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CO2 supercritical extraction separation method for linseed oil

A technology of linseed oil and separation method, which is applied in the direction of fat oil/fat production, fat oil/fat refining, fat generation, etc., can solve the problems of uneven quality control of oil products, uneven quality of finished oil, uneven concentration control, etc., and achieve Guaranteed purity and oil quality, rigorous steps, and good oil quality

Pending Publication Date: 2020-04-17
甘肃金浩生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The oil content of flaxseed is relatively high, usually about 35%, and flaxseed contains a lot of unsaturated fatty acids, flaxseed gum, flax lignans and other nutrients, which have great effects on the prevention and treatment of cardiovascular diseases and lowering blood cholesterol. It has great effect and is a very excellent food resource, so the linseed oil prepared from linseed is also very popular among people; when the existing linseed oil is extracted from oil, there are two problems: ① extraction kettle CO in 2 Uneven concentration control leads to uneven oil quality control during extraction and low oil yield; ②The separation process after extraction is mostly one-stage separation, resulting in uneven quality of finished oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A linseed oil CO Supercritical extraction and separation method, characterized in that it comprises:

[0023] (1) selection; rough selection of linseed, sieve it to remove impurities, then wash with water, dry at normal temperature for subsequent use;

[0024] (2) pulverizing; the dried linseed obtained in the step (1) is put into a pulverizer for pulverization, and the obtained linseed is 30 orders;

[0025] (3) CO2 supercritical extraction;

[0026] ①: Pre-feed CO2 into the extraction kettle to wash the kettle, then put the linseed in step (2) into the extraction kettle for extraction, the extraction pressure is 43MPa; the extraction temperature is 40°C; the extraction time is 80min; Linseed oil slurry;

[0027] ②: Separation of the obtained linseed oil slurry: the separation method is two-stage separation, the pressure of the first-stage separation kettle is 9.3MPa, the pressure of the second-stage separation kettle is 7.5MPa, the temperature of the first-stage sep...

Embodiment 2

[0035] A linseed oil CO Supercritical extraction and separation method, characterized in that it comprises:

[0036] (1) selection; rough selection of linseed, sieve it to remove impurities, then wash with water, dry at normal temperature for subsequent use;

[0037] (2) pulverizing; the dried linseed obtained in the step (1) is put into a pulverizer to be pulverized to obtain a 40-order linseed;

[0038] (3) CO2 supercritical extraction;

[0039] ①: Put CO2 into the extraction kettle in advance to wash the kettle, then put the linseed in step (2) into the extraction kettle for extraction, the extraction pressure is 35MPa; the extraction temperature is 45°C; the extraction time is 70min; Linseed oil slurry;

[0040] ②: Separation of the obtained linseed oil slurry: the separation method is two-stage separation, the pressure of the first-stage separation kettle is 9MPa, the pressure of the second-stage separation kettle is 7.1MPa, the temperature of the first-stage separation...

Embodiment 3

[0048] A linseed oil CO Supercritical extraction and separation method, characterized in that it comprises:

[0049] (1) selection; rough selection of linseed, sieve it to remove impurities, then wash with water, dry at normal temperature for subsequent use;

[0050] (2) pulverizing; the dried linseed obtained in step (1) is put into a pulverizer for pulverization, and the obtained linseed is 50 meshes;

[0051] (3) CO2 supercritical extraction;

[0052] ①: Pre-feed CO2 into the extraction kettle to wash the kettle, then put the linseed in step (2) into the extraction kettle for extraction, the extraction pressure is 25MPa; the extraction temperature is 40°C; the extraction time is 60min; Linseed oil slurry;

[0053] ②: Separation of the obtained linseed oil slurry: the separation method is two-stage separation, the pressure of the first-stage separation kettle is 8.9MPa, the pressure of the second-stage separation kettle is 6.7MPa, the temperature of the first-stage separat...

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Abstract

The invention relates to the field of edible oil processing, in particular to a CO2 supercritical extraction separation method of linseed oil. The CO2 supercritical extraction separation method of linseed oil comprises the following steps: (1) sorting: roughly selecting flaxseeds, sieving the flaxseeds to remove impurities, washing the flaxseeds with water, and drying the flaxseeds at normal temperature for later use; (2) crushing: crushing the dried flaxseeds obtained in the step (1) in a crusher to obtain flaxseeds with the mesh number of 30-50; (3) carrying out CO2 supercritical extraction:1), introducing CO2 into an extraction kettle in advance to wash the kettle, and then putting the flaxseeds in the step (2) into the extraction kettle to extract; 2), separating an obtained linseed oil slurry; (4) collecting a finished product: collecting separated substances in the first-stage separation kettle and the second-stage separation kettle; (5) standing and canning: taking middle-upperlayer oil from the linseed oil obtained in the step (4), and canning.

Description

technical field [0001] The invention relates to the field of edible oil processing, specifically a linseed oil CO 2 Supercritical extraction separation method. Background technique [0002] The oil content of flaxseed is relatively high, usually about 35%, and flaxseed contains a lot of unsaturated fatty acids, flaxseed gum, flax lignans and other nutrients, which have great effects on the prevention and treatment of cardiovascular diseases and lowering blood cholesterol. It has great effect and is a very excellent food resource, so the linseed oil prepared from linseed is also very popular among people; when the existing linseed oil is extracted from oil, there are two problems: ① extraction kettle CO in 2 Uneven concentration control leads to uneven oil quality control during extraction and low oil yield; ②The separation process after extraction is mostly one-stage separation, resulting in uneven quality of finished oil. Contents of the invention [0003] (1) Technica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04C11B1/10C11B3/00
CPCC11B1/04C11B1/104C11B3/001
Inventor 付占忠
Owner 甘肃金浩生物科技有限公司
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