CN101735647A - Method for extracting ipomoes batatas L. pigment - Google Patents
Method for extracting ipomoes batatas L. pigment Download PDFInfo
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- CN101735647A CN101735647A CN200910312456A CN200910312456A CN101735647A CN 101735647 A CN101735647 A CN 101735647A CN 200910312456 A CN200910312456 A CN 200910312456A CN 200910312456 A CN200910312456 A CN 200910312456A CN 101735647 A CN101735647 A CN 101735647A
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- rhizoma dioscoreae
- dioscoreae esculentae
- pigment
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- extracting method
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Abstract
The invention discloses a method for extracting ipomoes batatas L. pigment, which comprises the following steps: selecting and cleaning the fresh ipomoes batatas L., and draining the ipomoes batatas L.; quick-freezing the ipomoes batatas L. and then putting the ipomoes batatas L. into a refrigeration storage for storing; during processing, directly crushing the quick-frozen ipomoes batatas L. without unfreezing; and putting the crushed ipomoes batatas L. into a stirring tank, and adding leach liquor into the stirring tank; and stirring the mixture, and extracting the pigment. The invention discloses the method for extracting the ipomoes batatas L. pigment, which prolongs the storage time and meanwhile keeps the stability of the natural pigment by quick-freezing and storing the fresh ipomoes batatas L. Compared with the traditional method, the extraction rate of the natural pigment of the quick-frozen stored ipomoes batatas L. is greatly improved.
Description
Technical field
The present invention relates to natural pigment production technique field, particularly a kind of extracting method of Rhizoma Dioscoreae esculentae pigment.
Background technology
Rhizoma Dioscoreae esculentae claims purple potato again, and potato meat is purple and except that the nutritive ingredient with common sweet potato, is rich in anthocyanidin to intense violet color, and higher pharmaceutical use is arranged, and is a kind of desirable crop easy, dietotherapeutic of cultivating.In recent years, extremely sell well in international, domestic market, the market development prospect is very wide.Contained anthocyanidin is a kind of natural colorant in the purple sweep potato, and the domestic and international market demand is bigger.
China is obtaining remarkable progress aspect the Rhizoma Dioscoreae esculentae extraction pigment, extractive technique reaches its maturity, add Rhizoma Dioscoreae esculentae output height, wide adaptability, therefore compare that the anthocyanidin that extracts in the Rhizoma Dioscoreae esculentae has advantages such as raw material sources are easy, pigment production is high, extraction cost is low with Pericarpium Vitis viniferae, black rice etc.Therefore natural food colour safety, nontoxic, the free from extraneous odour of producing with Rhizoma Dioscoreae esculentae, bright in luster, and have certain nutrition and pharmacological action, at aspects such as food, beverage, makeup, medicine bigger application potential is arranged.
But owing to reasons such as temperature, humidity, disease and pests, for a long time, the storage of sweet potato becomes puzzlement people's major issue.Traditional cellar stores, and has problems such as storage capacity is few, perishable, the storage time is short.Because storage time is short, influenced the industrialization processing of Rhizoma Dioscoreae esculentae, most of Rhizoma Dioscoreae esculentae pigment manufacturing enterprise can only produce 2-3 month.Simultaneously, because Rhizoma Dioscoreae esculentae is under state of nature in the storage process, pigment content reduces gradually, and the laboratory tracking monitor shows that storing a month pigment content maximum under the natural condition of Rhizoma Dioscoreae esculentae results back reduces by 50.2%, has influenced the extraction effect of Rhizoma Dioscoreae esculentae pigment greatly.
Summary of the invention
The novel method that the object of the present invention is to provide a kind of Rhizoma Dioscoreae esculentae pigment to extract stores by fresh Rhizoma Dioscoreae esculentae being carried out quick-frozen, has prolonged the storage time, has kept the stability of natural pigment simultaneously.Compare with traditional method, the natural pigment extraction yield of the Rhizoma Dioscoreae esculentae that stores through quick-frozen significantly improves.
The present invention is achieved in that
A kind of extracting method of Rhizoma Dioscoreae esculentae pigment, its extraction step is as follows:
1, select that fresh Rhizoma Dioscoreae esculentae cleans, draining handles,
2, store going into freezer after the Rhizoma Dioscoreae esculentae quick-frozen of handling well, quick freezing temperature is subzero 15-30 ℃, and the quick-frozen time is 12-48 hour, and storing temp is subzero 10-30 ℃,
3, quick-frozen is good Rhizoma Dioscoreae esculentae is directly pulverized without thawing, the granularity of pulverizing≤(2mm * 2mm),
4, the liquid after will pulverizing is squeezed in the stirred pot, and implantation concentration is 8 ‰ citric acid vat liquors in stirred pot, the citric acid vat liquor with pulverize after the weight ratio of Rhizoma Dioscoreae esculentae be 5: 1,
5, stir the extraction pigment again, churning time was at 1-5 hour.
Mechanism of the present invention is Rhizoma Dioscoreae esculentae low-temperature storage after quick-frozen, prevents the decomposition of microorganism and the oxidative degradation of Rhizoma Dioscoreae esculentae pigment; Quick-frozen has kept the original weave construction of Rhizoma Dioscoreae esculentae, has stopped the breathing of Rhizoma Dioscoreae esculentae, has reduced the consumption of nutritive substance; The quick-frozen Rhizoma Dioscoreae esculentae is directly pulverized, and has destroyed histocyte fully, makes the very easily stripping of pigment in the tissue, adopts crushing technology to increase the contact area of cell and extracting solution simultaneously, improves the pigment extraction yield.
