etc. and also be no more than 20%, part jujube producing region is sold the jujube difficulty and happen occasionally every year, injured the enthusiasm of jujube farming kind jujube, only walked the road of deep processing, the jujube farming is become better-off.
Red date is precious from head to foot, promptly can be developed into leisure food, can be developed into costly medicine again.Purplish natural pigment is widely used in medicine, the superior cosmetics, also be widely used in beverage in the pollution-free food, fruit wine, carbonated drink, the cake, because purplish red pigment all is better than capsicum red pigment on quality and function, want to buy 1,460,000 dollars one ton of valency abroad, produce market has a extensive future.
Summary of the invention
Technical problem to be solved by this invention provide a kind of that can be used to the discarded object fructus corni of jujube processing, make the jujube product extracting method of value-added red natural coloring matter significantly.
The present invention adopts following technical scheme:
The present invention adopts following extracting method: (1), preliminary treatment: with the fructus corni in the Chinese date process, clean, dry, pulverize, pour in the ceramic cylinder; (2) extract: the alkali lye that in ceramic cylinder, adds 0.6-0.8mol/L concentration, be that the NaOH solution weight is 5-10 a times of fructus corni, lixiviate, extraction temperature remains on 80-90 ℃, i.e. reflux temperature, and the time is 1.5-2 hour, the extraction cooling press filtration that finishes, filtrate is left standstill clarification, and fructus corni is extracted 2 times by aforementioned condition again, merges 3 times extract; (3), concentrate: vacuum distillation until evaporate to dryness, obtains Powdered alkaline pigment to remove moisture; (4), washing:, obtain the neutral pigment of bronzing colloid with the washing of 70% ethanol.
Good effect of the present invention is as follows: the red date decortication that the present invention adopts, take off meat, take off nuclear three and take off seperator, and drying machine, filter press and pigment extract special equipment, adopt solvent extraction, can produce the purplish natural pigment product.The purplish red pigment pure lines phytochrome that the present invention produces, be shaped as solid, have painted tone nature, good stability is rich in vitamin activity, has the fortification effect concurrently, distinctive aromatic odor, safe, of many uses, product of the present invention comes out, to promote the deep processing process in jujube producing region, thus leader's jujube industry development new trend.Adopt technology of the present invention to extract purplish natural pigment, not only can be used to the discarded object fructus corni of jujube processing, simultaneously fall jujube, bad jujube, mashed jujube (the mashed skin of mashed jujube) of wind can rise in value the jujube product, the economic and social benefit highly significant as prepared using significantly.
The specific embodiment
The red date decortication that the present invention adopts, take off meat, take off nuclear three and take off seperator, and drying machine, filter press and pigment extract special equipment, adopt solvent extraction, can produce the purplish natural pigment product.
Embodiment 1:
The present invention adopts following extracting method: (1), preliminary treatment: with the fructus corni in the Chinese date process, clean, dry, pulverize, pour in the ceramic cylinder; (2) extract: add the alkali lye of 0.6mol/L concentration in ceramic cylinder, promptly the NaOH solution weight is 7.5 times of fructus corni, lixiviate, and extraction temperature remains on 90 ℃, i.e. reflux temperature, the time is 1.5 hours.The extraction cooling press filtration that finishes, filtrate is left standstill clarification, and fructus corni is extracted 2 times by aforementioned condition again, merges 3 times extract; (3), concentrate: vacuum distillation until evaporate to dryness, obtains Powdered alkaline pigment to remove moisture; (4), washing:, obtain the neutral pigment of bronzing colloid with the washing of 70% ethanol.Product is water-soluble, and ethanol is all stable to light, heat.
Embodiment 2:
The present invention adopts following extracting method: (1), preliminary treatment: with the fructus corni in the Chinese date process, clean, dry, pulverize, pour in the ceramic cylinder; (2) extract: add the alkali lye of 0.7mol/L concentration in ceramic cylinder, promptly the NaOH solution weight is 5 times of fructus corni, lixiviate, and extraction temperature remains on 80 ℃, i.e. reflux temperature, the time is 1.5 hours.The extraction cooling press filtration that finishes, filtrate is left standstill clarification, and fructus corni is extracted 2 times by aforementioned condition again, merges 3 times extract; (3), concentrate: vacuum distillation until evaporate to dryness, obtains Powdered alkaline pigment to remove moisture; (4), washing:, obtain the neutral pigment of bronzing colloid with the washing of 70% ethanol.Product is water-soluble, and ethanol is all stable to light, heat.
