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Demulsification method for extracting soybean oil by aqueous enzymatic method

A soybean oil and water enzymatic technology, which is applied in the production of oil/fat and fat production, can solve the problems of low demulsification rate and long demulsification time.

Active Publication Date: 2012-10-17
山东万得福生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, most foreign scholars use organic solvents to directly extract the oil in the emulsion in order to investigate the effect of releasing the oil from the oil plant cells after enzymatic hydrolysis, but no further research on the technical level has been reported, and, now Some demulsification technologies have problems such as long demulsification time and low demulsification rate

Method used

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  • Demulsification method for extracting soybean oil by aqueous enzymatic method
  • Demulsification method for extracting soybean oil by aqueous enzymatic method
  • Demulsification method for extracting soybean oil by aqueous enzymatic method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] Example Demulsification Process Optimal Parameter Screening Test

[0022] 1 Materials and methods

[0023] 1.1 Test raw materials

[0024] Soybean Kennong 42 cultivated by Heilongjiang Academy of Agricultural Sciences, the protein content is 41.6%, the oil content is 21.3%, the moisture content is 10.6%, and the ash content is 4.3%.

[0025] Alcalase alkaline endoprotease novo (1.2×10 5 U / mL)

[0026] 2.1.2 Test instruments and equipment

[0027] Instrument Manufacturer

[0028] CX-500 Ultrasonic Cleaner Beijing Second Medical Equipment Factory

[0029] Electronic Analytical Balance METTLER TOLEDO Instruments (Shanghai) Co., Ltd.

[0030] Hammer Mill China Tianjin Test Instrument Co., Ltd.

[0031] LDZ5-2 Desktop Low Speed ​​Centrifuge Shanghai Anting Scientific Instrument Factory

[0032] Electric constant temperature water bath Yuyao Dongfang Electrical Instrument Factory

[0033] TGL-16G High Speed ​​Desktop Centrifuge Shanghai Anting Scientific Instrument F...

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Abstract

The invention relates to a demulsification method for extracting soybean oil by an aqueous enzymatic method, belonging to a vegetable oil and fat extraction technology. The method comprises the following steps of: (1) pulverizing soybeans, extruding, puffing and pretreating to obtain a puffed material; mixing the puffed material with water to obtain a mixed solution; adding alkali protease to themixed solution for enzymolysis, and then centrifuging and separating to obtain free oil, an emulsion, hydrolysate and residues; (2) heating the emulsion obtained in the step (1), and adding phosphoric acid to the heated emulsion for conditioning; cooling the reaction system, and then adding a sodium hydroxide solution to carry out a flocculation reaction; and continuously heating the system afterthe reaction, and centrifuging and separating to obtain soybean oil. The method has the advantages of simple required process equipment, short demulsification time and high demulsification rate.

Description

technical field [0001] The invention belongs to the extraction and processing technology of vegetable oil, and mainly relates to a method for extracting soybean oil and demulsifying it by an aqueous enzymatic method. Background technique [0002] Demulsification is a very critical step in the extraction of soybean oil by aqueous enzymatic method. The more thorough the demulsification, the higher the recovery rate of oil. The quality of demulsification directly affects the economic value of the whole process. [0003] Demulsification methods are divided into chemical demulsification and physical demulsification. Adding a demulsifier is a chemical method. Centrifugation, changing the temperature, applying an electrostatic field, and using coalescents are physical methods. The original intention of exploring the aqueous enzymatic process is to avoid the use of organic solvents and toxic and harmful chemical reagents in the oil extraction process. For this reason, it is easy ...

Claims

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Application Information

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IPC IPC(8): C11B1/00C11B1/04
Inventor 江连洲李杨齐宝坤王梅刘琪
Owner 山东万得福生物科技有限公司
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