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Process for extracting alpinia oxyphylla volatile oil through biological enzyme-supercritical fluid method

A supercritical fluid method and bio-enzyme technology, which is applied in the direction of producing fat, essential oil/fragrance, etc., can solve the problems that have not been reported in public literature, and achieve the effects of shortening processing time, convenient operation, and improving production efficiency

Inactive Publication Date: 2014-10-01
NANJING ZELANG MEDICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Through literature search, do not see the public literature report identical with the present invention

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Take 1000g of the dry powder of Yizhi, spray the biological enzyme equivalent to 0.5% of the weight of Yizhi (cellulase: hemicellulase: amylase is 0.4:0.4:0.2), wrap it in a film, and accumulate it in a dark room at a temperature of 45°C. After 24 hours of fermentation, the fermented raw materials were dried and added to supercritical CO 2 In the extraction kettle of the fluid extraction instrument, set the extraction pressure to 20MPa, the temperature to 45°C, feed in 20L / h, and extract for 3h. That is the nootropic volatile oil, with a yield of 2.3%.

Embodiment 2

[0014] Take 1000g of the dry powder of Yizhi, spray it with biological enzymes equivalent to 0.8% of the weight of Yizhi (cellulase: hemicellulase: amylase is 0.4:0.3:0.3), wrap it in a film, and accumulate it in a dark room at a temperature of 50°C. Ferment for 18 hours, dry the fermented raw materials, add to supercritical CO 2 In the extraction kettle of the fluid extraction instrument, set the extraction pressure to 25MPa, the temperature to 40°C, feed 25L / h, and extract for 1.5h. The substance is nootropic volatile oil, and the yield is 2.6%.

Embodiment 3

[0016] Take 1000g of the dry powder of Yizhi, spray it with biological enzymes equivalent to 1% of the weight of Yizhi (cellulase: hemicellulase: amylase: 0.5:0.3:0.2), wrap it in a film, and accumulate it in a dark room at a temperature of 45°C. Ferment for 12 hours, dry the fermented raw materials, add to supercritical CO 2 In the extraction kettle of the fluid extraction instrument, set the extraction pressure to 30MPa, the temperature to 35°C, feed 30L / h, and extract for 2 hours. That is the nootropic volatile oil, the yield is 2.5%.

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Abstract

The invention relates to a process for extracting alpinia oxyphylla volatile oil through a biological enzyme-supercritical fluid method. The process comprises the following treatment steps: performing raw material compound enzyme fermentation, adding the fermented raw materials into an extraction kettle of a supercritical CO2 fluid extractor, setting the extraction pressure to be 20-30MPa and the temperature to be 30-45 DEG C, controlling introducing rate at 20-30L / h, and extracting for 1.5-3 hours, wherein the temperature of the separation kettle I is 20-30 DEG C, the pressure is 10-20MPa, the temperature of the separation kettle II is 10-20 DEG C, the pressure is 5-15MPa, and the separated substance is the alpinia oxyphylla volatile oil. The process is high in extraction speed, high in yield, convenient to operate, safe, reliable and pollution-free, the obtained product has high yield and purity, and the process is a high-efficiency energy-saving method for extracting and separating the alpinia oxyphylla volatile oil.

Description

technical field [0001] The invention relates to a method for extracting nootropic volatile oil, in particular to a process for extracting nootropic volatile oil with a biological enzyme-supercritical fluid method, and belongs to the technical field of natural plant extraction products. Background technique [0002] Yizhi, a plant belonging to the Zingiberaceae family, is exclusively produced in southern my country and is rich in resources. It is also known as Yizhiren and Yizhizi. It is one of the four major southern medicines in Hainan. Its main components are volatile oil, and the main components in the oil are eucalyptol, zingiberene, gingerol, etc. Nootropic volatile oil has very good central inhibitory and analgesic effects, and is a kind of medicinal oil worthy of development and utilization. [0003] Enzyme engineering technology uses enzyme liquid to decompose cellulose, hemicellulose and pectin that make up the cell wall and cytoplasm, making it loose, swell and col...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02
Inventor 刘东锋杨成东
Owner NANJING ZELANG MEDICAL TECH
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