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Process for extracting and refining natural borneol

A natural borneol and process technology, which is applied in the separation/purification of essential oils/fragrance, hydroxyl compounds, and fat production, can solve the problems of inability to improve oil separation efficiency, reduction of primary product yield, increase of impurity products, etc., and achieve loss Small, improve recovery rate, increase the effect of borneol content

Active Publication Date: 2014-10-01
武汉国灸科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although decompression can reduce the sublimation temperature and reduce borneol oxidation, it cannot improve the oil separation efficiency, that is, decompression also reduces the volatilization point of other components except borneol, which may also lead to an increase in impurity products in the product. The appearance is yellowish, and the first-time yield is reduced

Method used

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  • Process for extracting and refining natural borneol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Distill and extract the plant Ai Naxiang in sus304 stainless steel to obtain the primary extract of Ai Naxiang containing water. Send 20kg of the primary extract of Aiinaxiang containing water into a centrifuge for centrifugal dehydration at a speed of 4000rpm, and the oily water is separated from the oil by standing. Spray 0.2wt% sodium dodecyl benzene sulfonate solution (can be sprayed by setting water nozzle in the centrifuge) in the centrifuge again, further wash and remove the residual Aina sesame oil composition in the initial extract of the plant, After being dehydrated by a centrifuge, the product also contains about 26% moisture. Then send it to a vacuum dryer and dry it under the condition of a vacuum degree of 0.03MPa and a temperature of about 60°C. After drying, the moisture content of the product is reduced to below 1%. Then put it into the sublimation crystallization kettle to vacuumize the air in the kettle to 0.01MPa (absolute vacuum), then fill it with...

Embodiment 2

[0024] The plant borneol camphor is distilled and extracted in a glass-lined reactor to obtain the initial extract of borneol camphor containing water, and 20 kg of the initial extract of borneol camphor containing water is sent to a centrifuge for dehydration at a speed of 2000 rpm, and the oily water is separated from the oil by standing . Then spray 0.1wt% fatty acid sucrose ester solution into the centrifuge, further wash and remove the residual liquid oil components in the plant initial extract, and also contain about 26% moisture after dehydration by the centrifuge, and then send it into a vacuum dryer Vacuum degree of 0.03MPa is dried at about 70°C, and the moisture content of the product after drying is reduced to below 1%. Then put it into the sublimation crystallization kettle, pump the air in the kettle to 0.01MPa, fill it with nitrogen to 0.09MPa, raise the temperature to 110°C and keep it for 100 minutes, then raise the temperature to 215°C, stop heating after abo...

Embodiment 3

[0026] Distill and extract the plant Ainaxiang in sus304 stainless steel by conventional methods to obtain 20 kg of the initial extract with a water content of about 50%, and send it to a centrifuge for dehydration at a speed of 4000rpm, and the oily water is separated from the oil after standing. Then spray 0.07wt% AEO9 solution into the centrifuge to further wash and remove the residual liquid oil components in the initial plant extract. After being dehydrated by the centrifuge, it still contains about 26% water, and then sent to a vacuum dryer at about 60°C Dry under vacuum at low temperature. Then put it into the sublimation crystallization kettle, pump the air in the kettle to 0.01MPa, fill it with nitrogen to 0.08MPa, raise the temperature to 120°C for 80 minutes, then raise the temperature to 185°C, stop heating after about 12 hours after the borneol sublimation is completed, and put the crystallization plate Take out the shoveled ice flake crystals.

[0027] The appea...

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Abstract

This invention relates to a process for extracting and refining natural borneol. The process comprises the following steps: 1) carrying out centrifugal dewatering on a primary plant extract with borneol as a main ingredient in a high-speed centrifuge, separating oil from oily water by virtue of standing, then into the primary plant extract spraying a washing liquid, carrying out centrifugal washing to remove residual-liquid-shaped oil components in the primary plant extract, and then carrying out oven-drying on centrifuged and separated solids to remove moisture under a vacuum condition at a low temperature; and 2) throwing the oven-dried primary extract into a sublimate crystallization kettle, vacuumizing, then introducing nitrogen so that the pressure of the system is controlled at 0.04-0.1MPa, raising the temperature to 180-240 DEG C so that the primary extract is sublimated and condensed to obtain the purified borneol. By virtue of the process for extracting and refining natural borneol, the recovery rate of liquid oil components, such as Blumea balsamifera oil of Blumea balsamifera in the primary extranct can be improved; the obtained recrystallized borneol is relatively white, indicators of borneol are higher than those of sliced Blumea balsamifera standard and natural borneol standard in the Chinese Pharmacopoeia (Edition 2010) and the borneol is stable in quality.

Description

technical field [0001] The invention belongs to the field of biochemical industry, and is a process method of extracting high-quality natural borneol and purifying and refining plants such as borneol camphor and ainaxiang. Background technique [0002] Borneo is commonly known as borneol, and natural borneol is a kind of borneol extracted and processed from plants. Due to different sources, there are L-borneol and D-borneol, both of which contain more or less camphor, isoborneol and trace amounts of other volatile oils. As borneol used in medicine and high-grade spices, it is hoped that the content of non-borneol components should be as low as possible. The 2010 edition of the Pharmacopoeia of the People's Republic of China requires that the minimum amount of borneol in Ainaxiang borneol should be greater than 85%, but the current extraction process is difficult. Stable meet this standard requirement. And by borneol camphor gained natural borneol requirement D-borneol 96% ...

Claims

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Application Information

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IPC IPC(8): C07C35/30C07C29/76C11B9/02
CPCC07C29/76C07C2602/20C07C35/30
Inventor 赵雪林
Owner 武汉国灸科技开发有限公司
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