Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of blackwood essential oil

A technology of mahogany and essential oil, applied in the field of plant extraction, can solve the problems of no report on the patented technology of mahogany essential oil, and achieve the effects of short heating time, high yield and low extraction temperature

Inactive Publication Date: 2019-03-12
DALIAN UNIV OF TECH
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report on the patented technology of using sawdust to prepare rosewood essential oil

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of blackwood essential oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of annatto essential oil, comprising the following steps:

[0024] Step 1: Supercritical CO 2 extraction

[0025] The mahogany sawdust is pulverized into 30 mesh powder with a pulverizer. The pulverized and sieved mahogany powder is weighed to take 500g, mixed with 500g of anhydrous ethanol, stirred evenly, and then put into supercritical CO. 2 In the extraction kettle, the temperatures of the extraction kettle, the separation kettle 1 and the separation kettle 2 were set to 50°C, 45°C and 45°C, respectively. After the cooling temperature of the extraction kettle, separation kettle and storage tank reaches the set temperature respectively, turn on the CO. 2 Cylinder valve, start CO 2 high pressure pump, the CO 2 Into the extraction tank and the separation tank, adjust the opening of the valve, and control the pressure of the extraction kettle, the separation kettle 1 and the separation kettle 2 at 25MPa, 12MPa and 5MPa respectively, CO 2 The fl...

Embodiment 2

[0031] The mahogany sawdust is pulverized into 30 mesh powder with a pulverizer. The pulverized and sieved mahogany powder is weighed to take 500g, mixed with 500g of anhydrous ethanol, stirred evenly, and then put into supercritical CO. 2 In the extraction kettle, the temperatures of the extraction kettle, the separation kettle 1 and the separation kettle 2 were set to 60°C, 55°C and 45°C, respectively. After the cooling temperature of the extraction kettle, separation kettle and storage tank reaches the set temperature respectively, turn on the CO. 2 Cylinder valve, start CO 2 high pressure pump, the CO 2 Into the extraction tank and the separation tank, adjust the opening degree of the valve, and control the pressure of the extraction kettle, the separation kettle 1 and the separation kettle 2 at 35MPa, 14MPa and 5MPa respectively, CO 2 The flow rate was controlled to be 15L / h, and the extraction was performed for 3 hours. The valve at the bottom of the separation kettle ...

Embodiment 3

[0037] The mahogany sawdust was pulverized into 20 mesh powder with a pulverizer. The pulverized mahogany powder was weighed to take 500g, mixed with 500g of ethanol with a volume fraction of 95%, stirred evenly, and then charged into supercritical CO. 2 In the extraction kettle, the temperatures of the extraction kettle, the separation kettle 1 and the separation kettle 2 were set to 55°C, 50°C and 45°C, respectively. After the cooling temperature of the extraction kettle, separation kettle and storage tank reaches the set temperature respectively, turn on the CO. 2 Cylinder valve, start CO 2 high pressure pump, the CO 2 Into the extraction tank and the separation tank, adjust the opening of the valve, and control the pressure of the extraction kettle, the separation kettle 1 and the separation kettle 2 at 20MPa, 10MPa and 5MPa respectively, CO 2 The flow rate was controlled to be 25L / h, and the extraction was performed for 2.5 hours. The valve at the bottom of the separati...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of plant extracting, and discloses a preparation method of a blackwood essential oil. The preparation method specifically comprises the following steps offirstly, adding an entrapping agent into the crushed blackwood chips, and performing supercritical CO2 (carbon dioxide) extracting, so as to obtain an extracting liquid; separating the extracting liquid, and concentrating under the vacuum condition, so as to obtain extract; performing two-stage molecule distillation on the extract, so as to obtain the high-purity blackwood essential oil. The preparation method has the advantages that the supercritical CO2 extracting and molecule distillation techniques are combined; the technology is simple and safe, the residue of solvent is avoided, and thecontinuous scale production is easy.

Description

technical field [0001] The invention belongs to the technical field of plant extraction, and in particular relates to a preparation method of annatto essential oil. Background technique [0002] Rosewood refers to the heartwood of the genus Rosewood, Dalbergia, Persimmon, Thuja and Cassia, including rosewood, rosewood, fragrant wood, black rosewood, red rosewood, Ebony, striped ebony and wenge are 8 major types of wood. Most rosewood has its own unique smell, such as fragrant branch wood has a strong spicy fragrance; rosewood has a clear fragrance; red rosewood has a different sour aroma. Furniture made of mahogany has always been loved by consumers because of its excellent texture, hardness and durability, beautiful shape, solemn elegance, and integration of practicality, viewing, and value preservation. In the process of manufacturing mahogany furniture, a large amount of wood chips will be produced, which are often thrown away as garbage, resulting in a waste of resourc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02
CPCC11B9/02C11B9/025C11B9/027
Inventor 吕文渊宋学志孟玉兰
Owner DALIAN UNIV OF TECH