CN1014149B - Method for extracting edible yellow pigment from sunflower's ligulate flower - Google Patents
Method for extracting edible yellow pigment from sunflower's ligulate flowerInfo
- Publication number
- CN1014149B CN1014149B CN88102328A CN88102328A CN1014149B CN 1014149 B CN1014149 B CN 1014149B CN 88102328 A CN88102328 A CN 88102328A CN 88102328 A CN88102328 A CN 88102328A CN 1014149 B CN1014149 B CN 1014149B
- Authority
- CN
- China
- Prior art keywords
- yellow pigment
- extracting method
- natural yellow
- raw material
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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- Coloring Foods And Improving Nutritive Qualities (AREA)
Abstract
The present invention relates to a method for extracting sun flower yellow as a natural edible pigment from ligulate sunflower leaves. The extraction method has the advantages of rich resource of raw materials, low cost, simple and feasible of extraction equipment and technology, products can be used coloring agents for food additives and are beneficial to human health, and the disadvantages that synthetic pigments are easy to cause the public nuisance of food or the like are eliminated. Main raw materials in the extraction method are immersed in water and 95% of alcohol, and then, the immersed raw materials are filtered; and filter liquor is evaporated, concentrated and baked to obtain a finished product.
Description
The present invention is a kind of method of extracting natural pigment from plant tissue.
At present; painted synthetic colours of using of foodstuff additive more; but required technology of synthetic colour and equipment complexity; production cost is higher; and easily cause the food public hazards, the crisis HUMAN HEALTH is through 1963-1987 patents of international online retrieval; do not detect the relevant document that from the Sunflower Receptacle ligulate flower, extracts the flavine look in patent searching 350,351 documents.The 14th page of " the various food dye goods patents (1971～1981) " that provide of " identification of food dye and application " book of publishing according to Chinese food press 1987 in totally 126 patents, are not all extracted the content of yellow pigment from the Sunflower Receptacle ligulate flower.
Purpose of the present invention is in order to satisfy because developing rapidly for the sharply requirement of increase of edible natural yellow pigment of foodstuffs industry enriched for society provides a kind of raw material resources.The method of from the Sunflower Receptacle ligulate flower, extracting natural yellow pigment with low cost, that extraction process is simple.
Technical process of the present invention
Raw material → water logging → filtration → filtrate → evaporation concentration → oven dry
Yellow pigment (I number)
Residue → alcohol immersion → filtration → filtrate
(residue discards) distillation concentrates → oven dry
Yellow pigment (II number)
Sunflower Receptacle ligulate flower sheet after air-dry is through soaking, filtration, evaporation concentration, drying course obtain yellow pigment (I number), finished product is a brown ceramic powder shape solid, it is soluble in water, is slightly soluble in ethanol, is insoluble to ether, in the organic solvents such as sherwood oil, 1 gram raw material adds water and is advisable for 15～100 milliliters during immersion, and soak time is 6～72 hours, and soaking temperature is 10～100 ℃.The condition of soaking changes directly influences product yield.
1. soak the influence of the water yield to product yield
It is best that 1 gram raw material adds 10～75 milliliters in water, adds water to the whole submergences of raw material, and slightly more again is degree, adds water excess, and the evaporation concentration time lengthening wastes energy; Amount of water extracts not exclusively (seeing Table one) very little
2. soaking temperature is to the influence of product yield
Best soaking temperature is 50～80 ℃ is advisable, and by table one as seen, temperature raises, and the productive rate of product increases, and lixiviate speeds up.
3. the relation of soak time and product yield
Soak time is that 12～24 hours effects are better, and the result of processing shows, long soaking time; The easy moldy metamorphism of raw material has promptly reduced productive rate, has also influenced the color and luster and the quality of product; Time is too short, and lixiviate is incomplete, productive rate low (seeing Table 2)
In the residue that Sunflower Receptacle ligulate flower sheet obtains after water logging is filtered, still residual a part of xanthein, and bright in colour, continue to be soaked in water, still remain in the raw material.Show that it is a non-water soluble substance, be abundant extraction, with this residue with 95% alcohol immersion.Filter, distillation concentrates, oven dry promptly obtains yellow pigment (II number).Finished product is pure dissolubility yellow pigment.Be the brownish black solid, water insoluble, be soluble in ethanol, chloroform, the acetone and other organic solvent and basic solutions such as sodium hydroxide, yellow soda ash in, 1 gram residue adds ethanol and is advisable for 15～100 milliliters during immersion, soaking temperature is 10～50 ℃, and soak time is 6～72 hours.Used ethanol in this leaching process through reclaiming, can use repeatedly, thereby reduces extraction cost, and extracting condition directly influences product yield.
4. amount of alcohol is to the influence of product yield
1 gram residue adds ethanol and is the best for 25～50 milliliters, and experiment (seeing Table three) shows that the ethanol consumption is too much, and volatilization is many, and the distillation concentration time is long, wastes energy; The ethanol consumption is very few, can not soak into raw material fully, extracts not exclusively.
