CN103160142A - Application of quercetin in improving pigment stability of purple sweet potatoes - Google Patents
Application of quercetin in improving pigment stability of purple sweet potatoes Download PDFInfo
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- CN103160142A CN103160142A CN2013101211132A CN201310121113A CN103160142A CN 103160142 A CN103160142 A CN 103160142A CN 2013101211132 A CN2013101211132 A CN 2013101211132A CN 201310121113 A CN201310121113 A CN 201310121113A CN 103160142 A CN103160142 A CN 103160142A
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- quercetin
- purple sweet
- sweet potato
- pigment
- potato pigment
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Abstract
The invention discloses the application of quercetin in improving the pigment stability of purple sweet potatoes. When in use, quercetin is added in the pigment of purple sweet potatoes, and the adding amount of the quercetin is 10-25% of the mass of the pigment of purple sweet potatoes. The quercetin is cheap and easy to take, the heat resistance and illumination resistance of the pigment of purple sweet potatoes are effectively improved, and the application range is expanded.
Description
Technical field
The invention belongs to the foodstuff additive fields, be specifically related to the application of Quercetin in improving purple sweet potato pigment stability.
Background technology
Food dye is an important class of foodstuff additive, and it comprises synthetic colour and the large class of natural pigment two.Synthetic colour mostly is that the materials such as tar that contain phenyl ring, naphthalene nucleus are synthetic to be made, and has certain toxic side effect.The toxicity problem of synthetic colour more and more is subject to people's attention in recent years, and the consumer orientation is in buying the product of producing with natural pigment.
Compare with synthetic colour, the major advantage of natural pigment is: (1) has no side effect, and is safe; (2) contain the necessary nutritive substance of human body; (3) some natural pigment has certain pharmacological effect effect.But compare with synthetic colour, also there are some defectives in natural pigment: as dyeing power a little less than, responsive to environmental factorss such as light, heat, oxygen, metal ion and the variations of pH value, less stable, when causing using in food, consumption is large, fugitive color, the high in cost of production problem, thus seriously limited the practical application of natural pigment in foodstuffs industry is produced.
Summary of the invention
In order to overcome the defective of purple sweet potato pigment poor stability, the object of the present invention is to provide the application of Quercetin in improving purple sweet potato pigment stability, Quercetin can improve the ability of the heat-resisting and fast light photograph of purple sweet potato pigment, enlarges its use range.
Purpose of the present invention is achieved through the following technical solutions:
The application of Quercetin in improving purple sweet potato pigment stability is in use, adds Quercetin in purple sweet potato pigment;
Preferably, the addition of Quercetin is the 10-25% of purple sweet potato pigment quality.
Mechanism of the present invention is: the main component of purple sweet potato pigment is anthocyanogen; Quercetin is based on intermolecular colouring effect altogether to the provide protection of purple sweet potato pigment stability; namely under the effect of hydrogen bond and non-covalent bonding force; anthocyanogen and Quercetin have formed the mixture of level (being end-to-end) or stacked vertical, thereby have strengthened the colour generation of anthocyanogen.
The present invention has following advantage and effect with respect to prior art:
Quercetin is cheap and easy to get, has effectively improved the ability of the heat-resisting and fast light photograph of purple sweet potato pigment, has enlarged its use range.
Embodiment
The present invention is described in further detail below in conjunction with embodiment, but embodiments of the present invention are not limited to this.
The involved umber of embodiment is parts by weight.
Embodiment 1
The application of Quercetin in improving purple sweet potato pigment stability comprises the following steps:
1 part of purple sweet potato pigment is dissolved in 1000 parts of water, adds the Quercetin of purple sweet potato pigment quality 10%, mixing, regulating the pH value is 2.5.Pigment solution at 80 ℃ of water-bath 2h, in 525nm place its absorption value of mensuration, is respectively A before and after processing
0, A
1, the storage rate of pigment
The purple sweet potato pigment storage rate after 80 ℃ of water-bath 2h that does not add Quercetin is only 78.5%, and the purple sweet potato pigment storage rate after 80 ℃ of water-bath 2h that has added Quercetin is 93.2%.
Embodiment 2
The application of Quercetin in improving purple sweet potato pigment stability comprises the following steps:
1 part of purple sweet potato pigment is dissolved in 1000 parts of water, adds the Quercetin of purple sweet potato pigment quality 15%, mixing, regulating the pH value is 3.4.Pigment solution at 90 ℃ of water-bath 1.5h, in 525nm place its absorption value of mensuration, is respectively A before and after processing
0, A
1, the storage rate of pigment
The purple sweet potato pigment storage rate after 90 ℃ of water-bath 1.5h that does not add Quercetin is only 77.6%, and the purple sweet potato pigment storage rate after 90 ℃ of water-bath 1.5h that has added Quercetin is 92.8%.
Embodiment 3
The application of Quercetin in improving purple sweet potato pigment stability comprises the following steps:
1 part of purple sweet potato pigment is dissolved in 1000 parts of water, adds the Quercetin of purple sweet potato pigment quality 20%, mixing, regulating the pH value is 4.0.Pigment solution at 100 ℃ of water-bath 1h, in 525nm place its absorption value of mensuration, is respectively A before and after processing
0, A
1, the storage rate of pigment
The purple sweet potato pigment storage rate after 100 ℃ of water-bath 1h that does not add Quercetin is only 76.9%, and the purple sweet potato pigment storage rate after 100 ℃ of water-bath 1h that has added Quercetin is 91.6%.
