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Microwave ultrasonic-assisted aqueous enzymatic method for extracting linseed oil

A linseed oil and ultrasonic technology, which is applied in the production of fat/fat and fat, can solve the problems of low oil yield, difficult emulsion breaking, and small scale of supercritical extraction method, and achieves high oil yield, High extraction efficiency, overcoming extraction solvent contamination and low efficiency

Active Publication Date: 2016-04-13
北京民幅农科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the physical pressing method has a low oil yield; the solvent extraction method, ultrasonic and microwave-assisted extraction methods have solvent pollution problems; , high production costs, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The method for extracting linseed oil by the microwave-ultrasonic assisted aqueous enzymatic method of the present embodiment comprises the following steps:

[0019] Step 1, sequentially screening, drying and pulverizing the linseed to obtain linseed powder with a particle size not greater than 0.6 mm;

[0020] Step 2, uniformly mixing cellulase and protease to obtain a compound enzyme; the mass percentage of protease in the compound enzyme is 35%;

[0021] Step 3. Adjust the pH value of the compound enzyme described in step 2 to 5.5 by adding edible vinegar dropwise, and then add deionized water, flaxseed powder and compound enzyme described in step 1 into a microwave-ultrasonic combined reaction kettle , under the condition that the temperature is 40°C, the microwave power is 500W, and the ultrasonic power is 1000W, the enzymolysis reaction is 90min to obtain the enzymolysis solution; The addition amount is 4% of the total mass of deionized water and linseed meal;

...

Embodiment 2

[0025] The method for extracting linseed oil by the microwave-ultrasonic assisted aqueous enzymatic method of the present embodiment comprises the following steps:

[0026] Step 1, sequentially screening, drying and pulverizing the linseed to obtain linseed powder with a particle size not greater than 0.6 mm;

[0027] Step 2, uniformly mixing hemicellulase and protease to obtain a compound enzyme; the mass percentage of protease in the compound enzyme is 20%;

[0028] Step 3. Adjust the pH value of the complex enzyme described in step 2 to 6 by adding edible vinegar dropwise, and then add deionized water, flaxseed powder and complex enzyme described in step 1 into the microwave-ultrasonic combined reaction kettle , under the condition that the temperature is 50°C, the microwave power is 500W, and the ultrasonic power is 1200W, the enzymolysis reaction is 90 minutes to obtain the enzymolysis solution; the amount of deionized water added is 6 times the mass of flaxseed powder, a...

Embodiment 3

[0032] The method for extracting linseed oil by the microwave-ultrasonic assisted aqueous enzymatic method of the present embodiment comprises the following steps:

[0033] Step 1, sequentially screening, drying and pulverizing the linseed to obtain linseed powder with a particle size not greater than 0.6 mm;

[0034] Step 2, uniformly mixing pectinase and protease to obtain a compound enzyme; the mass percentage of protease in the compound enzyme is 30%;

[0035] Step 3. Adjust the pH value of the complex enzyme described in step 2 to 6.5 by adding edible vinegar dropwise, and then add deionized water, flaxseed powder and complex enzyme described in step 1 into a microwave-ultrasonic combined reaction kettle , under the condition that the temperature is 40°C, the microwave power is 600W, and the ultrasonic power is 1200W, the enzymolysis reaction is 90 minutes to obtain the enzymolysis solution; the amount of deionized water added is 8 times the mass of flaxseed powder, and t...

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Abstract

The invention provides a microwave ultrasonic-assisted aqueous enzymatic method for extracting linseed oil. The method comprises the following steps: 1, screening linseed, and carrying out drying and pulverizing sequentially to obtain linseed powder; 2, uniformly mixing any one or more of cellulase, hemicellulase, pectolase and beta-glucanase with protease to obtain a complex enzyme; 3, adding deionized water, the linseed powder and the complex enzyme in a microwave ultrasonic wave combined type reaction kettle for enzymolysis to obtain an enzymatic hydrolysate; 4, performing solid-liquid separation to obtain the linseed oil. The method has the advantages of being high in oil content and extraction efficiency, so that a new effective way is provided for extraction of the linseed oil from the linseed.

Description

technical field [0001] The invention belongs to the technical field of vegetable oil extraction, and in particular relates to a method for extracting linseed oil by a microwave-ultrasonic assisted aqueous enzymatic method. Background technique [0002] Linseed oil, also known as linseed oil or flax oil, is mainly composed of linolenic acid, linoleic acid, oleic acid, stearic acid, palmitic acid and other fatty acids, of which the content of linolenic acid is as high as 55%, so linseed oil is the world's One of the vegetable oils with the highest linolenic acid content. The linolenic acid in linseed oil belongs to α-linolenic acid. α-linolenic acid is an essential fatty acid for the human body every day. It is a core substance of life and an important component of human brain cells and tissue cells. Humans cannot synthesize flax by themselves Acid must be obtained from food or nutritional supplements. At the same time, linseed oil has a strong effect of increasing intellige...

Claims

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Application Information

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IPC IPC(8): C11B1/00
CPCC11B1/00
Inventor 章结兵
Owner 北京民幅农科技有限公司
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