5. the relation of soak time and product yield
Long more with the alcohol immersion time, product yield high more (seeing Table three); Time is short, and lixiviate is incomplete, and selecting soak time is 24～48 hours.
6. temperature is to the influence of product yield
By table three as seen, temperature is to not obviously influence of product yield, so select 10～40 ℃ of conditions.
The present invention is applicable to the optimum implementation of suitability for industrialized production: with the Sunflower Receptacle ligulate flower sheet after air-dry, add 40～60% aqueous ethanolic solution and soaked about 24 hours.Carry out under 30 milliliters of normal temperature of 1 gram raw material adding ethanol, filter then, the filtrate distillation is concentrated, oven dry promptly gets product-Sunflower Receptacle yellow pigment.
Effect of the present invention: it is low that (1) and synthetic dyestuff are compared cost. Safe, nontoxic, have no side effect, have very big social benefit and economic benefit. (2) raw material sources are abundant, and are cheap, simple for process, implement easily. (3) sunflower ligulate flower uranidin is of many uses, can be used as the colouring agent of light industry raw material and food industry additive.
The relation of table one amount of water, temperature and product yield
Look amount of water (milliliter/gram raw material)
Plain 25 37.50 50 62.50 75 100
Uranidin I 28.45 29.90 31.15 31.40 32.40 31.60
Number productive rate %
Temperature (℃)
10 20 30 40 50 80 100
20.00 21.30 23.00 23.80 24.50 29.85 35.80
(product is the % of finished product dry weight and raw material dry product)
The relation of table two extraction time and product yield
The look time (hour)
Plain 6 12 24 48 72
Uranidin (I number) 26.95 30.55 31.15 26.30 26.50
Productive rate (%)
The relation of table three amount of alcohol, temperature, time and product yield
Look amount of alcohol (milliliter/gram residue)
Plain 15 25 50 75 100
Uranidin (II number) 6.58 7.00 10.40 9.40 13.30
Productive rate
Temperature (℃)
10 20 30 40 50
8.25 5.80 5.45 5.35 5.45
Time (hour)
6 12 24 48 72
4.87 5.06 5.80 7.00 16.70
Claims (8)
1, a kind of extracting method of natural yellow pigment is characterized in that making raw material with Sunflower Receptacle ligulate flower sheet, through water logging, filtration, filtrate evaporation concentration, oven dry, promptly get yellow pigment I number, soak 1 gram raw material, add water 15-100 milliliter, soak time is 6-72 hour, and soaking temperature is 10-100 ℃.
2, natural yellow pigment extracting method according to claim 1, it is characterized in that the residue after water logging is filtered uses 95% alcohol immersion again, 1 gram residue adds 95% ethanol 15-100 milliliter, soaking temperature is 10-50 ℃, soak time is 6-72 hour, after filtration, filtrate distillation (recovery ethanol), oven dry, promptly get yellow pigment II number.
3, natural yellow pigment extracting method according to claim 1 is characterized in that 1 gram raw material adds water 30-75 milliliter.
4, natural yellow pigment extracting method according to claim 1 is characterized in that soak time is 12-24 hour.
5, natural yellow pigment extracting method according to claim 1 is characterized in that soaking temperature is 50-80 ℃.
6, the extracting method of natural yellow pigment according to claim 2 is characterized in that 1 gram residue adds 95% ethanol 25-50 milliliter.
7, the extracting method of natural yellow pigment according to claim 2 is characterized in that soaking temperature is 20-40 ℃
8, the extracting method of natural yellow pigment according to claim 2 is characterized in that soak time is 24-48 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN88102328A CN1014149B (en) | 1988-05-03 | 1988-05-03 | Method for extracting edible yellow pigment from sunflower's ligulate flower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN88102328A CN1014149B (en) | 1988-05-03 | 1988-05-03 | Method for extracting edible yellow pigment from sunflower's ligulate flower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1031706A CN1031706A (en) | 1989-03-15 |
| CN1014149B true CN1014149B (en) | 1991-10-02 |
Family
ID=4832112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN88102328A Expired CN1014149B (en) | 1988-05-03 | 1988-05-03 | Method for extracting edible yellow pigment from sunflower's ligulate flower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1014149B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100389674C (en) * | 2006-05-29 | 2008-05-28 | 李继宁 | Method for producing pure natural edible stain |
| CN100447206C (en) * | 2006-11-27 | 2008-12-31 | 江南大学 | Method of extracting and preparing yellow pigment of pagodatree flower |
| CN102018740B (en) * | 2009-09-11 | 2012-05-23 | 凌沛学 | Medicinal composition containing extracts of leaves of helianthus and application of the same |
-
1988
- 1988-05-03 CN CN88102328A patent/CN1014149B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1031706A (en) | 1989-03-15 |
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