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Extraction method for extracting agilawood essential oil

A kind of technology of agarwood essential oil and extraction method, applied in the direction of essential oil/fragrance, fat production, etc., can solve the problem of single fragrance, achieve the effect of light and elegant fragrance, rich fragrance, and increase the extraction yield

Active Publication Date: 2021-05-14
HAINAN LIYAOTANG BIOTECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The essential oil extracted by the supercritical extraction method has no head fragrance and tail fragrance, and the fragrance is very single

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Take 10 kg of raw material of Agarwood chinensis, grind it into powder, and extract it by simultaneous distillation and extraction, heating at 100°C, and distillation for 8 hours, to obtain Fraction 1 (39 grams) of Agarwood chinensis essential oil. Take out the distilled Chinese agarwood powder and carry out supercritical extraction. The extraction agent is carbon dioxide. 2 The flow rate was 210 L / h, and the fraction 2 (55 grams) of the essential oil of Agarwood chinensis was obtained. Fraction 1 and Fraction 2 essential oils were mixed with anhydrous Na 2 SO 4 After drying and dehydration treatment, the essential oil of Agarwood chinensis was obtained, 86 grams, with an oil yield of 0.86%.

Embodiment 2

[0025] Take 10 kg of raw material of Agarwood chinensis, pulverize it into powder, extract it by simultaneous distillation and extraction, heat at 90°C, and distill for 6 hours to obtain 1.35 grams of essential oil fraction of Agarwood chinensis. Take out the distilled Chinese agarwood powder and carry out subcritical extraction. Propane is used as the extraction agent, the flow rate is 200-220L / h, the extraction pressure is 1.0MPa, the extraction temperature is 65°C, the time is 120min, and the separation temperature is 55°C. After separation for 120 minutes, 2, 58 grams of the essential oil fraction of Agarwood chinensis were obtained after extraction and separation. The fraction 1 and fraction 2 essential oils were mixed, subjected to centrifugal dehydration treatment, and the rotation speed was set to 5000r / min to obtain the essential oil of Agarwood chinensis, 82 grams, with an oil yield of 0.82%.

Embodiment 3

[0027] Take 10 kg of raw material of Agarwood chinensis, grind it into powder, and extract it by simultaneous distillation and extraction, heating at 95°C, and distillation for 5 hours, to obtain 1.37 grams of essential oil fraction of Agarwood chinensis. Take out the distilled Chinese agarwood powder, and carry out organic solvent extraction, the extraction reagent is 95% ethanol, heat and reflux extraction 3 times, each time 1.5h, heating temperature 70°C, the extract is concentrated to a solid-liquid ratio of 1:1; extraction reagent It is n-butane, add 2 times the amount of extraction reagent, extract 5 times, each extraction is 3h, and the extract is concentrated to obtain 2,65 grams of the essential oil fraction of Agarwood chinensis. Fraction 1 and Fraction 2 essential oils were mixed, centrifuged and dehydrated, and the speed setting was turned to 5000r / min to obtain the essential oil of Agarwood chinensis, 91 grams, with an oil yield of 0.91%.

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PUM

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Abstract

The invention provides an extraction method for extracting agilawood essential oil. The extraction method comprises the following steps: crushing agilawood; then utilizing a simultaneous distillation extraction method to obtain an agilawood essential oil fraction 1, wherein the fraction is mainly a sesquiterpenoids component easy to volatilize; then supercritical extraction or subcritical extraction or solvent extraction is performed on the distilled agilawood powder to obtain an agilawood essential oil fraction 2, wherein the fraction is mainly chromone and sesquiterpenoids with the high boiling point; and mixing the essential oil of the fraction 1 and the essential oil of the fraction 2, and refining to obtain the agilawood essential oil. According to the technical scheme, complete aroma components in the aquilaria agallocha can be better extracted, and the aroma characteristic of the aquilaria agallocha is reserved; the first aroma is cool and refreshing, and the penetrating power is strong; the fragrance is quietly elegant and rich; the essential oil is clear in gradation and lasting in fragrance, the extraction yield of the essential oil is improved, and waste of raw materials is reduced.

Description

technical field [0001] The invention relates to the field of essential oil extraction, in particular to an extraction method for extracting the essential oil of agarwood. Background technique [0002] Agarwood is the resinous wood of the Aquilaria plant in the family Thymelae. Qinan is the finest and most precious variety of agarwood, also known as Qinan, Ganan, Ganan, Jialuo, etc., and its English names are Kanankoh, Kyara, Chi-Nan, Qi-Nan, etc., because of its mysterious and elegant fragrance and Rich oil content, the most expensive on the market. The source plant of China-made Aloes sinensis is Agaricaceae. [0003] At present, new varieties of Agarwood have been discovered, including Reke 1, Reke 2 and other names, which can quickly produce agarwood after being injured, and after 1-3 years, the agarwood produced has the quality of Qinan agarwood, oily It is rich and full-bodied, and its chemical composition is consistent with that of Qinan agarwood. The planting cycle...

Claims

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Application Information

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IPC IPC(8): C11B9/02
CPCC11B9/025C11B9/027Y02P20/54
Inventor 杨锦玲
Owner HAINAN LIYAOTANG BIOTECH DEV
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