Embodiment 3:
The present invention adopts following extracting method: (1), preliminary treatment: with the fructus corni in the Chinese date process, clean, dry, pulverize, pour in the ceramic cylinder; (2) extract: add the alkali lye of 0.8mol/L concentration in ceramic cylinder, promptly the NaOH solution weight is 10 times of fructus corni, lixiviate, and extraction temperature remains on 85 ℃, i.e. reflux temperature, the time is 1.75 hours.The extraction cooling press filtration that finishes, filtrate is left standstill clarification, and fructus corni is extracted 2 times by aforementioned condition again, merges 3 times extract; (3), concentrate: vacuum distillation until evaporate to dryness, obtains Powdered alkaline pigment to remove moisture; (4), washing:, obtain the neutral pigment of bronzing colloid with the washing of 70% ethanol.Product is water-soluble, and ethanol is all stable to light, heat.
Claims (1)
1, a kind of extracting method of purplish natural pigment is characterized in that adopting following extracting method: (1), preliminary treatment: with the fructus corni in the Chinese date process, clean, dry, pulverize, pour in the ceramic cylinder; (2), extract: the alkali lye that in ceramic cylinder, adds 0.6-0.8mol/L concentration, be that the NaOH solution weight is 5-10 a times of fructus corni, lixiviate, extraction temperature remains on 80-90 ℃, i.e. reflux temperature, and the time is 1.5-2 hour, the extraction cooling press filtration that finishes, filtrate is left standstill clarification, and fructus corni is extracted 2 times by aforementioned condition again, merges 3 times extract; (3), concentrate: vacuum distillation until evaporate to dryness, obtains Powdered alkaline pigment to remove moisture; (4), washing:, obtain the neutral pigment of bronzing colloid with the washing of 70% ethanol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100616526A CN101028065A (en) | 2007-03-30 | 2007-03-30 | Extraction of purplish natural pigment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100616526A CN101028065A (en) | 2007-03-30 | 2007-03-30 | Extraction of purplish natural pigment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101028065A true CN101028065A (en) | 2007-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100616526A Pending CN101028065A (en) | 2007-03-30 | 2007-03-30 | Extraction of purplish natural pigment |
Country Status (1)
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| CN (1) | CN101028065A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061105A (en) * | 2010-12-10 | 2011-05-18 | 武汉绿孚生物工程有限责任公司 | Method for digesting plant water-soluble pigment from mobile solid phase material in continuous gradient manner |
| CN102924963A (en) * | 2012-10-08 | 2013-02-13 | 常州富思生物科技有限公司 | Method for preparing natural red jujube skin pigment and application of natural red jujube skin pigment |
| CN103333149A (en) * | 2013-06-20 | 2013-10-02 | 吕梁学院 | Extraction method of date peel cyanidin |
| CN107212314A (en) * | 2017-03-13 | 2017-09-29 | 浙江大学 | The method of active principle in serialization grading extraction jujube |
| CN107446378A (en) * | 2017-09-04 | 2017-12-08 | 洛阳师范学院 | Jujube haematochrome and its extracting method and application |
| CN116261969A (en) * | 2021-12-14 | 2023-06-16 | 无棣县华龙食品有限公司 | Jujube peel purplish red element extraction device and purplish red element extraction method |
-
2007
- 2007-03-30 CN CNA2007100616526A patent/CN101028065A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061105A (en) * | 2010-12-10 | 2011-05-18 | 武汉绿孚生物工程有限责任公司 | Method for digesting plant water-soluble pigment from mobile solid phase material in continuous gradient manner |
| CN102924963A (en) * | 2012-10-08 | 2013-02-13 | 常州富思生物科技有限公司 | Method for preparing natural red jujube skin pigment and application of natural red jujube skin pigment |
| CN102924963B (en) * | 2012-10-08 | 2015-04-22 | 常州富思生物科技有限公司 | Method for preparing natural red jujube skin pigment and application of natural red jujube skin pigment |
| CN103333149A (en) * | 2013-06-20 | 2013-10-02 | 吕梁学院 | Extraction method of date peel cyanidin |
| CN103333149B (en) * | 2013-06-20 | 2015-09-23 | 吕梁学院 | A kind of extracting method of date peel cyanidin |
| CN107212314A (en) * | 2017-03-13 | 2017-09-29 | 浙江大学 | The method of active principle in serialization grading extraction jujube |
| CN107446378A (en) * | 2017-09-04 | 2017-12-08 | 洛阳师范学院 | Jujube haematochrome and its extracting method and application |
| CN116261969A (en) * | 2021-12-14 | 2023-06-16 | 无棣县华龙食品有限公司 | Jujube peel purplish red element extraction device and purplish red element extraction method |
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Open date: 20070905 |