CN100460470C - Process for extracting purple sweep potato pigment - Google Patents
Process for extracting purple sweep potato pigment Download PDFInfo
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- CN100460470C CN100460470C CNB200610123451XA CN200610123451A CN100460470C CN 100460470 C CN100460470 C CN 100460470C CN B200610123451X A CNB200610123451X A CN B200610123451XA CN 200610123451 A CN200610123451 A CN 200610123451A CN 100460470 C CN100460470 C CN 100460470C
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- pigment
- sweep potato
- purple sweep
- vacuum
- potato pigment
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Abstract
The invention discloses an extracting method of purple sweet potato pigment, which comprises the following steps: adding water with liquid and quality rate at 1:5-1:20; placing in the heater to boil for 1-4.0h; filtering to remove slag; cooling filtrate to 4- -20 Deg C; centrifuging at high speed; condensing the supernatant to obtain condensed extract liquid; freezing the condensed extract liquid in the vacuum; drying to obtain the powder of purple sweet potato pigment.
Description
(1) technical field
The present invention relates to a kind of method of from purple sweep potato, extracting purple sweep potato pigment.
(2) background technology
Pigment is divided into synthetic colour and natural pigment two big classes according to the difference in its source.Synthetic colour is bright in luster, painted strong, but they mainly belong to the phenyl amines pigment, and during as foodstuff additive, some can form carcinogenic substance beta-naphthylamine and α-chloro naphthols in human body.Simultaneously, cause that the incident such as " Sudan red ", " trans unsaturated fatty acids " of extensive concern makes people recognize the drawback that synthetic colour may bring as foodstuff additive, the human consumer is more and more paid attention to the safety issue of food.At field of food, replace the megatrend that synthetic colour becomes following development of food industry with natural pigment.The natural pigment resource of China is quite abundant, existing in recent years a large amount of R﹠D institution begins to carry out the research and development of natural pigment, all belongs to extraction method of natural pigments as " extracting method of sprengel blueberry pigment " (Chinese patent application number 02149759.1), " extraction method of the microwave of capsaicine and pigment " (Chinese patent application number 02131467.5), " extraction of natural edible rose-bengal pigment " (Chinese patent application number 97107490.9) etc.But the extracting method of the extracting method of present domestic pigment, especially purple sweep potato pigment all adopts the chemical reagent that human body is had potential toxic action, and example hydrochloric acid, sulfuric acid etc. are greatly affected the quality of product.
(3) summary of the invention
The object of the present invention is to provide a kind of extracting method of purple sweep potato pigment.This method is not added any harmful reagent, and technological process is simple, and is easy and simple to handle, quality product height, safety and sanitation.
The inventive method is specific as follows: with the purple sweep potato section, 1:5～1:20 adds entry by the feed liquid mass ratio, puts into the heating container heated and boiled 1～4.0 hour; Filter and remove residue, with filtrate subcooling to 4 ℃～-20 ℃, high speed centrifugation obtains concentrated extracting solution with supernatant concentration; At last the concentrated extracting solution vacuum lyophilization is made the powder of purple sweep potato pigment.
In aforesaid method, 0.1～3 millimeter of the thickness requirement of purple sweep potato section can adopt manual method, also can adopt food-processor to carry out, as adopting the food processor of models such as SQ2130, DJ5000D.Heating container does not have particular requirement, can adopt general pot or the resistant to elevated temperatures container of energy etc.The concrete operations of filter and remove residue are: three layers of gauze on the pad on B, then the mixed solution after the boiling is added filtration, perhaps be placed on above the B with two layers of filter paper, vacuumizing filtration, vacuum tightness are less than or equal to-0.08 normal atmosphere (relative vacuum degree).High speed centrifugation adopts supercentrifuge to finish, and rotating speed is 4500rpm～18000rpm, centrifugation time 10 minutes～30 minutes.If mixed solution is in freezing state and will carries out nature earlier and thaw before the high speed centrifugation.Supernatant concentration is carried out in Rotary Evaporators, and temperature is controlled at 50 ℃～70 ℃, and vacuum tightness is less than or equal to-0.08 normal atmosphere (relative vacuum degree).The vacuum lyophilization of concentrated extracting solution is finished in freeze drier, and its specific requirement is: temperature is controlled at-85 ℃～-60 ℃, and vacuum degree control is at 0.030 mmhg～0.600 mmhg (perfect vacuum degree).