The beneficial effect that the present invention produces:
The present invention has improved the quality of Rhizoma Dioscoreae esculentae raw material, suppresses rotting of Rhizoma Dioscoreae esculentae, prolongs the process period of Rhizoma Dioscoreae esculentae.
Does the present invention show that through production practice low-temperature storage is for up to 5 after the Rhizoma Dioscoreae esculentae quick-frozen? individual month, the quick-frozen sweet potato was directly pulverized the extraction yield of pigment has been improved more than 20%.
Extract by carrying out pigment again after the Rhizoma Dioscoreae esculentae after freezing is directly pulverized, improved productivity effect, the Powdered waste residue of generation helps the extraction of starch, albumen etc., and then provides favourable condition to Rhizoma Dioscoreae esculentae comprehensive utilization exploitation.
Embodiment
Fresh Rhizoma Dioscoreae esculentae is selected, reject to rot and rotten after send in the cleaning machine and clean, draining, packing then, take by weighing one ton of Rhizoma Dioscoreae esculentae subzero 15-30 ℃ quick-frozen 12-48 hour, the Rhizoma Dioscoreae esculentae that quick-frozen is good places a subzero 10-30 ℃ freezer to store.
Dispose 5 tons of 8 ‰ citric acid vat liquors, 1 ton of refrigerated Rhizoma Dioscoreae esculentae is direct without thawing
Pulverize with pulverizer, Rhizoma Dioscoreae esculentae limit adding vat liquor is poured on the limit in the crushing process, and the granularity of pulverizing≤(2mm * 2mm), the liquid after pulverizing is squeezed in the stirred pot stirs and extracted 1-5 hour.
Adopt new technology and compare with traditional chopping technology, shortened extraction time, simplify leaching process, the pigment extraction yield improves about 5%.
Claims (8)
1. the extracting method of a Rhizoma Dioscoreae esculentae pigment is characterized in that carrying out as follows:
1) select that fresh Rhizoma Dioscoreae esculentae cleans, draining handles;
2) store going into freezer after the Rhizoma Dioscoreae esculentae quick-frozen of handling well;
3) quick-frozen is good Rhizoma Dioscoreae esculentae is directly pulverized without thawing;
4) Rhizoma Dioscoreae esculentae after will pulverizing is squeezed in the stirred pot, and injects vat liquor in stirred pot;
5) stir, extract pigment.
2. the extracting method of Rhizoma Dioscoreae esculentae pigment as claimed in claim 1 is characterized in that quick freezing temperature is subzero 15-30 ℃.
3. the extracting method of Rhizoma Dioscoreae esculentae pigment as claimed in claim 1 is characterized in that the quick-frozen time is 12-48 hour.
4. the extracting method of Rhizoma Dioscoreae esculentae pigment as claimed in claim 1 is characterized in that the Rhizoma Dioscoreae esculentae storing temp after the quick-frozen is subzero 10-30 ℃.
5. as the extracting method of described any Rhizoma Dioscoreae esculentae pigment of claim 1 to 4, it is characterized in that the granularity pulverized≤(2mm * 2mm).
6. as the extracting method of described any Rhizoma Dioscoreae esculentae pigment of claim 1 to 4, it is characterized in that vat liquor is 8 ‰ citric acids.
7. as the extracting method of described any Rhizoma Dioscoreae esculentae pigment of claim 1 to 4, the weight ratio of the Rhizoma Dioscoreae esculentae after it is characterized in that the citric acid vat liquor and pulverizing is 5: 1.
8. as the extracting method of described any Rhizoma Dioscoreae esculentae pigment of claim 1 to 4, it is characterized in that churning time was at 1-5 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910312456A CN101735647A (en) | 2009-12-29 | 2009-12-29 | Method for extracting ipomoes batatas L. pigment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910312456A CN101735647A (en) | 2009-12-29 | 2009-12-29 | Method for extracting ipomoes batatas L. pigment |
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| Publication Number | Publication Date |
|---|---|
| CN101735647A true CN101735647A (en) | 2010-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910312456A Pending CN101735647A (en) | 2009-12-29 | 2009-12-29 | Method for extracting ipomoes batatas L. pigment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160142A (en) * | 2013-04-09 | 2013-06-19 | 华南师范大学 | Application of quercetin in improving pigment stability of purple sweet potatoes |
| CN105199425A (en) * | 2015-10-12 | 2015-12-30 | 南京农业大学 | Extraction method of cyanidin |
| CN105623305A (en) * | 2016-02-29 | 2016-06-01 | 苏州市贝克生物科技有限公司 | Extraction and purification method for purple sweet potato pigment |
| CN112442285A (en) * | 2019-08-27 | 2021-03-05 | 湖南省天香生物科技有限责任公司 | Preparation method of purple sweet potato pigment |
-
2009
- 2009-12-29 CN CN200910312456A patent/CN101735647A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160142A (en) * | 2013-04-09 | 2013-06-19 | 华南师范大学 | Application of quercetin in improving pigment stability of purple sweet potatoes |
| CN105199425A (en) * | 2015-10-12 | 2015-12-30 | 南京农业大学 | Extraction method of cyanidin |
| CN105623305A (en) * | 2016-02-29 | 2016-06-01 | 苏州市贝克生物科技有限公司 | Extraction and purification method for purple sweet potato pigment |
| CN112442285A (en) * | 2019-08-27 | 2021-03-05 | 湖南省天香生物科技有限责任公司 | Preparation method of purple sweet potato pigment |
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Application publication date: 20100616 |