Production method of cold pressed linseed oil free from cyanide

A technology of linseed oil and its production method, which is applied in the directions of fat oil/fat production, fat generation, fat oil/fat refining, etc., can solve the problems such as the reduction of the health care function of linseed oil, the difficulty in realizing industrialized production, and the hidden dangers of edible safety, etc., and achieve It is convenient for large-scale industrial production, has good nutritional and health effects, and has low cost effects

Inactive Publication Date: 2018-09-04
广州利众生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Advantages of extrusion method: small nutrient loss, short action time; Disadvantages: special equipment is required, the process is difficult to control, and it is easy to cause waste of oil
Advantages: high efficiency, but difficult to achieve industrial production
The advantages of solvent detoxification method: significantly reduce the cyanogenic glycosides in flaxseed, and the cost of detoxification is low, the process is relatively simple, the disadvantage is: the risk of residual solvents
[0005] The Chinese patent application with the application number 201510996494.8 reports a production technology of cyanide-free and bitter-free cold-pressed linseed oil. The method is heated by four-stage microwave equipment to remove cyanide in linseed. The efficiency of poisoning is high, but it is difficult to realize industrial production
Chinese patent application CN 107557144 A discloses a low-temperature cold-pressing process of linseed oil, which does not include the detoxification step of cyanogenic glycosides of linseed, which has hidden dangers in food safety
Chinese patent application CN 107586601 A reports a hot-pressing production method of linseed oil. In the hot-pressing method, the seeds of oil crops are roasted and then squeezed out. The smell is particularly fragrant, the color is darker, and the yield is higher, but the nutritional content is seriously damaged. The health function of linseed oil is greatly reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for producing cyanide-free cold-pressed linseed oil, comprising the steps of:

[0029] 1) Pre-treatment of linseed: wash the linseed, dry in an oven at 65°C to remove water, pulverize, pass through a 60-mesh sieve to obtain linseed powder;

[0030] 2) Decyanation treatment of linseed powder: 25g of linseed powder, 0.64g of cellulase, 0.64g of xylanase, 8.0g of sterilized water, MgCl 2 50mg and MnCl 2 Put 50mg into a jar, mix well, adjust pH to 6.0, enzymatic detoxification temperature is 45°C, enzymatic detoxification time is 48h; after detoxification, it is measured that the degradation rate of cyanogenic glucoside reaches 96.01%, and the residual amount of cyanide reaches 0.077 mg·g -1 ;

[0031] 3) cold pressing method: adopt hydraulic cold pressing machine, set pressure 25Mpa, decyanation linseed powder water content is 5% (mass percentage composition), particle diameter is 2.7mm, carries out normal temperature pressing to obtain linseed crude oil; Th...

Embodiment 2

[0041] A method for producing cyanide-free cold-pressed linseed oil, comprising the steps of:

[0042] 1) Pretreatment of linseed: wash the linseed, dry in an oven at 70°C to remove water, pulverize, pass through a 70-mesh sieve to obtain linseed powder;

[0043] 2) Decyanation treatment of flaxseed powder: 25g of flaxseed powder, 0.65g of cellulase, 0.65g of xylanase, 9g of sterilized water, MgCl 2 50mg and MnCl 2 Put 50mg into a jar, mix well, adjust pH to 6.5, enzymatic detoxification temperature is 50°C, enzymatic detoxification time is 48h; after detoxification, it is measured that the degradation rate of cyanogenic glucoside reaches 95.23%, and the residual amount of cyanide reaches 0.068 mg·g -1 ;

[0044] 3) cold pressing method: adopt hydraulic cold pressing machine, set pressure 30Mpa, decyanation linseed powder water content is 7% (mass percentage content), particle diameter is 3mm, carries out normal temperature pressing to obtain linseed crude oil; The obtai...

Embodiment 3

[0052] A method for producing cyanide-free cold-pressed linseed oil, comprising the steps of:

[0053] 1) Pre-treatment of linseed: wash the linseed, dry in an oven at 60°C to remove water, pulverize, and pass through a 50-mesh sieve to obtain linseed powder;

[0054] 2) Decyanation treatment of linseed powder: 25g of linseed powder, 0.55g of cellulase, 0.55g of xylanase, 7g of sterilized water, MgCl 2 50mg and MnCl 2 Put 50mg into a jar, mix well, adjust pH to 5.5, enzymatic detoxification temperature 40°C, enzymatic detoxification time 48h; after detoxification, the degradation rate of cyanogenic glucoside reached 95.81%, and the residual amount of cyanide reached 0.070 mg·g -1 ;

[0055] 3) cold pressing method: adopt hydraulic cold pressing machine, set pressure 20Mpa, decyanation linseed powder water content is 4% (mass percentage composition), particle diameter is 2.5mm, carries out normal temperature pressing to obtain linseed crude oil; The linseed crude oil obta...

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Abstract

The invention belongs to the technical field of food processing and particularly relates to a production method of cold pressed linseed oil free from cyanide. The production method comprises the following steps of: 1) linseed pretreatment, 2) linseed meal decyanation treatment, 3) preparation of the linseed oil by a cold pressing method, 4) cold separation for degumming, 5) adsorption refining, and 6) bitterness removal operation. According to the method, cyanide is removed from linseeds; the generation of a bitter substance in the linseed oil is inhibited; the linseed oil free from cyanide and bitterness is obtained, and is safe to eat, good in taste and good in nutrition and health care effect; at the same time, the method is simple in preparation technology, mild, green and safe in reaction condition and low in energy consumption and contamination and facilitates large-scale industrial production; and the oil is high in quality.

Description

technical field [0001] The invention belongs to the technical field of food processing, and in particular relates to a method for producing cold-pressed linseed oil without cyanide. Background technique [0002] Linseed oil (linseed oil or linseed oil) is a dry oil obtained from linseed. It is yellow and transparent and has a pleasant aroma of linseed oil. The oil content in linseed is about 35%-45%, which contains a large amount of linolenic acid, which can be converted into unsaturated fatty acids such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in the animal body. It has extremely high nutritional value and a variety of physiological functions, and has the effects of lowering blood fat, lowering blood pressure, preventing and treating cardiovascular and cerebrovascular diseases, preventing diabetes and rheumatism, and anti-tumor, so it has gradually attracted people's attention. [0003] Cold-pressed linseed oil refers to the oil-pressing method in whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04C11B1/02C11B1/06C11B3/00C11B3/10
CPCC11B1/025C11B1/04C11B1/06C11B3/00C11B3/001C11B3/10
Inventor 汪芳张震梁珊邓凤桂葛佳佳
Owner 广州利众生物科技有限公司
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