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Method for producing flavonoids by using pectin-extracted orange peel

A technology of citrus peel and flavonoids, applied in the direction of organic chemistry and the like, can solve the problems of low yield and purity of flavonoids, achieve high yield and purity, and reduce environmental pollution.

Inactive Publication Date: 2010-09-01
YANTAI ANDRE PECTIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention overcomes the deficiencies of the above-mentioned prior art, and provides a method for producing flavonoids by using citrus peel after pectin extraction, mainly solving the problem of low yield and purity when extracting flavonoids in the existing method

Method used

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Examples

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Effect test

Embodiment 1

[0016] Embodiment 1, the citrus peel that has extracted pectin in the industrial production, add the 95% alcohol of 30 times of weight of citrus peel to extract, temperature 90 ℃, extract 5h, extract 3 times, then filter, solid-liquid separation, remove Waste residue, keep the extract, absorb the extract with a macroporous resin, the macroporous resin model is AB-8, then dissolve the flavonoids adsorbed on the resin column with 80% alcohol, and then concentrate the alcohol solution of the flavones, The extract and the alcohol in the concentrate are recovered, and finally the flavonoid concentrate is vacuum-dried to obtain the final product.

[0017] After testing, the yield of flavonoids is 3%, and the purity is 90%.

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PUM

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Abstract

The invention discloses a method for extracting, separating and purifying flavonoids from orange peel. In the method, the method for extracting an organic solvent is adopted and extraction is performed under the most optimal process conditions of extraction temperature of 90 DEG C, extraction time of 5 hours, 3 extraction times, 95 percent of alcohol concentration and a ratio of liquid to material of 1:30. The separation and purification adopt macroporous absorbent resin distributed elution to finally obtain orange flavonoids having purity of 90 percent. The method has the advantages of obtaining relatively higher yield and purity, utilizing industrial wastes, reducing environmental pollution and fulfilling the aim of resource comprehensive utilization.

Description

Technical field: [0001] The invention relates to the technical field of extraction of flavonoids, in particular to a method for producing flavonoids by separating and purifying citrus peels after extracting pectin. technical background: [0002] Citrus peel is also known as tangerine peel. Tao Hongjing said: "Orange peel is good if it is aged for a long time", so it is called tangerine peel. Traditional Chinese medicine believes that tangerine peel has the effects of dispelling cold and resolving phlegm, relieving cough and promoting body fluid, regulating qi and invigorating stomach, and dispelling temperature. Modern medical research shows that orange peel extract has anti-oxidation, anti-aging, anti-tumor, anti-allergic, anti-viral, anti-inflammatory, and prevents cardiovascular diseases and other activities. In fact, the main role is flavonoids. Citrus flavonoids are natural green compounds extracted from citrus peels, which have many potential pharmacological values ​...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D311/40
Inventor 张安明胡晓燕李霖善房德刘冰杜启印杨秀军
Owner YANTAI ANDRE PECTIN
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