Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Extraction method of Japan cypress essential oil

An extraction method, a technology of cypress essential oil, which is applied in the field of extraction of cypress essential oil, can solve problems such as complex process, achieve the effects of simplifying process, improving extraction yield, and high purity

Pending Publication Date: 2022-03-25
ZHEJIANG KANGLAITE PHARM CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Chinese Patent No. CN102807921A discloses a method of steam distillation combined with supercritical CO2 extraction to prepare essential oils, but the process is relatively complicated

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
  • Extraction method of Japan cypress essential oil
  • Extraction method of Japan cypress essential oil
  • Extraction method of Japan cypress essential oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment l

[0037] A method for extracting cypress essential oil, comprising the following steps:

[0038] (1) Wash the cypress rhizomes and trunks, remove surface sand and soil impurities, then chop them into short wood chips, clean them with drinking water, dry them with a dryer to a water content of 5%, and crush them to 40% after drying. Purpose particle, obtain fine wood powder;

[0039] (2) Put the fine wood powder in a supercritical carbon dioxide extraction device to extract essential oil; set the extraction temperature to 30°C, the extraction pressure to 24Mpa, and the extraction time to 45min; the carbon dioxide flow rate to 55kg / h, the separation pressure to 4.5MPa, and the separation temperature At 45°C, a crude oil was obtained.

[0040] (3) The crude oil is distilled under reduced pressure to remove moisture, the vacuum degree is 0.095MPa, the distillation temperature is (90-95)°C, and the distillation time is 30min.

[0041] (4) The oil obtained by distillation under redu...

Embodiment 2

[0043] (1) Wash the cypress rhizomes and trunks, remove surface sand and soil impurities, then chop them into short wood chips, clean them with drinking water, dry them with a drier until the water content is 6%, and crush them to 20% after drying. Purpose particle, obtain fine wood powder;

[0044] (2) Put the fine wood powder in a supercritical carbon dioxide extraction device to extract essential oil; set the extraction temperature to 25°C, the extraction pressure to 20Mpa, and the extraction time to 1h; the carbon dioxide flow rate to 30kg / h, the separation pressure to 4.5MPa, and the separation temperature At 45°C, a crude oil was obtained.

[0045] (3) The crude oil is distilled under reduced pressure to remove water, the vacuum degree is 0.095MPa, the distillation temperature is (90-95)°C, and the distillation time is 30min.

[0046] (4) The oil obtained by vacuum distillation is removed through a 1 μm microporous membrane to obtain cypress essential oil.

Embodiment 3

[0048] (1) Wash the cypress rhizomes and trunks, remove surface sand and soil impurities, then chop them into short wood chips, clean them with drinking water, dry them with a drier until the water content is 7%, and crush them to 20% after drying. Purpose particle, obtain fine wood powder;

[0049] (2) Put the fine wood powder in a supercritical carbon dioxide extraction device to extract essential oil; set the extraction temperature to 30°C, the extraction pressure to 24Mpa, and the extraction time to 1h; the flow rate of carbon dioxide to 40kg / h, the separation pressure to 4.2MPa, and the separation temperature At 40°C, a crude oil was obtained.

[0050] (3) The crude oil is distilled under reduced pressure to remove water, the vacuum degree is 0.095MPa, the distillation temperature is (90-95)°C, and the distillation time is 30min.

[0051] (4) The oil obtained by distillation under reduced pressure is removed by a 5 μm microporous membrane to obtain cypress essential oil....

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 discloses an extraction method of chamaecyparis obtusa essential oil. The extraction method comprises the following steps: chopping chamaecyparis obtusa into short wood chips for pretreatment, drying and crushing after pretreatment, and extracting essential oil in a supercritical carbon dioxide extraction device after crushing. According to the method disclosed by the invention, the chamaecyparis obtusa is pretreated and then dried and crushed into the fine powder, and the extraction is performed through the supercritical carbon dioxide process, so that the technological process is simplified, the extraction rate is improved, and the chamaecyparis obtusa essential oil with higher purity is obtained.

Description

technical field [0001] The invention relates to a method for extracting plant essential oil, in particular to a method for extracting cypress essential oil. Background technique [0002] Cypress, Platycladus orientalis (Linn.) Franco, is an evergreen tree belonging to the genus Arborvitae of the Cupressaceae family. Also known as cypress, arborvitae, cedar. It is widely distributed in China. [0003] Cypress essential oil is distilled from cypress wood, retaining a woody, slightly citrus aroma. Cypress essential oil is a relaxing and calming essential oil with natural antibacterial properties. The highest content of cypress essential oil is alpha-pinene, which can improve respiratory problems such as colds, coughs, sinuses, etc. [0004] The components of the essential oil extracted from hinoki from different origins are different, and the hinoki essential oil from some origins contains hinokitiol, which can wake up the vitality of the skin. Cypress essential oil can eli...

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
IPC IPC(8): C11B9/02
CPCC11B9/025C11B9/027C11B9/022
Inventor 董建刚宁茂清周锋
Owner ZHEJIANG KANGLAITE PHARM CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com