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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 product remains high due to the high cost
[0020] 3. The number of crushed agarwood wood is relatively large, so it is difficult to effectively extract the main components, resulting in waste of agarwood raw materials, which is not conducive to the full use of this scarce medicinal material
[0021] 4. The extraction temperature is not suitable, if the temperature is too high, there will be a risk of degradation of the main components; if the temperature is low, the extraction yield of the main components will not reach the ideal state

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

Embodiment 1

[0077] Preparation method, the steps are as follows:

[0078] Step 1 Agarwood powder: 95% ethanol = 1:10; heat until ethanol slightly boils; condense and reflux and stir for 1.5-2.5 hours; naturally cool down to room temperature; suction filter and recover the filtrate;

[0079] In step 2, after suction filtration, the powder cake is extracted twice, and the method is the same as in step 1;

[0080] In step 3, the powder cake is extracted three times after suction filtration, and the method is the same as in step 1;

[0081] Step 4 merges three filtrates and leaves standstill for 24 hours;

[0082] Step 5 After standing still, the filtrate is suction-filtered to remove the solids. When the filtrate is concentrated under reduced pressure until sanding occurs, stop concentrating and take out the concentrated solution. There are brown insoluble matter at the bottom. Rinse it with 95% ethanol and merge it into the concentrated solution. Add 10-20% propylene glycol (stabilizer) o...

Embodiment 2

[0084] Preparation method, the steps are as follows:

[0085] Step 1 Agarwood powder: water = 1:10; heat until the water boils slightly; reflux and stir for 1.5-2.5 hours; cool down to room temperature; recover the filtrate by suction filtration;

[0086] In step 2, after suction filtration, the powder cake is extracted twice, and the method is the same as in step 1;

[0087] In step 3, the powder cake is extracted three times after suction filtration, and the method is the same as in step 1;

[0088] Step 4 merges three filtrates; Stand overnight;

[0089] Step 5 After standing still, filter with suction to remove a small amount of solid impurities; the filtrate is concentrated under reduced pressure at 60-65°C until the solution is cloudy, stop the concentration, and obtain a concentrated solution after filtration.

Embodiment 3

[0091] Preparation method, the steps are as follows:

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

[0093] In step 2, after suction filtration, the powder cake is extracted twice, and the method is the same as in 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 in step 1 to obtain an ethanol extract, and the ethanol is recovered to obtain an alcohol extract;

[0095] Step 4: Merge the two water extraction filtrates, and seal and let stand overnight;

[0096] After step 5 is allowed to stand, 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 concentrated solut...

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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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