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Subcritical liquid extraction device and subcritical liquid extraction method of active ingredients of natural products

A subcritical fluid and active ingredient technology, applied in the direction of solid solvent extraction, etc., can solve the problems of being limited to a specific subcritical fluid, cumbersome loading and unloading of extraction kettles, and high working pressure of equipment, so as to reduce solvent loss and low operating costs , The effect of reducing the project cost

Inactive Publication Date: 2010-02-10
HENAN YALINJIE BIOLOGICAL TECH
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AI Technical Summary

Problems solved by technology

[0007] In order to overcome the low degree of automation of the existing subcritical fluid extraction device, the cumbersome loading and unloading of the extraction kettle, and the high working pressure of the equipment; at the same time, the subcritical fluid extraction method is limited to a specific subcritical fluid, and the extraction of medium polar and polar compounds Low efficiency and other defects, the present invention makes full use of the characteristics of subcritical fluids such as liquefied petroleum gas, high-purity isobutane, dimethyl ether and sulfur hexafluoride at the same temperature close to the subcritical pressure, and designs a set of simple structure, extraction It is a device that is easy to open, has a high degree of automation, and is also suitable for the above-mentioned various subcritical fluid extractions, and describes in detail the method of using this device to extract fat-soluble or medium-polar functional components of natural products

Method used

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  • Subcritical liquid extraction device and subcritical liquid extraction method of active ingredients of natural products

Examples

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Effect test

Embodiment 1

[0045] Example 1 Subcritical Liquefied Petroleum Gas Extraction of Natural Greenthorn Fruit Oil

[0046] Take 2.5kg of natural green sorrel fruit, the raw material contains 0.3% impurities after pretreatment, the thickness of the embryo sheet is 0.35mm, the water content is 8.5%, and the temperature is 45°C. Then subcritical liquefied petroleum gas was used as the lysozyme to extract the thorn fruit oil, the extraction temperature was 45°C, the extraction time was 45 minutes, and the extraction times were 5 times. The mixed oil is decompressed and gasified, and when it reaches 0Mpa (gauge pressure), it is vacuumed and precipitated. When the gauge pressure is -0.09MPa, it is kept at a temperature of 45°C for 30min. The wet material embryo is decompressed and gasified, and the lysozyme is recovered by compression. Determination results of the main quality indicators of the green thorn fruit oil: 0.85ppm residual solubility in the oil; 0.1% impurity; 2.0% oil content in the meal...

Embodiment 2

[0047] Example 2 Ultrasonic-assisted subcritical propane extraction of natural green thorn fruit oil

[0048] Take 2.5kg of natural green sorrel fruit, the raw material contains 0.3% impurities after pretreatment, the thickness of the embryo sheet is 0.35mm, the water content is 8.5%, and the temperature is 45°C. Then subcritical propane was used as the lysozyme, and the thorn fruit oil was extracted with ultrasonic assistance. The extraction temperature was 45°C, the extraction time was 30 minutes, the extraction times were 3 times, the ultrasonic power was 1500W, and the ultrasonic frequency was 20KHz. The mixed oil is decompressed and gasified, and when it reaches 0Mpa (gauge pressure), it is vacuumed and precipitated. When the gauge pressure is -0.09MPa, it is kept at a temperature of 45°C for 30min. The wet material embryo is decompressed and gasified, and the lysozyme is recovered by compression. Determination results of the main indicators of green thorn fruit oil: res...

Embodiment 3

[0049] Example 3 Subcritical propane and butane extraction of wheat germ oil

[0050] Take 2.5kg of wheat germ, after cleaning, microwave drying and other pretreatments, the impurity content is 0.15%, and the water content is 7.5%. Using subcritical propane and butane, the extraction is carried out according to the countercurrent three-immersion process. The first and second times are respectively extracted with the second and third times of mixed oil leached from the previous tank, and each time is soaked for 35 minutes. The mixed oil leached in the first pass is pumped into the evaporation tank, and the other two passes are pumped into the buffer tank. The leaching temperature is room temperature, the pressure is 0.4MPa, the ratio of material to solution is 1:2.5, and the ratio of propane to butane is 3:1. When the mixed oil evaporates, the temperature of the circulating hot water is controlled below 50°C, and when it reaches 0Mpa (gauge pressure), it is vacuumed and precip...

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Abstract

The invention provides a subcritical liquid extraction device and a subcritical liquid extraction method of active ingredients of natural products, relating to a device and a method for extracting active ingredients of natural products. The device comprises a control system part and a leaching system part, wherein the leaching system part comprises an extraction tank 1, an evaporating tank 2, a buffer tank 3, a condenser 4, a solvent tank 5, an ultrasound generating device 11, a vacuum pump 9, a fire arrester 10, a compressor 8, a hot water pump 7 and a hot water box 6; the control system partcomprises a leaching temperature controller, a leaching time controller, a leaching frequency controller, a material dissolving ratio controller, an exsolution temperature regulation controller, an exsolution pressure feedback controller, an electric appliance controller of the device and an excess-temperature excess-pressure leaking alarm. The method can select different subcritical extraction media according to different extraction products, combines a subcritical liquid extraction technology and an ultrasonic extraction technology to increase extraction rate and reduce extraction time andis a new high-efficiency low-consumption environment-friendly technology for extracting active ingredients of natural products.

Description

technical field [0001] The invention relates to a device and method for extracting functional components of natural products, in particular to a device and method for extracting fat-soluble functional components of natural products by using fluids such as subcritical lower alkanes, tetrafluoroethane or sulfur hexafluoride under the assistance of ultrasound . Background technique [0002] Our country has a vast territory, complex geographical environment and changeable climatic conditions have created the diversity of species in our country, especially the natural resources such as special oils, flavors and fragrances, pigments, etc. , onion, wolfberry seeds, seabuckthorn, red pepper, pepper, osmanthus, roses and riley flowers, etc. [0003] Due to their thermal sensitivity, the high value-added physiologically active substances in natural products not only have low yields but also destroy functional components by conventional heat reflux extraction methods and organic solve...

Claims

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Application Information

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IPC IPC(8): B01D11/02
Inventor 徐斌朱新亮董英冯娟蔡健荣姜松任晓锋
Owner HENAN YALINJIE BIOLOGICAL TECH
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