Method for extracting coreopsis tinctoria oil resin by using supercritical or subcritical CO2

A subcritical and supercritical technology, which is applied in natural resin refining, pharmaceutical formulations, medical preparations containing active ingredients, etc., can solve the problems of waste of active ingredients and low solubility, improve the dissolution rate and amount, and avoid waste Effect

Inactive Publication Date: 2013-01-09
杨建新
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low solubility of carotenoid pigment components such as lutein in water, the method of using snow chrysanthemum in traditional tea drinking will inevitably lead to the waste of such functional components

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1, 400 grams of snow chrysanthemum is crushed to 10-30 mesh, supercritical CO 2 The extraction conditions are as follows: extraction temperature is 50°C, extraction pressure is 25MPa, extraction carbon dioxide flow rate is 15L / h, extraction time is 3h, analytical separation primary separation pressure is 5MPa, separation temperature is 30°C, and secondary separation pressure is 4.5MPa , the separation temperature was 30° C., and the weight of 24.4 grams of snow chrysanthemum oleoresin rich in lutein and flavonoids was resolved.

Embodiment 2

[0012] Example 2, 400 grams of snow chrysanthemum is crushed to 10-50 mesh, supercritical CO 2 The extraction conditions are as follows: the extraction temperature is 60°C, the extraction pressure is 50MPa, the extraction carbon dioxide flow rate is 20L / h, the extraction time is 3h, the primary separation pressure of analytical separation is 5MPa, the separation temperature is 30°C, and the secondary separation pressure is 4.5MPa , the separation temperature was 30° C., and the weight of 25.7 grams of snow chrysanthemum oleoresin rich in lutein and flavonoids was resolved.

Embodiment 3

[0013] Example 3, 400 grams of snow chrysanthemum is crushed to 30-60 mesh, subcritical CO 2 The extraction conditions are as follows: the extraction temperature is 20°C, the extraction pressure is 15MPa, the extraction carbon dioxide flow rate is 30L / h, the extraction time is 7h, the primary separation pressure of analytical separation is 5MPa, the separation temperature is 30°C, and the secondary separation pressure is 4.5MPa , the separation temperature was 30° C., and the weight of 23.6 grams of snow chrysanthemum oleoresin rich in lutein and flavonoids was resolved.

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Abstract

The invention discloses a method for extracting coreopsis tinctoria oil resin by using supercritical or subcritical CO2. The method comprises the following steps: coreopsis tinctoria is used as raw material and the coreopsis tinctoria oil resin is extracted by using supercritical or subcritical CO2, wherein the extraction temperature is 20-60 DEG C, the extraction pressure is 15-50MPa, the flow rate of extraction carbon dioxide is 10-30L / h, the extraction time is 2-7 hours, analysis and separation are carried out by second-stage pressure reduction, wherein the first-stage separation pressure is 5-10MPa, the second-stage separation pressure is 4-6MPa, both the separation temperatures of the two stages are 20-60 DEG C, and the analyzed component is the coreopsis tinctoria oil resin with rich lutein and flavones. The coreopsis tinctoria oil resin can be widely applied to medical treatment and health care to exert the functions, and avoids waste of the functional components caused by the use of the coreopsis tinctoria in the traditional tea drinking mode; meanwhile, the residual extracted coreopsis tinctoria slag can be used as raw material for tea bags, and the dissolving-out speed and the dissolving-out amount of plant polyphenol in the coreopsis-tinctoria tea bags are obviously improved compared with those of the unextracted coreopsis tinctoria.

Description

technical field [0001] The present invention relates to a kind of preparation method, relate in particular to a kind of supercritical or subcritical CO 2 A method for extracting chrysanthemum oleoresin. Background technique [0002] Snow chrysanthemum, scientific name coreopsis (Coreopsis tinctoria Nuff.), also known as two-color coreopsis, snake eye chrysanthemum. Single, double or semi-double, ligulate flower top yellow or golden yellow, base or middle and lower part reddish brown, tubular flower purplish brown, flowering period from June to September. Coreopsis is native to Florida and Mexico in North America. In 1936, it was brought to Lushan Mountain and Nanyue Mountain as an ornamental plant in my country for cultivation. The whole plant can be used as medicine in addition to being used for viewing. The food coloring extracted from the flower has the functions of clearing heat, detoxifying and lowering blood pressure. The effect. At present, it is widely planted in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09F1/02A61K36/287A61P3/10A61P3/02A61P27/02A61P27/12A61P9/10A61P35/00A61P37/04A23F3/34
CPCY02P20/54
Inventor 杨建新
Owner 杨建新
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