Embodiment 4
The application of Quercetin in improving purple sweet potato pigment stability comprises the following steps:
1 part of purple sweet potato pigment is dissolved in 1000 parts of water, adds the Quercetin of purple sweet potato pigment quality 12%, mixing is regulated pH value to 3.0.Pigment solution is shone 2h under UV-light, in 525nm place its absorption value of mensuration, be respectively A before and after processing
0, A
1, the storage rate of pigment
The purple sweet potato pigment storage rate after UV-irradiation 2h that does not add Quercetin is only 83.5%, and the purple sweet potato pigment storage rate after UV-irradiation 2h that has added Quercetin is 94.2%.
Embodiment 5
The application of Quercetin in improving purple sweet potato pigment stability comprises the following steps:
1 part of purple sweet potato pigment is dissolved in 1000 parts of water, adds the Quercetin of purple sweet potato pigment quality 18%, mixing is regulated pH value to 3.8.Pigment solution is shone 3h under UV-light, in 525nm place its absorption value of mensuration, be respectively A before and after processing
0, A
1, the storage rate of pigment
The purple sweet potato pigment storage rate after UV-irradiation 3h that does not add Quercetin is only 82.6%, and the purple sweet potato pigment storage rate after UV-irradiation 3h that has added Quercetin is 95.1%.
Embodiment 6
The application of Quercetin in improving purple sweet potato pigment stability comprises the following steps:
1 part of purple sweet potato pigment is dissolved in 1000 parts of water, adds the Quercetin of purple sweet potato pigment quality 25%, mixing is regulated pH value to 4.5.Pigment solution is shone 4h under UV-light, in 525nm place its absorption value of mensuration, be respectively A before and after processing
0, A
1, the storage rate of pigment
The purple sweet potato pigment storage rate after UV-irradiation 4h that does not add Quercetin is only 81.9%, and the purple sweet potato pigment storage rate after UV-irradiation 4h that has added Quercetin is 95.8%.
As can be seen from the above embodiments: Quercetin has improved the storage rate of purple sweet potato pigment under heating and illumination condition effectively, has improved the stability of purple sweet potato pigment.
Above-described embodiment is the better embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, within being included in protection scope of the present invention.
Claims (3)
1. the application of Quercetin in improving purple sweet potato pigment stability.
2. the application of Quercetin according to claim 1 in improving purple sweet potato pigment stability is characterized in that: in use, add Quercetin in purple sweet potato pigment.
3. the application of Quercetin according to claim 2 in improving purple sweet potato pigment stability, it is characterized in that: the addition of described Quercetin is the 10-25% of purple sweet potato pigment quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101211132A CN103160142A (en) | 2013-04-09 | 2013-04-09 | Application of quercetin in improving pigment stability of purple sweet potatoes |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101211132A CN103160142A (en) | 2013-04-09 | 2013-04-09 | Application of quercetin in improving pigment stability of purple sweet potatoes |
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| CN103160142A true CN103160142A (en) | 2013-06-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107955050A (en) * | 2017-12-12 | 2018-04-24 | 江苏省农业科学院 | A kind of auxiliary color extracting method of blackberry anthocyanin extraction assistant agent and blackberry anthocyanin |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4285985A (en) * | 1980-03-25 | 1981-08-25 | The Coca-Cola Company | Process for enhancing the sunlight stability of rubrolone |
| CN101735647A (en) * | 2009-12-29 | 2010-06-16 | 威海华彩盛业生物科技有限公司 | Method for extracting ipomoes batatas L. pigment |
-
2013
- 2013-04-09 CN CN2013101211132A patent/CN103160142A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4285985A (en) * | 1980-03-25 | 1981-08-25 | The Coca-Cola Company | Process for enhancing the sunlight stability of rubrolone |
| CN101735647A (en) * | 2009-12-29 | 2010-06-16 | 威海华彩盛业生物科技有限公司 | Method for extracting ipomoes batatas L. pigment |
Non-Patent Citations (3)
| Title |
|---|
| 聂芊等: "槲皮素磺酸盐结构表征及其对天然色素的稳定作用", 《化学与粘合》, vol. 29, no. 04, 15 July 2007 (2007-07-15), pages 251 - 253 * |
| 聂芊等: "黑米色素的性质及光稳定化剂的研究", 《中国粮油学报》, vol. 17, no. 06, 20 December 2002 (2002-12-20), pages 51 - 54 * |
| 连喜军: "各类抗氧化剂对红曲色素中红色素的护色作用", 《中国食品添加剂》, no. 1, 15 February 2004 (2004-02-15), pages 60 - 62 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107955050A (en) * | 2017-12-12 | 2018-04-24 | 江苏省农业科学院 | A kind of auxiliary color extracting method of blackberry anthocyanin extraction assistant agent and blackberry anthocyanin |
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Application publication date: 20130619 |