The inventive method compared with prior art has following advantage:
1, do not add any harmful reagent in the extraction process whole process, guarantee that purple pigment is as the foodstuff additive toxicological harmless.
2, this technological process and used equipment are simple, operate simple and easyly, can realize large-scale industrial production.
3, after measured, the look valency that utilizes the pigment dry powder that present method obtains is more than 80, the quality product height.The extraction reagent and the production unit cheapness that are adopted simultaneously, production cost is lower.
(4) embodiment
Embodiment 1:
Earlier with purple sweep potato with flushing with clean water clean after, be cut into the thin slice of 0.1～0.3 mm thick with DJ5000D type multifunctional food processing machine, put into pot by feed liquid mass ratio 1:5 adding distilled water or tap water, essence was boiled 1 hour.Remove solid impurity with three layers of filtered through gauze, placement causes 4 ℃ of refrigerators and takes out centrifugal 30 minutes of 4500rpm after freezing 2 hours rapidly.Under 50 ℃, vacuum tightness-0.08 normal atmosphere (relative vacuum degree) condition, supernatant liquor is rotated evaporation concentration and makes the potato pigment concentrated solution, at 0.600 mmhg pressure (perfect vacuum degree), under-80 ℃ of cold condition to the concentrated solution drying, obtain the purple sweep potato pigment powder, its product carries out the look valency and detects, and detected result is: powder pigment color value E
1% 1cm=97.
Embodiment 2:
Other operation is with example 1, and the feed liquid mass ratio boiled 2.5 hours for the 1:10 essence.Two layers of filter paper is placed on above the B, and vacuumizing filtration, vacuum tightness are less than or equal to-0.08 normal atmosphere (relative vacuum degree).-20 ℃ of Cheng Bing are put in cooling, at room temperature treat ice-out, centrifugal 20 minutes of 12000rpm, under 60 ℃, vacuum tightness-0.1 normal atmosphere (relative vacuum degree) condition, concentrating under reduced pressure, at 0.050 mmhg pressure (perfect vacuum degree), under-60 ℃ of cold condition to the concentrated solution drying, obtain the purple sweep potato pigment powder, its product detected result is: powder pigment color value E
1% 1cm=98.
Embodiment 3:
Other operation is with example 1, and the feed liquid mass ratio boiled 4 hours for the 1:20 essence.-20 ℃ of Cheng Bing are put in cooling, at room temperature treat ice-out, centrifugal 10 minutes of 18000rpm, temperature control concentrates under 70 ℃, vacuum tightness-0.08 normal atmosphere (relative vacuum degree) condition, at 0.030 mmhg pressure (perfect vacuum degree), to the concentrated solution drying, obtain the purple sweep potato pigment powder under-85 ℃ of cold condition, its product detected result is: powder pigment color value E
1% 1cm=100.
Claims (6)
1. the extracting method of a purple sweep potato pigment is characterized in that comprising the steps: at first purple sweep potato being cut into slices, and 1:5～1:20 adds entry by the feed liquid mass ratio, puts into the heating container heated and boiled 1～4.0 hour; Filter and remove residue then, with filtrate subcooling to 4 ℃～-20 ℃, high speed centrifugation obtains concentrated extracting solution with supernatant concentration; At last the concentrated extracting solution vacuum lyophilization is made the powder of purple sweep potato pigment.
