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Method for obtaining extractive by solvent extraction method under conditions of pressurization and ultrasonic irradiation

A technology of extraction and extraction method, applied in the field of extraction, can solve the problems of difficult control of product quality, long extraction time, large solvent consumption, etc., and achieve the effect of small impact, short extraction time and fast extraction rate

Inactive Publication Date: 2010-12-22
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) In terms of production technology, there are disadvantages such as large solvent consumption, long extraction time, high extraction temperature, long process route and low extraction rate.
[0004] (2) In terms of energy consumption, since a large amount of solvents are used for repeated extractions, a large amount of heat energy is consumed in the separation process
[0005] (3) In terms of product quality, due to the high extraction temperature and long extraction time, it is easy to cause the decomposition or denaturation of heat-sensitive active substances, and the product quality is difficult to control

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: extract inulin from Jerusalem artichoke

[0019] Take fresh Jerusalem artichoke, remove surface soil, sand or dead branches and leaves, cut into thin slices of 0.15cm thick, dry with hot air at 50°C for 4 hours, and then crush to obtain Jerusalem artichoke powder, then put 10kg of the raw material of Jerusalem artichoke powder into the extraction tank, add 150L Water, seal the extraction tank, pressurize the extraction tank to 1.1×10 5 Pa, turn on the ultrasonic irradiation device, the ultrasonic frequency is 16kHz, the ultrasonic power is 5000W, and the ultrasonic sound intensity is 10000W / cm 2 , extracted at an extraction temperature of 100° C. for 5 minutes to obtain extracted inulin, and the extraction rate of inulin was measured to be 97.8%.

[0020] Under the conditions of the same weight of raw materials, the same amount of water added, the same extraction temperature and extraction time, the extraction rate of inulin was measured to be 47.5% by us...

Embodiment example 2

[0021] Implementation Case 2: Extraction of Total Flavonoids from Pueraria Radix

[0022] Take fresh kudzu root, wash and remove surface soil and sand, cut into thin slices of 0.10cm thick, dry with hot air at 50°C for 6 hours, and then crush to get kudzu root powder, put 10kg of kudzu root powder raw material into the extraction tank, add 95% Ethanol 100L, seal the extraction tank, pressurize the extraction tank to 3.0×10 5 Pa, turn on the ultrasonic, the ultrasonic frequency is 50kHz, the ultrasonic power is 25W, and the ultrasonic sound intensity is 40W / cm 2 , extracted at an extraction temperature of 60° C. for 15 minutes to obtain the extracted total flavonoids, and the extraction rate of the total flavonoids in Pueraria root was measured to be 90.1%.

[0023] Under the conditions of the same weight of raw materials, the same 95% ethanol addition, the same extraction temperature and extraction time, using the traditional 95% ethanol extraction method without pressure and...

Embodiment example 3

[0024] Example 3: Extraction of oil from soybeans

[0025] Take fresh soybeans, remove the soil and sand on the surface, dry them with hot air at 40°C for 10 hours, and then crush them to obtain soybean powder. Put 10 kg of soybean powder raw materials into an extraction tank, add 80 L of No. 6 solvent oil, seal the extraction tank, and extract Tank pressurized to 1 x 10 6 Pa, turn on the ultrasonic, the ultrasonic frequency is 100kHz, the ultrasonic power is 1000W, and the ultrasonic sound intensity is 1000W / cm 2 , extracted at an extraction temperature of 30° C. for 5 minutes to obtain extracted oil, and the extraction rate of oil in soybean was measured to be 95.2%.

[0026] Under the conditions of the same weight of raw materials, the same amount of No. 6 solvent oil, the same extraction temperature and extraction time, the extraction rate of oil in soybeans was measured to be 69.3% by using the traditional No. 6 solvent extraction method without pressure and ultrasound. ...

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Abstract

The invention relates to a method for obtaining an extractive by a solvent extraction method under conditions of pressurization and ultrasonic irradiation. The method comprises the following steps: removing impurities from a substance to be extracted, drying, crushing, putting the crushed substance into an extraction tank, adding a solvent, sealing the extraction tank, and utilizing the pressure device of the extraction tank to carry out pressurization, wherein the pressurized pressure is controlled at 1.1*105-1*106 Pa; and then opening an ultrasonic irradiation device, and extracting for 5-300 min at the extract temperature of 20-100 DEG C to obtain the extractive, wherein the ultrasonic frequency is controlled at 16-500kHz, the ultrasonic power is controlled at 10-5000W, and the ultrasonic strength is controlled at 1-10000W / cm<2>. Since pressurization enables the process of producing cavitation bubble collapse by utilizing the solvent subject to ultrasonic irradiation to be faster and more severe, produces strong washout and crushing actions on the surface of the substance to be extracted and quickens inner and outer diffusion mass transfer in the extraction process, thus the invention has the advantages of fast extraction speed, short extraction time, high extraction yield and the like.

Description

technical field [0001] The invention belongs to the technical field of extraction, and in particular relates to a method for obtaining extract by solvent extraction under pressure and ultrasonic irradiation. Background technique [0002] Food, chemical, pharmaceutical, biological and other fields usually use traditional solvent extraction to extract extracts. Solvent extraction is a separation process in which substances present in a certain phase are leached and dissolved with a solvent, and transferred to the solvent phase. The solvent is usually water, or 1-99% ethanol aqueous solution, or 1-99% methanol aqueous solution, or 1-99% acetone aqueous solution, or No. 6 solvent naphtha, or ether, Or petroleum ether, or isopropanol, etc. The traditional solvent extraction method has the advantages of simple operation and cheap equipment, but there are mainly several problems: [0003] (1) In terms of production technology, there are disadvantages such as large solvent consum...

Claims

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Application Information

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IPC IPC(8): B01D11/02B01J19/10C08B37/00C07J17/00C07D407/04C07F9/10A61K36/488A61K125/00
Inventor 罗登林李爱江何佳李鑫玲张敏辛莉宗留香许威刘建学钟先锋徐宝成李佩艳
Owner HENAN UNIV OF SCI & TECH
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