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Method for assisting in subcritical extraction of soybean oil by using ultrasonic waves

A technology of soybean oil and ultrasound, which is applied in the direction of oil/fat production and fat generation, and can solve the problems of low extraction efficiency, environmental pollution, and cumbersome process

Inactive Publication Date: 2013-02-06
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing oil extraction technology has problems such as cumbersome process, long extraction time, low extraction efficiency, and pollution to the environment.

Method used

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  • Method for assisting in subcritical extraction of soybean oil by using ultrasonic waves
  • Method for assisting in subcritical extraction of soybean oil by using ultrasonic waves
  • Method for assisting in subcritical extraction of soybean oil by using ultrasonic waves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: Optimal parameter screening test for ultrasonic treatment of soybean flour solution

[0024] 1 Materials and methods

[0025] 1.1 Materials and reagents

[0026] soybeans Kennong 42 cultivated by Heilongjiang Academy of Agricultural Sciences has a protein content of 41.6%, an oil content of 21.3%, a moisture content of 10.6%, and an ash content of 4.3%. Alcalase alkaline endoprotease novo (1.2 x 10 5 U / mL)

[0027] 1.2 Main instruments and equipment

[0028] pHS-25 acidity meter Shanghai Weiye Instrument Factory electronic analytical balance Merlot-Toledo Instruments (Shanghai) Co., Ltd. centrifuge Beijing Medical Centrifuge Factory Precision electric mixer Ronghua Instrument Manufacturing Co., Ltd., Jintan City, Jiangsu Province Electric constant temperature water bath Yuyao Dongfang Electrical Instrument Factory Digester Shanghai Fiber Inspection Instrument Co., Ltd. Planetary ball...

Embodiment 2

[0060] Example 2: Optimal parameter screening test for subcritical water extraction of soybean oil

[0061] 1 Materials and methods

[0062] 1.1 Materials and reagents

[0063] soybeans Kennong 42 cultivated by Heilongjiang Academy of Agricultural Sciences has a protein content of 41.6%, an oil content of 21.3%, a moisture content of 10.6%, and an ash content of 4.3%. Alcalase alkaline endoprotease novo (1.2 x 10 5 U / mL)

[0064] 1.2 Main instruments and equipment

[0065] pHS-25 acidity meter Shanghai Weiye Instrument Factory electronic analytical balance Merlot-Toledo Instruments (Shanghai) Co., Ltd. centrifuge Beijing Medical Centrifuge Factory Precision electric mixer Ronghua Instrument Manufacturing Co., Ltd., Jintan City, Jiangsu Province Electric constant temperature water bath Yuyao Dongfang Electrical Instrument Factory Digester Shanghai Fiber Inspection Instrument Co., Ltd. Planetary ball mi...

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Abstract

The invention relates to a method for assisting in subcritical extraction of soybean oil by using ultrasonic waves, belonging to a plant oil extraction technology. The method comprises the following steps of: (1) peeling and crushing soybeans, mixing with water to obtain a mixed solution, performing ultrasonic treatment on the mixed solution, and performing centrifugal separation after ultrasonic treatment to obtain a water phase and precipitates; and (2) drying and crushing the precipitates obtained in the step (1), putting into a subcritical extraction kettle, performing subcritical fluid extraction to obtain extraction liquid, taking water as an extraction solvent, performing extraction, then filtering the extraction liquid to obtain filtrate, performing centrifugation and filtration on the filtrate, and then performing reduction vaporization to remove ethanol so as to obtain the soybean oil. The method has the advantages of relatively low equipment requirements, simple process, short extraction time, low energy consumption, low production cost, greenness and environmental friendliness, and is favorable for realizing industrial production; and furthermore, the obtained soybean oil has no residual solvent, the extraction rate is high, and the quality is good.

Description

technical field [0001] The invention belongs to vegetable oil extraction technology, and mainly relates to a method for ultrasonically assisted subcritical extraction of soybean oil. Background technique [0002] Subcritical water (Sub-critical water, SCW) is also called high-temperature water, super-heated water, high-pressure hot water or hot liquid water. At high temperatures, the water remains in a liquid state. The physical and chemical properties of subcritical water are quite different from those of water at normal temperature and pressure. As the temperature increases, the polarity, surface tension and viscosity of water decrease sharply. The dissolving power will be greatly increased, and its properties are closer to organic solvents, which indicates that subcritical water has certain dissolving power for neutral polar and non-polar compounds. Therefore, by adjusting the temperature and pressure of the subcritical water and changing the polarity of the water in a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/10C11B1/04
Inventor 江连洲吴瑕王梅刘琪王心刚韩宗元曹亮王中江王胜男
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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