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Process for preparing coix seed oil

A technology of Coix seed oil and Coix seed, applied in the field of extracting Coix seed oil, can solve problems such as low yield of Coix seed oil, achieve the effects of no pollution solvent residue, avoid cost burden, and increase specific surface area

Inactive Publication Date: 2007-09-19
福建拓天生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a method for extracting coix seed oil with supercritical carbon dioxide, which overcomes the defect of low yield of coix seed oil in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1, a preparation method of coix seed oil, take 2 kg of coix seed, dry it, and coarsely pulverize it, then use the ultrafine pulverizer to perform ultrafine powder treatment, sieve with a 300--700 mesh sieve, and continue to ultrafinely pulverize the particles Until all can be sieved, wet with 3 kg of water, dry until no water drips out, and carry out supercritical carbon dioxide extraction treatment: the extraction kettle is at 25-45°C, the pressure is 35-40MPa, and the carbon dioxide flow rate is 50-100kg / h. kg; the temperature of the separation column is 25-45°C, the pressure is 5-6MPa; the temperature of the desorption kettle is 25-45°C, the pressure is 2-6Mpa, the extraction time is 2-5 hours, and 0.207 kg of coix seed oil is obtained, and the extraction yield is 10.35% .

Embodiment 2

[0017] Example 2, take 5 kg of coix seed and dry it for coarse crushing, then use the ultrafine pulverizer for ultrafine powder treatment, sieve with a 500--600 mesh sieve, continue to ultrafinely pulverize the particles until they can be completely sieved, and use 1 kg Water is wetted, dried until no water drips out, and then supercritical carbon dioxide extraction is carried out: the extraction kettle is 30-40°C, the pressure is 35-40MPa, the flow rate of carbon dioxide is 50-100kg / h.kg; the temperature of the separation column is 30-40 ℃, pressure 5-6MPa; analytical kettle temperature 25-45℃, pressure 2-6Mpa, extraction time 3-4 hours, 0.523 kg of coix seed oil was obtained, and the extraction yield was 10.46%. The extracted coix seed oil was subjected to GC -MC analysis, wherein palmitic acid 18.7%, linoleic acid 30.5%, oleic acid 44.8%, stearic acid 2.7%.

Embodiment 3

[0018] Example 3, take 10 kg of coix seed and dry it and coarsely pulverize it, then use an ultrafine pulverizer to perform ultrafine powder treatment, sieve it with a 600-700 mesh sieve, remove particulate matter, use 1 kg of water to wet it, and dry it to If there is no water dripping out, perform supercritical carbon dioxide extraction treatment: extraction kettle 30-40°C, pressure 35-40MPa, carbon dioxide flow rate 50-100kg / h.kg; separation column temperature 30-40°C, pressure 5-6

[0019] MPa; the temperature of the analytical kettle is 25-45°C, the pressure is 3-5Mpa, the extraction time is 2-4 hours, and 1.021 kg of coix seed oil is obtained, and the extraction yield is 10.21%.

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Abstract

The invention relates to a preparation method of coix seed oil. The characteristics are as follows, 1 ultrafine grinding: the dry coix seeds being coarsely cracked and then attrited until the grain size of micropowder is 1-5micron; 2 wetting and puffing: adding 0.1-1.5 times amount of water to the micropowder, and after wetting and puffing for 12-36 hours, slightly dried; 3 supercritical extraction of carbon dioxide: the temperature of extraction kettle being 25-45 degree, at the pressure of 35-40MPa, the flow rate of carbon dioxide being 50-100kg / h.kg; the temperature of separation column being 25-45 degree, at the pressure of 5-6MPa; the temperature of separator being 25-45 degree, at the pressure of 2-6MPa, the extration time being 2-5 hours. The said preparation method has features comprising high yield rate, low cost, no pollution, no organic solvent residue and so on, without any entrainers in addition, convenient for industrialized extraction of coix seed oil.

Description

technical field [0001] The invention relates to a method for extracting active ingredients from plant seeds, in particular to a method for extracting coix seed oil from micron coix seed powder. Background technique [0002] Coix seed is the seed kernel of the Gramineae plant Coix. It is flat in nature, sweet and light in taste, and returns to the spleen, lung and kidney meridians. It has the functions of invigorating the spleen and nourishing the lungs, clearing heat and promoting dampness, and is mainly used for diarrhea, arthralgia due to dampness, spasm of tendons, edema, beriberi, lung abscess, intestinal abscess, stranguria, leucorrhea embolism. Coix seed has an anti-tumor effect, and can prevent the growth and damage of cancer cells. The main component of its effect is currently relatively consistent understanding is the effective component of unsaturated fatty acids in coix seed oil. [0003] The traditional method of extracting coix seed oil is an organic solvent ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/8994A61P35/00C11B1/10A61K131/00
Inventor 肖志勇
Owner 福建拓天生物科技有限公司
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