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Extraction method of wild rose under supercritical CO2 condition

A technology of rose extract and carbon dioxide, applied in solid solvent extraction, food science, fat production, etc., can solve the problems of adverse effects on human body, low removal rate of active ingredients, residual organic solvents such as benzene and aldehyde, and achieve no corrosion , high solubility and high extraction rate

Inactive Publication Date: 2004-12-29
孟中
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The extraction of active ingredients such as conventional rose essential oil or extract is obtained by pressing at room temperature or by extracting organic solvents such as alcohol, benzene, and aldehyde. The removal rate of active ingredients is low, and often contains organic solvents such as benzene and aldehyde Residues, adverse effects on the human body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Take 10kg of wild rose flowers and place them at -20°C for freeze-drying. After crushing and beating, put them into the extraction kettle, inject carbon dioxide at a flow rate of 40-80kg / hour, and extract for 3.5 hours at a temperature of 35°C and a pressure of 10-20Mpa. Send it to the separator for the first separation, collect the crude matter, and continue to enter the separation kettle for the second separation of the crude extract, with a pressure of 16Mpa and a temperature of 30-50°C, extract for 4 hours, and put the extract into a column separator ( 20,000 revolutions) separation, the supernatant obtained is wild rose water 60g, wild rose oil 3g, and the sediment is wild rose sauce 9.5kg.

Embodiment 2

[0011] Take 10kg of wild rose flowers and freeze-dry them at -10°C, pulverize them and put them into the extraction kettle, then inject carbon dioxide at a flow rate of 40-80kg / hour, extract for 5 hours at a temperature of 50°C and a pressure of 12Mpa, and then send them into The separator performs the first separation, collects the crude material, and the crude extract continues to enter the separation kettle for secondary separation, the pressure is 16Mpa, the temperature is 30°C, the extraction is 3.5 hours, and the extract is put into a column separator (rotation number 1~ 20,000 revolutions) separation, the supernatant is wild rose water 40g, wild rose oil 10g, and the sediment is wild rose sauce 9.5kg.

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PUM

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Abstract

The present invention is supercritical CO2 extraction process of obtaining wild rose extractive. The process includes freeze drying of wild rose at 0 deg.c to -30 deg.c, crushing and pulping, extracting in an extracting reactor with CO2 at flow rate of 40-80 kg / hr at 30-50 deg.c and 10-20 MPa for 3.5-5 hr, the first separation to collect coarse extractive, the second separation in a separating reactor, the second extracting at 30-50 deg.c and 10-16 MPa for 3.5-5 hr, and separation of the extractive in a column separator to obtain wild rose oil as the supernatant, wild rose water, and wild rose paste as the precipitate. CO2 as supercritical extractant has no toxicity, no side effect, no organic residue, no corrosion to extracting apparatus, great solubility and high extraction rate, and the present invention is suitable for industrial production.

Description

Technical field: [0001] The invention relates to a process for wild rose extracts, in particular discloses a method for extracting wild rose extracts with supercritical carbon dioxide, and belongs to the technical field of extraction methods for active parts of plants. Background technique: [0002] The extraction of active ingredients such as conventional rose essential oil or extract is obtained by pressing at room temperature or by extracting organic solvents such as alcohol, benzene, and aldehyde. The removal rate of active ingredients is low, and often contains organic solvents such as benzene and aldehyde Residues may have adverse effects on the human body. Invention content: [0003] The invention provides a method for extracting wild rose extract with supercritical carbon dioxide, which has the characteristics of high yield, no organic solvent residue and the like. [0004] The principle of supercritical carbon dioxide extraction and separation of wild rose extrac...

Claims

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Application Information

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IPC IPC(8): A23L2/02A23L21/12B01D11/02C11B9/00
Inventor 孟中
Owner 孟中
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