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Method for demulsification for extracting wheatgerm oil by using aqueous enzymatic method

A technology of wheat germ oil and wheat germ, which is applied in the direction of fat oil/fat production, fat production, etc., to achieve good quality results

Inactive Publication Date: 2013-05-22
INST OF AGRO FOOD SCI & TECH SHANDONG ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the emulsified oil contains non-oil components such as water and protein, the quality of the germ oil is affected, resulting in the germ oil contained in it being unusable and reducing the extraction rate of wheat germ oil

Method used

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  • Method for demulsification for extracting wheatgerm oil by using aqueous enzymatic method

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Experimental program
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Effect test

Embodiment 1

[0041] The method for demulsification in extracting wheat germ oil by aqueous enzymatic method comprises the following steps:

[0042] Raw material pretreatment: take the raw material wheat germ, dry it at 105°C for 15 minutes, and cool it to room temperature for later use;

[0043] Superfine pulverization: Superfine pulverization of the dried and cooled wheat germ to 800 meshes;

[0044] Compound enzymatic hydrolysis and oil extraction: Take the crushed raw material wheat germ, add water at a ratio of 1:6 between material and water, and then add a compound enzyme of cellulase and protease for enzymolysis. The protease is acid protease, cellulose The weight ratio of enzyme to acid protease is 1:5, and the amount of compound enzyme accounts for 2.27% of the weight of wheat germ; the enzymolysis conditions are: pH5, enzymolysis temperature 50°C, enzymolysis time 6h;

[0045] Centrifugal separation: After enzymatic hydrolysis, centrifuge at a speed of 4000-4500r / min for 15-20min...

Embodiment 2

[0057] The method for demulsification in extracting wheat germ oil by aqueous enzymatic method comprises the following steps:

[0058] Raw material pretreatment: take the raw material wheat germ, dry it at 100-105°C for 15-20min, and cool it to room temperature for later use;

[0059] Superfine pulverization: superfine pulverization of dried and cooled wheat germ to 800-1000 mesh;

[0060] Compound enzymatic hydrolysis and oil extraction: take the crushed raw material wheat germ, add water at a ratio of 1:6 between material and water, and then add a compound enzyme of cellulase and protease for enzymolysis. The protease is papain, cellulose The weight ratio of enzyme to papain is 1:5, and the amount of compound enzyme accounts for 2.27% of the weight of wheat germ; the enzymolysis conditions are: pH6, enzymolysis temperature 60°C, enzymolysis time 5h;

[0061] Centrifugal separation: After enzymatic hydrolysis, centrifuge at a speed of 4000-4500r / min for 15-20min: after centr...

Embodiment 3

[0069] The method for demulsification in extracting wheat germ oil by aqueous enzymatic method comprises the following steps:

[0070] Raw material pretreatment: take the raw material wheat germ, dry it at 100-105°C for 15-20min, and cool it to room temperature for later use;

[0071] Superfine pulverization: superfine pulverization of dried and cooled wheat germ to 800-1000 mesh;

[0072] Compound enzymatic hydrolysis and oil extraction: Take the crushed raw material wheat germ, add water according to the ratio of 1:6 between material and water, and then add a compound enzyme of cellulase and protease for enzymolysis. The protease is neutral protease, fiber The weight ratio of suzyme and neutral protease is 1:5, and the amount of compound enzyme accounts for 2.27% of the weight of wheat germ; the enzymolysis conditions are: pH7, enzymolysis temperature 55°C, enzymolysis time 6h;

[0073] Centrifugal separation: After enzymatic hydrolysis, centrifuge at a speed of 4000-4500r / ...

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Abstract

The invention belongs to the technical field of oil extraction, and in particular relates to a method for demulsification for extracting wheatgerm oil by using an aqueous enzymatic method. The method comprises the following steps of: pre-treating raw materials, superfine grinding, extracting the oil in a composite enzymatic hydrolysis mode, carrying out centrifugation, demulsifying, and carrying out secondary centrifugation so as to obtain the wheatgerm oil. By using the method to treat the wheatgerm, the obtained wheatgerm oil is good in quality, is light yellow and clear and transparent, and has the unique fragrance of the wheatgerm; the recycling rate can be 95-98%; and the hexadecanoic acid, the oleic acid, the linoleic acid and the linolenic acid in the wheatgerm oil are all high, and the unsaturated fattyacid content is as high as 82%.

Description

Technical field [0001] The present invention is the field of oil extraction technology, which involves a method of extracting milk in wheat germ oil in the water enzyme method. Background technique [0002] Wheat germ oil is rich in vitamin E, linoleic acid, linolenic acid, twenty -eight carbonol, and various physiological activity components, which has extremely high nutritional value.Due to the low oil content in the wheat germ, only 4-6 kg of germ oil can be used in 100 kilograms of wheat germ. It is difficult to extract it. There are few domestic manufacturers. At present, wheat germ oil consumption mainly depends on imports. The price is expensive.About US dollars.Wheat is the main food crop in my country. The annual output of wheat germ resources is 30-4 million tons. It has important practical significance to study wheat germ oil extraction process.The water enzyme method is to degrade the plant cell wall of the plant with enzymatic dismissal, so that the oil is released,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04C11B1/00
Inventor 杜方岭陶海腾刘丽娜徐同成王文亮刘振华邱斌刘玮马娇
Owner INST OF AGRO FOOD SCI & TECH SHANDONG ACAD OF AGRI SCI
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