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Refinement and extraction method of patchouli oil

A technology of patchouli oil and extraction method, which is applied in the direction of essential oil/fragrance, fat production, etc., and can solve problems such as differences

Inactive Publication Date: 2012-05-23
JISHUI COUNTY JINHAI NATURAL SPICE OIL TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There may be significant differences between refined industrialization and laboratory-stage small-scale experiments reported in other literatures

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1, patchouli oil refining extraction method, wherein:

[0019] (1) The leaves of Patchouli are placed in the inner cavity of a jacketed container, add 5-10 times the weight of water for extraction, and the hot steam leads to the jacket and the inner cavity of the container at the same time to collect the volatilized crude extract Condensate of patchouli oil;

[0020] (2) Add 1-3 times the weight of petroleum ether to the condensate of the crudely extracted patchouli oil for extraction, collect the petroleum ether extraction phase, add 1-3 times the weight of ether for the remaining phase, collect the ether extraction phase, and add 1 -3 times the weight of ethyl acetate extraction, collect the ethyl acetate extract phase; heat the petroleum ether extraction phase on a distillation device to recover petroleum ether and collect the remaining liquid A, and then collect the remaining liquid B after heating the ether extraction phase on a distillation device to re...

Embodiment 2

[0022] Embodiment 2, patchouli oil refining extraction method, wherein:

[0023] (1) The leaves of patchouli are placed in the inner cavity of a jacketed container, and 5 times the weight of water is added for extraction, and the hot steam is simultaneously passed into the jacket and the inner cavity of the container, and the volatilized patchouli is collected Condensate of sesame oil;

[0024] (2) Add 1 times the weight of petroleum ether to the condensate of the crudely extracted patchouli oil for extraction, collect the petroleum ether extraction phase, add 1 times the weight of ether for the remaining phase, collect the ether extraction phase, and add 1 times the weight of acetic acid for the remaining phase Ethyl extraction, collecting the ethyl acetate extraction phase; heating the petroleum ether extraction phase on a distillation device to recover petroleum ether, collecting the remaining liquid A, heating the ether extraction phase on a distillation device to recover ...

Embodiment 3

[0026] Embodiment 3, patchouli oil refining extraction method, wherein:

[0027] (1) The leaves of patchouli are placed in the inner cavity of a jacketed container, and 10 times the weight of water is added for extraction, and the hot steam is simultaneously passed into the jacket and the inner cavity of the container, and the volatilized patchouli is collected Condensate of sesame oil;

[0028] (2) Add 3 times the weight of petroleum ether to the condensate of the crudely extracted patchouli oil for extraction, collect the petroleum ether extract phase, add 3 times the weight of ether for the remaining phase, collect the ether extraction phase, add 3 times the weight of acetic acid for the remaining phase Ethyl extraction, collecting the ethyl acetate extraction phase; heating the petroleum ether extraction phase on a distillation device to recover petroleum ether, collecting the remaining liquid A, heating the ether extraction phase on a distillation device to recover ether,...

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PUM

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Abstract

The invention relates to a technology for extracting volatile oil from patchouli, in particular to a refinement and extraction method of patchouli oil. The method mainly comprises the following three steps: (1) steam distillation; (2) extraction of petroleum ether, ethyl ether and ethyl acetate; and (3) reflux extraction at 55-80 DEG C and 20-40Pa, and collection of condensate of the refined patchouli oil. In the method, patchouli alcohol (C15H26O) content in the obtained condensate of the refined patchouli oil is not less than 26.0%; and by adopting various organic extracts, higher yield up to about 4.2-6.5% can be obtained through calculation of weight of patchouli leaves on the premise of guaranteeing the patchouli alcohol content.

Description

technical field [0001] The invention relates to a technology for extracting volatile oil from patchouli, in particular to a refined extraction method of patchouli oil. Background technique [0002] Patchouli alcohol (C 15 h 26 O) content shall not be less than 26.0%. The traditional method is still the steam distillation method, which is to use hot steam to heat the water decoction of patchouli in the container, and then collect the volatilized condensate, which is the crudely extracted patchouli oil. But the bocchiol in the condensate of the crude extraction collected in this way usually only has about 12-18%, which cannot meet the requirements of the Chinese Pharmacopoeia. Needs further refinement. [0003] The refining method can be molecular distillation technology. Supercritical CO 2 technology. Conventional reflow techniques are also possible. However, in the process of refined and industrialized production of patchouli oil, it is necessary to fully consider th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B9/02
Inventor 王大金王智华
Owner JISHUI COUNTY JINHAI NATURAL SPICE OIL TECHCO
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