Preparation method of linseed oil

A technology of linseed oil and linseed, applied in the direction of fatty acid preparation/refining, fatty acid production, etc., can solve problems such as complex process, failure to synthesize, quality change, etc., and achieve the effect of simplifying the extraction process and optimizing extraction parameters

Active Publication Date: 2013-11-06
安徽亿源生物工程有限公司
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AI Technical Summary

Problems solved by technology

However, it cannot be synthesized in the human body and must be ingested from the outside
[0003] The existing technology of extracting linseed oil generally adopts the traditional pressing method, or saponification and purification after pressing, the process is relatively complicated, and the quality will change when pressing

Method used

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Embodiment Construction

[0016] A preparation method of linseed oil, comprising the following steps:

[0017] (1) Take 10 kg of linseed or perilla, crush it through a 40-mesh sieve, add 80 kg of 1mol / L NaoH ethanol solution, heat it in microwave at 50°C for 30 minutes, until the solution is clear and transparent, and make the corresponding oil ester Saponification;

[0018] (2) Freeze precipitation to precipitate solid soap, add water to dissolve the soap, then adjust its pH value to 2-3 with 10% hydrochloric acid, and transfer it to a separatory funnel;

[0019] (3) Extract with petroleum ether, let stand to separate layers, separate and wash the upper organic phase with water until neutral, filter through a filter equipped with anhydrous sodium sulfate, evaporate the filtrate under reduced pressure at 45-50°C, and recover petroleum ether. Get mixed fatty acids;

[0020] (4) Separation of urea inclusion method is based on the weight ratio of mixed fatty acids: urea: ethanol or methanol = 1:3:9, mea...

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Abstract

The invention discloses a preparation method of linseed oil, and the method comprises the following steps of: smashing linseeds or perillaseeds, adding a 0.8-1.5mol / L NaOH ethanol solution, and extracting for 20-40 minutes at the temperature of 45-50 DEG C under the microwave heating condition until the solution is clear and transparent, so that corresponding oil is saponified, wherein the weight ratio of the linseeds or perillasseds to the NaOH ethanol solution is 1:(6-12). Compared with the prior art, the preparation method of linseed oil disclosed by the invention has the advantages that the NaOH ethanol solution is directly extracted, the extraction process is simplified, effective components in the linseeds are maintained, and extraction parameters are optimized; and the yield of the linseed oil reaches up to 21% and is increased by about 40% compared with the traditional squeezing, cold pressing extraction technique.

Description

technical field [0001] The invention belongs to a food processing technology, in particular to a preparation method of linseed oil. Background technique [0002] Flaxseed is rich in linseed oil, of which the oil content in linseed is as high as 30%-35%, and α-linolenic acid accounts for 45-60% of its oil content; the fruit of perilla contains 45.3% fatty oil, which contains Linoleic acid is 42.6%, α-linolenic acid is 22.4%. These oils mostly exist in the form of esters. The linseed oil is a kind of oil with special functions, which is related to human survival, reproduction, growth and development, disease prevention and anti-aging. Very close essential nutrients. In the human body, it participates in the synthesis and metabolism of phospholipids through the liver, and converts them into DHA and EPA, which are essential life active factors for the body. Flaxseed oil has strong effects of increasing intelligence, protecting eyesight, lowering blood lipids, cholesterol, dela...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11C1/02C11C1/08
Inventor 李恒勇
Owner 安徽亿源生物工程有限公司
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