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Process for enriching and purifying capsaicin with macroporous adsorption resin

A technology of capsaicin and adsorption resin, which is applied in the field of natural capsaicin crystallization, can solve the problems of waste liquid and gas pollution, high cost of equipment and high requirements for industrial equipment, and achieve the effects of large adsorption capacity, easy operation and good mechanical strength

Inactive Publication Date: 2003-01-22
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many capsaicin-containing extracts or capsaicin crystals obtained by organic solvent extraction, but all of them need to use a variety of flammable and explosive organic solvents, which have high requirements for industrial equipment, complicated operation process, and low product yield. , waste liquid and waste gas seriously pollute the environment and other deficiencies
The disadvantage of supercritical fluid extraction is the high cost of equipment and serious energy consumption.
The main disadvantage of column chromatography is that the silica gel cannot be regenerated and the production cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 200g of dry peel powder of Hunan Changsha red pepper, extract 3 times with 800ml of acetone at 30°C under constant stirring, each time for 1h, filter, combine the filtrates, concentrate and recover acetone. After the concentrate is dissolved in 30ml of 95% ethanol (V / V), mix it with HPD100 resin with a dry weight of 25g, add 400ml of water, stir at a constant speed (30rpm) for 2h, rinse with 1000ml of water, and use a flow rate of 400ml / h. 85% (V / V) ethanol 300ml rinses, and flow rate is 75ml / h, concentrates ethanol eluent, promptly obtains containing capsaicin extract 1.86g, yield 0.93%, and HPLC method records dihydrocapsaicin, The total capsaicin content is 38.25%.

Embodiment 2

[0026] Weigh 200 g of dried red pepper peel powder, extract 2 times with 1200 ml of 50% (V / V) ethanol at 60 ° C under constant stirring, each time for 1 h, filter, combine the filtrates, concentrate and recover ethanol. After the concentrate was dissolved in 40ml of 95% ethanol (V / V), it was mixed with HPD130 resin with a dry weight of 22.5g, and 400ml of water was added, stirred at a constant speed (30rpm) for 2h, washed with 1000ml of water, and the flow rate was 400ml / h. Rinse with 270ml of 95% (V / V) ethanol, and flow rate is 120ml / h, concentrates ethanol eluent, promptly obtains containing capsaicin extract 1.78g, yield 0.89%, and HPLC method records dihydrocapsaicin in the extract , The total content of capsaicin is 38.64%.

Embodiment 3

[0028] Weigh 200 g of dried red pepper peel powder, extract 3 times with 5 times the weight of 80% ethanol at 60 ° C under constant stirring, each time for 1 h, filter, combine the filtrates, concentrate and recover ethanol. After the concentrate is dissolved in 40ml of 95% ethanol (V / V), mix it with HPD300 resin with a dry weight of 20g, add 400ml of water, stir at a constant speed (30rpm) for 3h, rinse with 1000ml of water, and use a flow rate of 400ml / h. Rinse with 120ml of methanol, the flow rate is 50ml / h, and concentrate the methanol eluate to obtain 1.88g of capsaicin-containing extract, with a yield of 0.94%. The total content of dihydrocapsaicin and capsaicin in the extract was determined to be 37.35% by HPLC.

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Abstract

The present invention relates to the process of extracting capasaicin from chili fruit or peel and preparing natural capsaicin crystal. Capsaicin is obtained through organic solvent extraction of thespicy component from chili fruit or peel, depressing concentration and separation and purification with macroporous adsorption resin. Liquid chromatographic test shows that the extract has total content of capsaicin and dihydrocapsaicin up to 33%. Re-crystallizing the macroporous adsorption resin purified extract may obtain natural capsaicin crystal with capsaicin, dihydrocapsaicin and nordihydrocapsaicin in the total content up to 97%.

Description

technical field [0001] The invention relates to a method for extracting capsaicin-containing extract from capsicum fruit or pericarp by a macroporous adsorption resin method, and separating and purifying the extract to prepare natural capsaicin crystals. Background technique [0002] Macroporous adsorption resin is a kind of cross-linked polymer without ion-exchange groups. It has stable physical and chemical properties and is insoluble in acids, alkalis and organic solvents. It can concentrate and separate organic matter and is not affected by inorganic salts, strong ions and low Interference of molecular compounds. Macroporous adsorption resin selectively adsorbs organic substances through physical adsorption to achieve the purpose of separation and purification. According to the surface properties of the resin, it can be divided into three categories: non-polar, medium polar and polar. [0003] my country is one of the first countries ...

Claims

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Application Information

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IPC IPC(8): C07C231/24C07C235/34
Inventor 杨得坡王冬梅庞志清王发松
Owner SUN YAT SEN UNIV
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