2. the method for claim 1 is characterized in that: 0.1～3 millimeter of the thickness requirement of purple sweep potato section, adopt manual section, and perhaps adopt the food processor section of SQ2130 or DJ5000D model.
3. the method for claim 1, it is characterized in that: the concrete operations of filter and remove residue are: three layers of gauze on the pad on Bush's funnel, then the mixed solution after the boiling is added filtration; Perhaps be placed on above Bush's funnel with two layers of filter paper, use the vacuum pump vacuumizing filtration, the relative vacuum degree is less than or equal to-0.08 normal atmosphere.
4. the method for claim 1 is characterized in that: high speed centrifugation adopts supercentrifuge to finish, and rotating speed is 4500rpm～18000rpm, centrifugation time 10 minutes～30 minutes.
5. the method for claim 1, it is characterized in that: supernatant concentration is carried out in Rotary Evaporators, and temperature is controlled at 50 ℃～70 ℃, and vacuum tightness is less than or equal to-0.08 normal atmosphere.
6. as the described method of the arbitrary claim of claim 1～5, it is characterized in that: the vacuum lyophilization of concentrated extracting solution is finished in freeze drier, and temperature is controlled at-60 ℃～-85 ℃, and vacuum degree control is at 0.030 mmhg～0.600 mmhg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610123451XA CN100460470C (en) | 2006-11-10 | 2006-11-10 | Process for extracting purple sweep potato pigment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610123451XA CN100460470C (en) | 2006-11-10 | 2006-11-10 | Process for extracting purple sweep potato pigment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1962765A CN1962765A (en) | 2007-05-16 |
| CN100460470C true CN100460470C (en) | 2009-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610123451XA Expired - Fee Related CN100460470C (en) | 2006-11-10 | 2006-11-10 | Process for extracting purple sweep potato pigment |
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| CN (1) | CN100460470C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101263883B (en) * | 2008-04-28 | 2010-12-01 | 谭宏宇 | Preparation of potato juice freeze-dried powder |
| CN102675912B (en) * | 2012-05-18 | 2014-06-18 | 江西国亿生物科技有限公司 | Method for preparing purple sweet potato pigment |
| CN110024760A (en) * | 2019-05-30 | 2019-07-19 | 卢宇 | A kind of bait additive and preparation method thereof |
| CN112980251A (en) * | 2021-03-19 | 2021-06-18 | 王美霖 | Food-grade natural pigment colored crayon |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09255889A (en) * | 1996-03-27 | 1997-09-30 | Sanei Gen F F I Inc | Production of purple sweet potato pigment |
| JPH10204312A (en) * | 1997-01-20 | 1998-08-04 | Norin Suisansyo Kyushu Nogyo Shikenjo | Method for extracting anthocyanin pigment from potatoes containing anthocyanin pigment |
| CN1441007A (en) * | 2002-02-25 | 2003-09-10 | 青岛大学 | Sweet potato pigment extracting process |
| CN1807516A (en) * | 2006-01-17 | 2006-07-26 | 吴仲贤 | Method for extracting purple yam red colouring matter using membrane separation method |
-
2006
- 2006-11-10 CN CNB200610123451XA patent/CN100460470C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09255889A (en) * | 1996-03-27 | 1997-09-30 | Sanei Gen F F I Inc | Production of purple sweet potato pigment |
| JPH10204312A (en) * | 1997-01-20 | 1998-08-04 | Norin Suisansyo Kyushu Nogyo Shikenjo | Method for extracting anthocyanin pigment from potatoes containing anthocyanin pigment |
| CN1441007A (en) * | 2002-02-25 | 2003-09-10 | 青岛大学 | Sweet potato pigment extracting process |
| CN1807516A (en) * | 2006-01-17 | 2006-07-26 | 吴仲贤 | Method for extracting purple yam red colouring matter using membrane separation method |
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| CN1962765A (en) | 2007-05-16 |
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Granted publication date: 20090211 Termination date: 20091210 |