Method for extracting carthamin yellow and carthamin from safflower

A technology of safflower yellow pigment and extraction method, which is applied in the field of extracting safflower yellow pigment and red pigment, can solve the problems that are not easy to be applied to large-scale industrial production, large yellow pigment loss, unfavorable industrial production, etc. Large-scale production, the price can be recycled and reused, and the effect of increasing the value of use

Active Publication Date: 2011-04-27
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both CN1422616 and CN1640392 disclose the extraction method of water extraction and alcohol precipitation, which is combined with macroporous adsorption resin column chromatography and polyamide adsorption method to obtain hydroxy safflower yellow A. Long and complex, difficult to apply, not easy to apply to large-scale industrial production
CN1475272 adopts the preparation process of "extraction-separation-alcohol precipitation-purification-repurification-s

Method used

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  • Method for extracting carthamin yellow and carthamin from safflower
  • Method for extracting carthamin yellow and carthamin from safflower

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Take 1 kg of safflower raw material, remove the impurities (branches, leaves, etc.) in it, put it evenly in a container, place it in a microwave device with a frequency of 1500 MHz, and dry and sterilize it at 30 ° C for 8 minutes. Then put the treated safflower material into the reactor, add 8kg of deionized water, and carry out liquid-solid separation after stirring for 6h, then wash the solid insolubles twice with 3kg of deionized water respectively, and combine all the extracts to obtain Safflower Yellow Extract. Put the solid insoluble matter obtained above into a reactor, add 6 kg of boric acid-potassium chloride-sodium hydroxide buffer solution with pH=8, and stir for 6 hours, then carry out solid-liquid separation, and then wash with 2 kg of the above-mentioned alkaline buffer solution The solid matter was collected for 3 times, and all the extracts were combined to obtain the red pigment extract. The obtained extracts were respectively concentrated with revers...

Embodiment 2

[0026] Take 2 kg of safflower raw material, remove the impurities (branches, leaves, etc.) in it, put it evenly in a container, place it in a microwave device with a frequency of 2000 MHz, and dry and sterilize it at 40 ° C for 5 minutes. Then put the treated safflower material into the reactor, add 20kg of distilled water, stir for 8 hours, and then carry out liquid-solid separation, then wash the solid insoluble matter with 5kg of distilled water for 3 times, and combine all the extracts to obtain the safflower yellow pigment extract. Put the solid insoluble matter obtained above into a reactor, add 15 kg of disodium hydrogen phosphate-sodium hydroxide buffer solution with pH=12, and stir for 10 h, then carry out solid-liquid separation, and then wash the solid with 6 kg of the above-mentioned alkaline buffer solution 2 times, and all the extracts were combined to obtain the red pigment extract. The obtained extracts were respectively concentrated with reverse osmosis polya...

Embodiment 3

[0028] Take 2.5 kg of safflower raw material, remove the impurities (branches, leaves, etc.) in it, put it evenly in the container, place it in a microwave device with a frequency of 2500 MHz, and dry and sterilize it at 50 ° C for 9 minutes. Then put the processed safflower material into the reactor, add 30kg of deionized water, carry out liquid-solid separation after 10h, then wash the solid insolubles 4 times with 5kg of deionized water respectively, and combine all the extracts to obtain the safflower Anthocyanin Extract. Put the solid insolubles obtained above in a reactor, add 10 kg of boric acid-potassium chloride-sodium hydroxide buffer solution with pH=10, and stir for 8 hours, then carry out solid-liquid separation, and then wash with 3 kg of the above-mentioned alkaline buffer solution The solid matter was collected 4 times, and all the extracts were combined to obtain the red pigment extract. The obtained extracts were respectively concentrated with reverse osmosi...

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Abstract

The invention relates to a method for simultaneously extracting carthamin yellow and carthamin from safflower. The method comprises the following steps of: drying and sterilizing the safflower which serves as a raw material by using microwave at a low temperature to obtain a safflower material; leaching the safflower material for several times by taking water as a solvent; performing solid-liquid separation to obtain carthamin yellow extract; leaching a solid insoluble substance by using alkaline buffer solution to obtain carthamin extract; and finally performing reverse osmosis concentration on the carthamin yellow extract and the carthamin extract respectively, and freeze-drying to obtain a carthamin yellow and carthamin product. The method has the advantages of simple extraction process, easiness of operation, high extraction rate and convenience of industrial production, and the utilization value of the safflower can be greatly improved after the obtained product is used for dyeing.

Description

technical field [0001] The invention relates to a method for extracting active ingredients from plants, in particular to a method for extracting safflower yellow and red pigments from Compositae safflower. Background technique [0002] Safflower is the dried flower of safflower, an annual herb of Compositae. It is a traditional Chinese medicine for promoting blood circulation and removing stasis. , high blood pressure and cerebral hemorrhage and other diseases have achieved certain curative effect. Studies in recent years have confirmed that the active ingredients of safflower are mainly concentrated in the water-soluble yellow pigment part. Preliminary analysis shows that safflower yellow pigment is a mixture of three water-soluble components: hydroxyl safflower yellow A, safflower yellow B, red Anthocyanin C. Studies have shown that among the water-soluble red yellow pigments, hydroxysafflor yellow-A (hydroxysafflor yellow-A) has the highest content and is the most effec...

Claims

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Application Information

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IPC IPC(8): C09B61/00C07D493/04C07D309/10
Inventor 管国锋阮伸杨操
Owner NANJING UNIV OF TECH
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