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Supercritical Co2 extracting technique for oil of Nitraria seeds and application in lowering blood fat thereof

A supercritical, white thorn seed technology, applied in the production of fat/fat, fat production, metabolic diseases, etc., can solve the problems of unsaturated fatty acid oxidation, solvent residue, insufficient components, etc., and achieves a large amount of material input and low cost. , mild and simple process conditions

Inactive Publication Date: 2005-10-26
CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The common method of extracting seed oil in the prior art is the solvent method, which has disadvantages such as low efficiency, insufficient components, solvent residue, and some unsaturated fatty acids are oxidized

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1: Supercritical CO of Nitraria japonica seed oil 2 Extraction process: first dry the seeds of Nitraria japonica in the shade or in the sun to make the water content less than 10%, then pulverize (the particle size is 20-80 mesh), and then put them into a 20L-100L-scale one-extraction-two-separation circulation supercritical extraction device with CO 2 The extraction process parameters are extraction pressure 45MPa, extraction temperature 25°C, primary analysis pressure 120MPa, analysis temperature 65°C, secondary analysis pressure 15MPa, analysis temperature 50°C, CO 2 The flow rate is 250L / h, the extraction time is 1h, and the yield of Nitraria japonica seed oil is: .

Embodiment 2

[0050] Example 2: Supercritical CO of Nitraria japonica seed oil 2 Extraction process: first dry the seeds of Nitraria japonica in the shade or in the sun to make the water content less than 10%, then pulverize (the particle size is 20-80 mesh), and then put them into a 20L-100L-scale one-extraction-two-separation circulation supercritical extraction device with CO 2 The extraction process parameters are extraction pressure 15MPa, extraction temperature 50°C, primary analysis pressure 6MPa, analysis temperature 55°C, secondary analysis pressure 5MPa, analysis temperature 50°C, CO 2 The flow rate is 45L / h, and the extraction time is 8h.

Embodiment 3

[0051] Example 3: Supercritical CO of Nitraria japonica seed oil 2 Extraction process: first dry the seeds of Nitraria japonica in the shade or in the sun to make the water content less than 10%, then pulverize (the particle size is 20-80 mesh), and then put them into a 20L-100L-scale one-extraction-two-separation circulation supercritical extraction device with CO 2 The extraction process parameters are extraction pressure 30MPa, extraction temperature 30°C, primary analysis pressure 50MPa, analysis temperature 40°C, secondary analysis pressure 10MPa, analysis temperature 40°C, CO 2 The flow rate is 100L / h, and the extraction time is 6h.

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Abstract

The present invention relates to a supercritical CO2 extruction technique of nitraria sibiria seed oil. Said invention is characterized by that after the dried nitraria sibiria seed is pulverized, the pulverized dried nitraria sibiria seed can be placed in the supercritical extraction equipment, and extracted, its extraction pressure is 15-45 MPa, extraction temperature is 25-50 deg.C, CO2 flow rate is 45-250 L / h and extraction time is 1-8 hr. Said invention also provides the application of said nitraria sibiria seed oil in the preparation of medicine, for example capsule preparation with the function of reducing blood fat.

Description

technical field [0001] The invention relates to a method for extracting Nitraria japonica seed oil, in particular to a method using supercritical CO 2 A process for extracting Nitraria seeds; the present invention also relates to the application of Nitraria seed oil in medicine and the preparation process of Nitraria seed oil soft capsules. Background technique [0002] In the Qaidam Basin, about 500,000 to 600,000 mu of natural Nitraria forests with good development conditions are concentrated, with an annual output of 50,000 to 100,000 tons of Nitraria fresh fruit. In the mature fruit, Nitraria seeds account for 30% to 35% of the total fruit mass. When Nitraria fruit is used to develop products, a large number of Nitraria seeds are produced, and the resources are very large. The oil content of Nitraria seeds is 11%-13%, of which the unsaturated fatty acid content is very high, accounting for about 95% of the whole oil, and the linoleic acid is as high as 65%-70%, which is...

Claims

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Application Information

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IPC IPC(8): C11B1/10
Inventor 索有瑞李玉林王洪伦
Owner CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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