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Method for removing bitterness of linseed oil by enzymatic process

A linseed oil removal technology, applied in the direction of edible oil/fat, food science, application, etc., can solve the problems of lack of market competitiveness of products, high cost of bitterness removal, etc., and achieve easy promotion, low environmental requirements, and simple operation Effect

Active Publication Date: 2014-09-24
RES INST OF AGRO PROD PROCESSING SHANXI ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method for debittering linseed oil disclosed in the above two patents may be an effective method for debittering linseed oil. However, the disadvantage of this method is that the cost of debittering is relatively high, and the products debittered by this method lack market competitiveness.

Method used

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  • Method for removing bitterness of linseed oil by enzymatic process
  • Method for removing bitterness of linseed oil by enzymatic process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] First, take 1000ml of bitter linseed oil and heat it to 50°C; then take 1g of neutral protease with an enzyme activity of 200,000 u / g and dissolve it in 8ml of drinking water at 50°C, and adjust the pH value of the solution to 7; then prepare The neutral protease solution was added to 1000ml of hot oil while stirring, and the stirring was continued for 3 hours, then the oil was heated to 85°C to inactivate the enzyme for 30 minutes, the oil and water were separated by centrifugation, and finally the centrifuged oil was dehydrated to obtain Debittered flax oil. After accounting, the reagent cost for debittering treatment is 0.1 yuan / kg linseed oil.

Embodiment 2

[0023] Take 1000ml of freshly squeezed linseed oil and heat it to 55°C; then take 0.1g of neutral protease with an enzyme activity of 200,000 u / g and dissolve it in 2ml of drinking water at 55°C, and adjust the pH value of the solution to 7.2; Add the prepared neutral protease solution into 1000ml of hot oil while stirring, keep stirring for 4 hours, then raise the temperature of the oil to 80°C to inactivate the enzyme for 30 minutes, centrifuge the oil and water, and finally dehydrate the centrifuged oil, That is to get off the bitterness of linseed oil.

Embodiment 3

[0025] Take 1000ml of bitter linseed oil and heat it to 40°C; then take 2g of neutral protease with an enzyme activity of 200,000 u / g and dissolve it in 20ml of drinking water at 48°C, and adjust the pH value of the solution to 7.2; then prepare the Add the neutral protease solution into 1000ml hot oil while stirring, keep stirring for 2 hours, then raise the temperature of the oil to 82°C to inactivate the enzyme for 30 minutes, centrifuge the oil and water, and finally dehydrate the centrifuged oil to obtain dehydration Debitter flax oil.

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Abstract

The invention discloses a method for removing bitterness of linseed oil by an enzymatic process. The method comprises the following steps: dissolving neutral protease into water at 40-55 DEG C to obtain a solution, wherein the mass of the neutral protease accounts for 0.01%-0.2% of that of linseed oil and the mass of the water is 2-10 times of that of the neutral protease; adjusting the PH value of the solution to 7-7.2; slowly adding while stirring the solution into linseed oil at 40-55 DEG C; continuously stirring for 2-6 hours; increasing the temperature of oil to 80-85 DEG C and deactivating enzyme for 30 minutes; carrying out centrifugal separation; and dehydrating linseed oil. By virtue of the method, the bitterness of the linseed oil can be effectively removed, so that the linseed oil which is not bitter on mouthfeel or gestation is obtained and the flavor of the linseed oil is effectively improved. The method can be carried out under the condition of existing refining equipment, and since the temperature in treatment dose not exceed 85 DEG C, the nutrition of the linseed oil is prevented from being destroyed. As neither inflammable nor explosive component is adopted, the production safety is good, the operation is easy, the bitterness removing cost is low, and consequently the method is convenient to popularize.

Description

technical field [0001] The invention relates to the technical field of debittering linseed oil, in particular to a method for debittering linseed oil by an enzymatic method. Background technique [0002] Flaxseed is one of the characteristic oils with a large cultivation area in my country, and linseed oil contains about 50% α-linolenic acid. Scholars at home and abroad have found that α-linolenic acid has many physiological functions beneficial to human health: (1) lowering blood fat; (2) lowering blood pressure; (3) enhancing immunity; (4) preventing diabetes; (5) losing weight (6) prevent stroke and myocardial infarction; (7) remove harmful substances in the blood and prevent heart disease; (8) delay menopausal syndrome; (9) enhance attention and memory; (10) adjuvant treatment of rheumatoid Arthritis; (11) auxiliary treatment of skin ringworm and eczema; (12) prevention and treatment of constipation, diarrhea and gastrointestinal syndrome. Therefore, in recent years, l...

Claims

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Application Information

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IPC IPC(8): A23D9/04
Inventor 高忠东胡晓军刘超李群许光映
Owner RES INST OF AGRO PROD PROCESSING SHANXI ACADEMY OF AGRI SCI
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