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Method for producing high purity jasminoidin and high color number gardenia yellow pigment

A technology of gardenia yellow pigment and purification method, which is applied in the production of high-purity geniposide and the extraction field of high color value gardenia yellow pigment, can solve the problems of low yield and color value of gardenia yellow products, waste of resources, etc. Achieve the effects of tinting strength, high safety, and increased added value

Inactive Publication Date: 2006-07-26
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production process of extracting gardenia yellow, the yield and color value of the obtained gardenia yellow product are low, and a large amount of geniposide contained in the residual liquid after the extraction of gardenia yellow is directly discharged with the waste liquid, resulting in resources waste of

Method used

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  • Method for producing high purity jasminoidin and high color number gardenia yellow pigment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment one: total material-liquid ratio is in g / ml by mass / volume:

[0018] In the present invention, the dried gardenia fruit raw material is ground into a powder passing through a 10-mesh sieve through a SF-200C high-speed pulverizer, and 430 g of the dried gardenia fruit powder is accurately weighed, soaked with 60% ethanol solution (weight percentage concentration), wherein the total The ratio of solid to liquid is 1:20, and the extraction is divided into four times, the extraction temperature is 15°C, and the extraction time is 3 hours; the extract is filtered and the alcohol is recovered to obtain 240ml of concentrated solution, and then 240ml of petroleum ether is used to extract and remove impurities three times, 80ml each time . Add the concentrated solution to the macroporous adsorption resin X-5, and use 0%, 10%, 20%, 30%, 35%, 40%, 50%, 60%, 70%, 80%, 95% ethanol in sequence The solution was subjected to gradient elution with an elution volume of 1BV, c...

Embodiment 2

[0022] Embodiment two: total material-liquid ratio is in g / ml by mass / volume:

[0023] Grind the dried fruit of Gardenia jasminoides raw material into a powder passing through a 10-mesh sieve through an SF-200C high-speed pulverizer, accurately weigh 585 g of dried fruit of Gardenia jasmine fruit, soak in distilled water, wherein the total material-to-liquid ratio is 1:25, and soak in 3 times. Extraction, extraction temperature: 30°C, extraction time: 2 hours; filter the extract, concentrate to 340ml, then extract with 340ml petroleum ether to remove impurities, extract three times, 115ml each time; add the concentrated solution to the macroporous adsorption resin X- 5, and carry out gradient elution with distilled water, 10%, 20%, 30%, 35%, 40%, 50%, 60%, 70%, 80%, 95% ethanol solution (weight percent concentration) successively, wash The volume of removal is 1BV, collected in sections, and a small sample is diluted 500 times with distilled water, the absorbance value is meas...

Embodiment 3

[0026] Embodiment three: total material-liquid ratio is in g / ml by mass / volume:

[0027] Grind the dried gardenia fruit raw material into a powder with a 10-mesh sieve through a SF-200C high-speed pulverizer, accurately weigh 500 g of the dried gardenia fruit powder, soak it with 70% ethanol solution (weight percentage concentration), and wherein the total feed liquid Ratio 1:20, extract in four times, extraction temperature: 20°C, extraction time: 4 hours; filter the extract, recover alcohol and concentrate to 300ml, then use 300ml petroleum ether to extract and remove impurities three times, 100ml each time; The concentrated solution was added to the macroporous adsorption resin X-5 (the following conditions are the same as in Example 1).

[0028]The corresponding geniposide fraction was collected, concentrated to 160ml by rotating vacuum, then frozen to -70°C, and vacuum-dried (the absolute vacuum degree: 0.05Mpa, the drying temperature: -40°C, and the drying time: 80 hours...

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Abstract

The invention relates to a extraction of high-purity gardenia glycosides and high color valence gardenin, concretely said is industrialization producing high-purity gardenia glycosides and high color valence gardenin by using macroreticular adsorbent resinous method, silica gel column chromatography. Dealing with the Cape jasmine dried fruit power by using the technique of leaching, concentration, extraction and macroreticular adsorbent resinous, then after vacuum drying, silica gel column chromatography and dehumidification will get white gardenia glycosides or gardenin finished product of high purity. The high purity white gardenia glycosides or gardenin finished product of this invention have the character of using expediently, high security and tinctorial power and so on; the purity of the gardenia glycosides is high; the productive technology is easy, fast, safe and the cost is low, it founds new technology approach to comprehensive use the gardenia resource; getting the gardenia resource to be used efficiently and improving the added value of gardenia product.

Description

technical field [0001] The present invention relates to an extraction method for producing high-purity geniposide and high-color valence gardenia yellow pigment, specifically, the industrial production of high-purity geniposide and high-color geniposide by using macroporous adsorption resin method and silica gel column chromatography Gardenia yellow pigment. Background technique [0002] Gardenia is an evergreen shrub belonging to Rubiaceae Gentianae, which belongs to the dual-use resource of medicine and food. At present, it is often used in food, medicine, feed, chemical industry, etc. It is only used as a raw material for the production of pigments and traditional Chinese medicines in food, and the color price of gardenia yellow is not high and the purity is not enough, which greatly limits the effective development of gardenia resources. and rational use. As a natural food coloring, gardenia yellow is characterized by high safety and huge market potential. With people...

Claims

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Application Information

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IPC IPC(8): C07H17/04C07H1/08C09B61/00
Inventor 陈正行沈荣光
Owner JIANGNAN UNIV
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