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Extraction of natural capsaicine

The technology of a natural capsaicin and an extraction method is applied in the field of preparation of capsaicin, can solve the problems of high alkali treatment temperature, large loss, long phase separation time and the like, and achieves the effects of short production cycle, less loss and simple process method

Inactive Publication Date: 2003-09-03
贵州慧博科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still problems such as long phase separation time, the appearance of a third phase, high alkali treatment temperature, and large losses.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Weigh 50Kg of capsicum essence and put it into the saponification tank, add 60g of active agent, stir it up, then add 150kg of 5% sodium hydroxide solution, react at 29°C for 80 minutes, then add concentrated hydrochloric acid to adjust the system to PH=8.5, then put it into the extraction tank I, add 400g of No. I quick-release agent and 150 liters of ether, extract at 25°C for 30 minutes, let it stand for 15 minutes, clear the interface, separate the ether phase, evaporate and recover the ether in the evaporator, and put the obtained concentrated solution into the extraction cylinder II. Add 100 liters of petroleum ether, extract at 70°C for 45 minutes, add 150 kg of No. 1 purification agent to the separated petroleum ether phase in the purifier, purify for 30 minutes, let stand for 20 minutes, evaporate and concentrate the separated petroleum ether phase , reclaim petroleum ether, and the obtained concentrate is crystallized in n-hexane to obtain 160 g of pure natural...

Embodiment 2

[0069] Weigh 400kg of chili powder and put it into the extraction vat, add 1200 liters of ethanol, extract at 28°C for 90 minutes, then evaporate and concentrate the extraction solution, recover ethanol, put the obtained concentrated solution into the saponification vat, and continue the operation, the process is the same as Embodiment 1, the amount of material added is respectively: 450g of saponification active agent, 120kg of 8% sodium hydroxide solution, 400g of No. II quick release agent and 480 liters of ethyl acetate, leave standstill 20 minutes interface clear analysis, without the third phase, 220 liters of normal ethane, No. 1 purifying agent 160kg, obtain natural capsaicin pure product 150g. Yield 3.75 / 10000.

[0070] Through high-pressure liquid chromatography analysis, capsaicin content:

[0071] Capsaicin 58.97%

[0072] Dihydrocapsaicin 36.80%

[0073] Capsaicin 0.60%

[0074] Capsaicinoids 3.12%.

Embodiment 3

[0076] Take capsicum essence 70kg, put into saponification tank, operation technology is with embodiment 1, and its material add-on is respectively: saponification activator 90g, 6% sodium hydroxide solution 160kg, No. II speed release agent 600g and methyl acetate 200 liters , stand still for 20 minutes and the interface was cleared, and no third phase was produced; 150 liters of sherwood oil, No. II purifying agent 300kg, obtained natural capsaicin pure product 245g. Yield 3.5 / 1000.

[0077] Through high-pressure liquid chromatography analysis, capsaicin content:

[0078] Capsaicin 57.88%

[0079] Dihydrocapsaicin 37.89%

[0080] Capsaicin 0.61%

[0081] Capsaicinoids 3.12%.

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Abstract

A process for extracting natural capsicine from hot pepper powder or the hot pepper extract as the by-product obtained after extracting rutilant pigment from hot pepper features that the alcohol, ethylether, acetone, petroleum ether, or ethyl acetate is used as extractant, a separation accelerator is used to prevent the generation of the third phase, a saponifying activator is used for speeding up saponifying reaction at low temp (28-35 deg.C) and a cleaner is used for stable crystallizing. Its advantages are high purity (more than 99%), and low cost.

Description

technical field [0001] The invention relates to the preparation of capsaicin, in particular to a method for extracting natural capsaicin by using chili powder or capsaicin, a by-product of extracting orange-red pigment from pepper, as raw materials. technical background [0002] The extraction method about natural capsaicin comprises at present: 1) solvent extraction. Using organic solvents to extract capsicum oil and separating capsaicin from the oil, these methods are often accompanied by harsh conditions and cumbersome steps. Some also need adsorption separation columns. The process cycle is long, and most of them are only laboratory extraction or small-scale trial production. Such as Nelson method (J.Ind.Eng.Chem.2,419, (1910)) and Karawya method [Analyst (London), 92 581 (1967)] and Neil.L.Sass method [Food.Chem.25 (6 ), 1419 (1977)]. 2) Carbon dioxide supercritical fluid extraction method, this processing method also must be used in conjunction with solvent method, c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C231/24C07C233/20
Inventor 姚宝书冉庆云陈万伦
Owner 贵州慧博科技开发有限公司
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