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Linseed oil supercritical fluid extraction technology

A linseed oil, supercritical technology, applied in the direction of oil/fat production, fat production, etc., to achieve the effect of good safety, elimination of biological factors of deterioration, and high quality of oil products

Inactive Publication Date: 2015-11-11
查光圣
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] will destroy nutrients and have low nutritional value
[0005]The current cold pressing process more or less uses chemical additives in the production process, so that the final product

Method used

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Examples

Experimental program
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Embodiment Construction

[0017] A kind of linseed oil production process:

[0018] A. Air-dry the linseed kernels, and control the moisture content to 4%;

[0019] B. Put the sun-dried linseed kernels into a freezer at -25°C for 6 hours, then place them in a vacuum environment at -10°C for 7 hours, and finally place them in a vacuum environment at 45°C for 3 hours;

[0020] C, pulverize the linseed kernel obtained after the treatment of B, and sieve with a 20 mesh sieve;

[0021] D. CO 2 Supercritical extraction, fluid extraction pressure is 40MPa, extraction temperature is 40°C, CO 2 Fluid flow is

[0022] 1000L / h, the extraction time is 70 minutes, and the flaxseed oil is obtained;

[0023] E, ultrafiltration removes lipoxygenase, selects the ultrafiltration membrane of molecular weight cut-off 80-120kD, carries out ultrafiltration process to the linseed oil after filtering;

[0024] F. Ultraviolet irradiation, the filtered linseed oil flows through the irradiation device above which the ultrav...

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Abstract

The invention provides a linseed oil supercritical fluid extraction technology. Linseed oil is obtained through the CO2 supercritical fluid extraction step and the hyperfiltration step. In the production technology, especially in the refining process of linseed oil, no chemical reagent is added, a pure physical method is adopted for refining, and the obtained linseed oil reserves the specific flavonoid substances, linolenic acid, Vitamin E and other active materials of linseeds, and is free of residual solvent and pollution, good in safety and high in quality. Due to the fact that no chemical reagent is added in the extraction process and no chemical residual reagent exists, the linseed oil can serve as excellent high-end edible oil and cosmetic or a pharmacy additive. The linseed oil is heavy in fragrance and unique in flavor, can be widely applied to cooking various food and dishes and has high nutritive value and healthcare and maintaining effects, the high anti-oxidative active ingredients are ensured, and the linseed oil supercritical fluid extraction technology is especially suitable for being popularized in the technical field of small-batch special oil production.

Description

technical field [0001] The invention relates to a method for supercritical extraction of linseed oil, and belongs to the technical field: biology and new medical technology, modern agricultural technology, deep processing of agricultural products and modern storage and transportation: value-added processing of agricultural and forestry products and special resources. Background technique [0002] Flaxseed (Linumustitatissimum L), also known as flax, belongs to the family Linaceae and the genus Flax. It is one of the top ten oil crops in the world, mainly from Canada, Argentina, India, the United States, China and other countries. Flaxseed mainly contains functional ingredients such as fat, protein, and sugar. More importantly, flaxseed is rich in α-linolenic acid content of linseed oil. Flaxseed oil is currently the known plant with the highest n-3 fatty acid content. One of grease. Flaxseed oil is rich in a variety of unsaturated fatty acids, among which the content of...

Claims

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Application Information

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IPC IPC(8): C11B1/10C11B1/04
Inventor 不公告发明人
Owner 查光圣
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