Production method of linseed oil as well as vacuum low-temperature pressing device of linseed oil

A technology of linseed oil and production method, which is applied in the directions of fat oil/fat production, press, and fat production, can solve the problems of reducing the nutrition and physiological activity of linseed oil, high maintenance cost of extraction technology and equipment, and destroying oil cells, etc. Achieve the effect of shortening the pressing process, high shelling efficiency, and reducing bitter substances

Active Publication Date: 2019-03-22
北京同仁堂安徽中药材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional hot pressing process not only destroys the oil plant cells, but also seriously destroys the active substances in linseed α-linolenic acid, vitamin E, sterols, carotenoids, etc., reducing the nutritional and physiological activities of linseed oil; solvent extraction The method causes the residue of organic solvent in linseed oil, which affects the quality of oil; supercritical CO 2 The maintenance cost of extraction technology equipment is high, and factory production is difficult

Method used

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  • Production method of linseed oil as well as vacuum low-temperature pressing device of linseed oil

Examples

Experimental program
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Effect test

Embodiment 3

[0058] Screening Example 3: The processing parameters of the treatment process of Preferred Screening Example 1 and Screening Example 2 are combined with linseed through high-voltage pulsed electric field and ultrasonic waves to prepare linseed oil:

[0059] Put 2.5kg of linseed into a high-voltage pulsed electric field for pretreatment. The pulsed electric field intensity is 26kV / cm, the pulse width is 20μs, the temperature is 38°C, and the treatment time is 4min to obtain matured linseed; then the matured linseed is Transport to the crusher for crushing to obtain coarse-grained linseeds with a particle size of 0.8-1mm; then transport the coarse-grained linseeds to an ultrasonic chamber for ultrasonic treatment, the ultrasonic frequency is 18kHz, the temperature is 33°C, and the processing time is 8 minutes to obtain the pressed raw material; then the pressed raw material was subjected to vacuum low-temperature pressing to extract oil, the vacuum degree was 0.06MPa, the temper...

preparation Embodiment 1

[0063] The production method of this preparation example linseed oil may further comprise the steps:

[0064] A. Hulling and kernel shell separation: Screen high-quality clean flaxseeds without damage, mildew, and dryness, put the high-quality flaxseeds into bags, put them into ultra-high pressure equipment, seal, pressurize to 358MPa, and hold the pressure for 4 minutes , carry out shelling, and then the linseed and flax husk mixture is separated by a high-speed rotating fan to obtain linseed and set aside;

[0065] B. High-voltage pulse electric field pretreatment: put 35kg of flaxseed into a high-voltage pulse electric field for pretreatment, the pulse electric field strength is 22kV / cm, the pulse width is 17μs, the temperature is 36°C, and the treatment time is 3min, and the mature flaxseed is obtained ;

[0066] C. Crushing: transport the matured linseed to a crusher for crushing to obtain coarse-grained linseed with a particle size of 0.8 to 1 mm;

[0067] D. Ultrasoni...

preparation Embodiment 2

[0075] The production method of this preparation example linseed oil may further comprise the steps:

[0076] A. Hulling and kernel shell separation: Screen high-quality clean flaxseeds without damage, mildew, and dryness, put high-quality flaxseeds into bags, put them into ultra-high pressure equipment, seal, pressurize to 482MPa, and hold the pressure for 5 minutes , carry out shelling, and then the linseed and flax husk mixture is separated by a high-speed rotating fan to obtain linseed and set aside;

[0077] B. High-voltage pulse electric field pretreatment: put 35kg of flaxseed into high-voltage pulse electric field for pretreatment, the pulse electric field strength is 25kV / cm, the pulse width is 18μs, the temperature is 37°C, and the processing time is 4min to obtain matured flaxseed ;

[0078] C. Crushing: transport the matured linseed to a crusher for crushing to obtain coarse-grained linseed with a particle size of 0.8 to 1 mm;

[0079] D. Ultrasonic reprocessing:...

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Abstract

The invention discloses a production method of linseed oil as well as a vacuum low-temperature pressing device of the linseed oil. The production method comprises the following steps: A, unshelling linseeds by ultrahigh-pressure equipment and performing separation by using a high-speed rotating fan; B, performing pretreatment curing on linseed kernels by a high-pressure electric field; C, puttingthe linseed kernels into a crushing machine and crushing to obtain coarse-grained linseed kernels; D, performing ultrasonic treatment on the coarse-grained linseed kernels by using an ultrasonic chamber to obtain to-be-pressed raw materials; E, performing vacuum low-temperature pressing on the to-be-pressed raw materials into oil to obtain refined clean linseed oil; F, protecting and storing the linseed oil by using inert gas high-purity nitrogen. Through treatment by physical processes such as ultrahigh-pressure technology unshelling, high-pressure pulse electric field pretreatment, crushing,ultrasonic retreatment and vacuum low-temperature pressing, the oil pressing time is shortened, the oil yield is increased, and the obtained linseed oil retains the specific active substances such aslinolenic acid and vitamin E of the linseeds, is free of pollution and has high safety and high oil product quality.

Description

technical field [0001] The invention relates to a production method of linseed oil and a vacuum low-temperature pressing device thereof, belonging to the technical field of edible oil processing. Background technique [0002] Flaxseed is one of the tenth largest oil crops in the world, ranking seventh in the world's total oil production. In my country, flax is mainly distributed in North China, Northwest China and other places, and is one of the five major oil crops in my country. [0003] Flaxseed is rich in linseed oil, with an oil content as high as 45-55%, and even flaxseed in Inner Mongolia, Gansu and other places has an oil content of more than 56%. The main components of linseed oil are unsaturated fatty acids - α-linolenic acid and Linoleic acid. Clinical studies have shown that α-linolenic acid has various important physiological functions and pharmacological activities such as regulating blood lipids, lowering cholesterol, anti-inflammation, anti-cancer, enhancin...

Claims

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Application Information

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IPC IPC(8): C11B1/04C11B1/06B30B9/16
CPCC11B1/04C11B1/06B30B9/16
Inventor 胡胜甜鲁大伟周恒吴计划王芬
Owner 北京同仁堂安徽中药材有限公司
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