Preparation process of agarwood essential oil

A kind of technology of agarwood essential oil and agarwood, which is applied in the direction of essential oil/fragrance, fat production, etc., which can solve the problems of low safety, high cost of equipment and related instruments, and large number of crushed agarwood wood

Inactive Publication Date: 2018-04-13
杨敦阶
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] 1. The organic reagents are mainly petroleum ether, n-hexane, chloroform, diethyl ether or ethyl acetate, which are highly toxic; while using ethanol microwave or enzyme extraction, the safety is low or the cost is high
[0019] 2. For supercritical carbon dioxide extraction, the cost of equipment and related instruments is relatively high. No relevant research has been done on whether ultra-low temperature has an impact on the main components of this product. Although a high yield can be obtained, the price of the produ

Method used

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  • Preparation process of agarwood essential oil
  • Preparation process of agarwood essential oil
  • Preparation process of agarwood essential oil

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0076] Example 1

[0077] The preparation method, the steps are as follows:

[0078] Step 1 Agarwood powder: 95% ethanol=1:10; heating until the ethanol slightly boils; condensing and refluxing and stirring for 1.5-2.5 hours; naturally cooling to room temperature; suction filtration, and recovering the filtrate;

[0079] Step 2 Extract the powder cake twice after suction filtration, the method is the same as Step 1;

[0080] Step 3 Extract the powder cake three times after suction filtration, the method is the same as Step 1;

[0081] Step 4 Combine the three filtrates and let stand for 24 hours;

[0082] Step 5: After standing still, the filtrate is suction filtered to remove solids. When the filtrate is concentrated under reduced pressure until sand is formed, stop the concentration. Take out the concentrated solution. There is brown insoluble matter at the bottom. Rinse it with 95% ethanol and combine it into the concentrated solution. Add 10-20% propylene glycol (stabilizer) based o...

Example Embodiment

[0083] Example 2

[0084] The preparation method, the steps are as follows:

[0085] Step 1: Agarwood powder: water=1:10; heating until the water boils slightly; stirring under reflux for 1.5-2.5 hours; cooling to room temperature; suction filtration to recover the filtrate;

[0086] Step 2 Extract the powder cake twice after suction filtration, the method is the same as Step 1;

[0087] Step 3 Extract the powder cake three times after suction filtration, the method is the same as Step 1;

[0088] Step 4 Combine the three filtrates; let stand overnight;

[0089] Step 5: After standing, suction filtration to remove a small amount of solid impurities; the filtrate is concentrated under reduced pressure at 60-65°C until the solution is turbid, and the concentration is stopped, and the concentrated solution is obtained after filtration.

Example Embodiment

[0090] Example 3

[0091] The preparation method, the steps are as follows:

[0092] Step 1 Agarwood powder (150-300 mesh): water=1:10; heating until the water boils slightly; reflux and stirring for 1.5-2.5 hours; cooling to room temperature; suction filtration to recover the filtrate;

[0093] Step 2 Extract the powder cake twice after suction filtration, the method is the same as Step 1;

[0094] In step 3, after suction filtration, the powder cake is extracted for the third time using 95% ethanol as a solvent, and the method is the same as that in step 1, to obtain an ethanol extract, and recover the ethanol to obtain an alcohol extract;

[0095] Step 4 Combine the two water-extracted filtrates, and let them stand overnight in a sealed container;

[0096] Step 5: After standing still, the filtrate is filtered to remove a small amount of impurities; the filtrate is concentrated under reduced pressure at 60-65°C until the solution is turbid, and the concentration is stopped. The concen...

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Abstract

The invention relates to a preparation method of agarwood essential oil. The method comprises the following steps: step 1, mixing agarwood powder with a solvent and heating until the mixture is boiling slightly, wherein the ratio of the agarwood powder to the solvent is 1: 10; refluxing and stirring for 1.5-2.5 hours; naturally cooling for 20-30 minutes, and continuing cooling until solid is separated out; filtering to obtain solid powder and recycling filtrate; step 2, secondarily extracting the solid powder obtained by filtering with a solvent by a method which is the same as the method in the step 1; step 3, carrying out tertiary extraction on the filtered solid powder by using a solvent by a method which is the same as the method used in the step 1; step 4, merging filtrates obtained by three-time extraction, and standing for 12-24 hours in a closed environment at the room temperature; step 5, after standing, filtering the filtrates, filtering out solid, and collecting the filtrates; and step 6, heating concentrated filtrates, stopping heating until sand rising, filtering to obtain a concentrated solution, and mixing uniformly to obtain the agarwood essential oil.

Description

Technical field: [0001] The invention relates to the extraction of spices, in particular to the extraction of aromatic oils, in particular to a preparation method of agarwood essential oil. Background technique: [0002] Agarwood is native to thirteen Southeast Asian countries including northern India, Laos, Cambodia, Malaysia, Indonesia, Vietnam and China. These trees are often infested with fungi that slowly form an aromatic combination of resin and wood dust commonly known as aloeswood, agarwood and trichoderma. [0003] Agarwood essential oil is an oily substance with certain aroma and volatility extracted from agarwood. It is the oil, fat, alcohol, wax, terpene and other substances obtained after the aromatic components of agarwood are refined and concentrated. Agarwood essential oil has multiple Efficacy, such as: improving aura, relieving stress, sleeping and anti-depression, regulating body and mind, and promoting body metabolism, etc. Adding a few drops of agarwoo...

Claims

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Application Information

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IPC IPC(8): C11B9/02
CPCC11B9/022C11B9/025
Inventor 杨敦阶
Owner 杨敦阶
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