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Method for extracting okra seed oil

An okra seed extraction technology, applied in the direction of fat oil/fat production, fat production, etc., can solve the problems of high extraction cost, solvent residue, and peculiar smell, and achieve the effect of short extraction cycle, low solvent consumption, and good quality

Inactive Publication Date: 2015-04-08
GUIZHOU AEROSPACE WUJIANG MACHINERY & ELECTRICITYEQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing extraction methods need to consume a large amount of valuable organic solvents, high energy consumption, high extraction costs, and the extracted okra seed oil has solvent residues, peculiar smell, and low purity

Method used

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  • Method for extracting okra seed oil

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Experimental program
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Effect test

Embodiment 2

[0016] The implementation method is as follows: choose dry okra seeds with smooth surface as raw materials, put the okra seeds into an oven, and dry the okra seeds at a temperature of 55°C for 12 hours; put the pre-dried okra seeds into a grinder and grind them into 28 Purpose sunflower seed powder; then put the sunflower seed powder into an oven, and dry the sunflower seed powder at a temperature of 55°C for 12 hours; the sunflower seed powder after drying continues to be left in the drying furnace to cool naturally to normal temperature; Put 1.7kg of the final sunflower seed powder into the material bucket of the extraction kettle, inject carbon dioxide gas into the extraction kettle for extraction, the extraction temperature is 45°C, and the pressure is 30MPa; the flow rate of carbon dioxide gas through the extraction kettle is 220kg / h, and the extraction time is 1.5h, the okra seed oil component in the sunflower seed powder was dissolved in the supercritical fluid, and the ...

Embodiment 3

[0018] The implementation method is as follows: choose dry okra seeds with a smooth surface as raw materials, put the okra seeds into an oven, and dry the okra seeds for 12 hours at a temperature of 60°C; put the pre-dried okra seeds into a grinder and grind them into 22 Purpose sunflower powder; then put the sunflower powder into an oven, and dry the sunflower powder at 60°C for 12 hours; the dried sunflower powder continues to be left in the drying furnace to cool naturally to normal temperature; Put 1.7kg of the final sunflower seed powder into the material bucket of the extraction kettle, inject carbon dioxide gas into the extraction kettle for extraction, the extraction temperature is 50°C, and the pressure is 30MPa; the flow rate of carbon dioxide gas through the extraction kettle is 250kg / h, and the extraction time is 2h, the okra seed oil component in the sunflower seed powder is dissolved in the supercritical fluid, and the fluid containing the okra seed oil is collect...

Embodiment 4

[0020] The implementation method is as follows: choose dry, smooth surface okra seeds as raw materials, put the okra seeds into an oven, and dry the okra seeds at a temperature of 60°C for 12 hours; put the pre-dried okra seeds into a grinder and grind them into 20 Purpose sunflower powder; then put the sunflower powder into an oven, and dry the sunflower powder at 60°C for 12 hours; the dried sunflower powder continues to be left in the drying furnace to cool naturally to normal temperature; Put 3.3kg of the final sunflower seed powder into the material bucket of the extraction kettle, inject carbon dioxide gas into the extraction kettle for extraction, the extraction temperature is 50°C, and the pressure is 35MPa; the flow rate of carbon dioxide gas through the extraction kettle is 250kg / h, and the extraction time is 1.5h, the okra seed oil component in the sunflower seed powder was dissolved in the supercritical fluid, and the fluid containing the okra seed oil was collected...

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Abstract

The invention discloses a method for extracting okra seed oil which is extracted from okra seeds by adopting a supercritical carbon dioxide fluid. During extraction, cooled okra seed powder is put into a material barrel of an extraction kettle, a carbon dioxide gas is injected into the extraction kettle to keep temperature and pressure in the extraction kettle; and the carbon dioxide gas in a supercritical state is contacted with natural raw materials, so that the okra seed oil ingredient in the okra seed powder is dissolved in the supercritical fluid, and the fluid containing the okra seed oil is collected at the extraction outlet of the extraction kettle. According to the method, the carbon dioxide fluid under a supercritical state is used as an extracting solvent, can be recycled in the same system, and has small solvent consumption and low price, so that the extraction cost is low; and the extracting cycle is short, which is only 1-3 hours and is a quarter of an existing technical production cycle. The extracted okra seed oil has the characteristics of high quality, high purity, no foreign odor, no solvent residue, no environment pollution and the like. The method has simple process and low energy consumption.

Description

technical field [0001] The invention belongs to the technical field of substance extraction, and in particular relates to a method for extracting okra seed oil. Background technique [0002] Okra seed oil is extracted from okra seeds. It has high nutritional value, contains a variety of fatty acids, and has a strong and unique fragrance. It has attracted attention in the fields of medical treatment, food and agriculture. At present, the extraction of okra seed oil is mostly carried out by solvent extraction. The existing extraction method needs to consume a large amount of valuable organic solvents, which has high energy consumption and high extraction cost, and the extracted okra seed oil has solvent residues, peculiar smell and low purity. Contents of the invention [0003] The purpose of the present invention is to provide a method for extracting okra seed oil, improve extraction purity, reduce environmental pollution, and reduce extraction cost. [0004] Technical sc...

Claims

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Application Information

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IPC IPC(8): C11B1/10
CPCC11B1/104
Inventor 冉启军王洪川刘族艳
Owner GUIZHOU AEROSPACE WUJIANG MACHINERY & ELECTRICITYEQUIP
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