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

A supercritical fluid extraction process for extracting salidroside

A technology of supercritical fluid and salidroside, which is applied in the preparation of sugar derivatives, the production of bulk chemicals, sugar derivatives, etc., can solve the problems of low extraction yield and low purity of salidroside, and achieve a small particle size. , the effect of improving extraction yield and improving extraction efficiency

Inactive Publication Date: 2017-02-08
西藏自治区生产力促进中心
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned prior art, the three active components of rhodiola, salidroside, polysaccharide and tannin, are all extracted, and the three substances are mixed together, the extraction yield of salidroside is too low, and the purity is not high

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A supercritical fluid extraction process for extracting salidroside, characterized in that: comprising the following process steps:

[0030] A, raw material processing: take dry Rhodiola rosea, pulverize, get Rhodiola rosea powder;

[0031] B, supercritical fluid static extraction: place Rhodiola rosea in a closed container, add entrainer therein, the weight ratio of Rhodiola rosea and entrainer is 1:10-1:14 for the ratio of solid to liquid; Formaldehyde is fumigated for 5-8 hours; then mixed evenly and put into the extraction kettle, pressurized to 40MPa, heated to 75-85°C, and extracted statically for 0.3-0.5 hours; the entrainer 1 consists of n-butanol, methanol, Composed of n-octane and chloroform; the supercritical fluid is composed of toluene and oxyfluoride;

[0032] C. Supercritical fluid dynamic extraction: depressurize to 20MPa, cool to 60-70°C, and extract dynamically for 2-5 hours;

[0033] D. Separation: Put the product obtained in step C in a separation ...

Embodiment 2

[0036] A supercritical fluid extraction process for extracting salidroside, characterized in that: comprising the following process steps:

[0037] A, raw material processing: take dry Rhodiola rosea, pulverize, get Rhodiola rosea powder;

[0038] B, supercritical fluid static extraction: place Rhodiola rosea in a closed container, add entrainer therein, the weight ratio of Rhodiola rosea and entrainer is 1:10-1:14 for the ratio of solid to liquid; Formaldehyde is fumigated for 5-8 hours; then mixed evenly and put into the extraction kettle, pressurized to 40MPa, heated to 75-85°C, and extracted statically for 0.3-0.5 hours; the entrainer 1 consists of n-butanol, methanol, Composed of n-octane and chloroform; the supercritical fluid is composed of toluene and oxyfluoride;

[0039] C. Supercritical fluid dynamic extraction: depressurize to 20MPa, cool to 60-70°C, and extract dynamically for 2-5 hours;

[0040] D. Separation: Put the product obtained in step C in a separation ...

Embodiment 3

[0045] A supercritical fluid extraction process for extracting salidroside, characterized in that: comprising the following process steps:

[0046] A, raw material processing: take dry Rhodiola rosea, pulverize, get Rhodiola rosea powder;

[0047] B, supercritical fluid static extraction: place Rhodiola rosea in a closed container, add entrainer therein, the weight ratio of Rhodiola rosea and entrainer is 1:10-1:14 for the ratio of solid to liquid; Formaldehyde is fumigated for 5-8 hours; then mixed evenly and put into the extraction kettle, pressurized to 40MPa, heated to 75-85°C, and extracted statically for 0.3-0.5 hours; the entrainer 1 consists of n-butanol, methanol, Composed of n-octane and chloroform; the supercritical fluid is composed of toluene and oxyfluoride;

[0048] C. Supercritical fluid dynamic extraction: depressurize to 20MPa, cool to 60-70°C, and extract dynamically for 2-5 hours;

[0049] D. Separation: Put the product obtained in step C in a separation ke...

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

A supercritical fluid extraction process for extracting salidroside is disclosed. Fresh rhodiola crenulata is adopted which is high in water content and can be easily extracted in a fluid containing toluene and oxyfluoride. On the one hand, the rhodiola crenulata is firstly fumigated with formaldehyde to increase the humidity of rhodiola crenulata powder, and on the other hand, an entrainer is added to increase component selectivity and solubility of a supercritical fluid, thus greatly increasing the extraction efficiency. Through supercritical fluid static extraction and supercritical fluid dynamic extraction, the salidroside is extracted furthest and the yield of the salidroside is more than 2.3%.

Description

technical field [0001] The invention belongs to the field of traditional Chinese medicine extraction, and in particular relates to a supercritical fluid extraction process for extracting salidroside. Background technique [0002] Rhodiola daflora is the tuber of Rhodiola grandiflora, a plant of the Crassulaceae family, mainly produced in Tibet, northwestern Yunnan, and western Sichuan. Born in hillside grasslands, bushes, and rock crevices at an altitude of 2800-5600 meters. The functions and indications of Rhodiola daflora include: improving sleep, promoting blood circulation, anti-brain hypoxia, anti-fatigue, promoting blood circulation and stopping bleeding, clearing lung and relieving cough, reducing stasis and swelling, antipyretic and antipyretic, nourishing vitality, etc. Rhodiola daflora oral liquid is made by extracting the active ingredients of Rhodiola rosea, which is convenient to carry and take, and has high bioavailability. The main active ingredient of Rhodi...

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): C07H15/18C07H1/06
CPCC07H1/06C07H15/18Y02P20/54
Inventor 黄宛雨桑晓东梁小龙
Owner 西藏自治区生产力促进中心
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