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Method for extracting peony seed oil

A technology of peony seed oil and extraction method, which is applied in the direction of edible oil/fat, fat oil/fat production, fat production, etc., can solve the problems of easy damage to active ingredients, low extraction rate, high cost, etc., and achieve short extraction cycle and solvent consumption small, good quality effect

Inactive Publication Date: 2018-05-22
GUIZHOU AEROSPACE WUJIANG MACHINERY & ELECTRICITYEQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the pressing method and organic solvent extraction method are mostly used to prepare peony seed oil, but these methods not only have low extraction rate, high cost and pollution, but also easily damage the active ingredients.

Method used

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  • Method for extracting peony seed oil

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Experimental program
Comparison scheme
Effect test

Embodiment 2

[0016] The implementation method is as follows: put the screened peony seeds into an oven, dry them at a temperature of 60°C to a water content of 10%, put the dried peony seeds into a pulverizer and grind them into 60-mesh powder; weigh 1000.0 g into the material barrel of the extraction kettle, inject carbon dioxide gas into the extraction kettle, and keep the temperature and pressure of the carbon dioxide gas in the extraction kettle in contact with the natural raw materials in its supercritical state; the extraction temperature is 50°C, and the pressure is 25MPa; the carbon dioxide gas passes through The flow rate of the extraction kettle is 400kg / h, and the extraction time is 2h, so that the peony seed oil component in the peony seed powder is fully dissolved in the supercritical fluid, and the fluid containing the peony seed oil is collected from the outlet of the separation kettle. Obtained 219.5g of discharged material, and the extraction rate was 21.95%.

Embodiment 3

[0018] The implementation method is as follows: put the screened peony seeds into an oven, dry them to a water content of 10% at a temperature of 60° C., put the dried peony seeds into a pulverizer and grind them into 40-mesh powder; weigh 1000.0 meters of peony seed powder g into the material barrel of the extraction kettle, inject carbon dioxide gas into the extraction kettle, and keep the temperature and pressure of the carbon dioxide gas in the extraction kettle in contact with the natural raw materials in its supercritical state; the extraction temperature is 40°C, and the pressure is 28MPa; the carbon dioxide gas passes through The flow rate of the extraction kettle is 300kg / h, and the extraction time is 1.5h, so that the peony seed oil component in the peony seed powder is fully dissolved in the supercritical fluid, and the fluid containing the peony seed oil is collected from the outlet of the separation kettle. Obtained 160.5g of discharged material, and the extraction...

Embodiment 4

[0020] The implementation method is as follows: put the screened peony seeds into an oven, dry them to a water content of 15% at a temperature of 50°C, put the dried peony seeds into a pulverizer and grind them into 60-mesh powder; weigh 900.0 g into the material bucket of the extraction kettle, inject carbon dioxide gas into the extraction kettle, and keep the temperature and pressure of the carbon dioxide gas in the extraction kettle in contact with the natural raw materials in its supercritical state; the extraction temperature is 50°C, and the pressure is 30MPa; the carbon dioxide gas passes through The flow rate of the extraction kettle is 400kg / h, and the extraction time is 3h, so that the peony seed oil component in the peony seed powder is fully dissolved in the supercritical fluid, and the fluid containing ginger oil is collected from the outlet of the separation kettle. 126.0 g of discharged material was obtained, and the extraction rate was 14.0%.

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Abstract

The invention discloses a method for extracting peony seed oil. According to the method, peony seed oil is extracted from peony seeds by using a supercritical carbon dioxide fluid. Before extraction,peony seeds are selected, dried and crushed, the extraction temperature is 40-50 DEG C, the pressure is 25-30MPa, the flow of a carbon dioxide gas flowing through an extraction kettle is 200-400kg / hour, and the extraction time is 1.5-3 hours. As the carbon dioxide fluid at a supercritical state is adopted as an extraction solvent, the solvent is circulated in a same system, a small amount of the solvent is consumed, and the price of the solvent is low, the extraction cost is low. The carbon dioxide fluid is a green pollution-free solvent, the extracted peony seed oil has the characteristics ofbeing good in quality, high in purity, good in color, free of odor, free of solvent residue, free of environment pollution, and the like, and in addition is short in extraction cycle. The method is simple in process and low in energy consumption.

Description

technical field [0001] The invention belongs to the technical field of natural product extraction, and in particular relates to a supercritical extraction method of peony seeds. Background technique [0002] Peony seed oil is the most suitable oil for human nutrition among the oils found so far. It is rich in polyunsaturated fatty acids, and many indicators are higher than other oils. It is not easy to oxidize and deposit on the human blood vessel wall, coronary artery, etc. parts. It is these components that make it an ideal edible oil because of its important role in medicine and nutrition. The unsaturated fatty acid content of peony seed oil is more than 90%, and the content of polyunsaturated fatty acid-linolenic acid (belonging to w-3 series) is more than 40%, which is 140 times that of olive oil. At present, peony seed oil is mostly prepared by pressing method and organic solvent extraction method, but these methods not only have low extraction rate, high cost and po...

Claims

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Application Information

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IPC IPC(8): C11B1/10C11B1/04A23D9/02
CPCA23D9/02C11B1/04C11B1/104
Inventor 滕春娟潘江波
Owner GUIZHOU AEROSPACE WUJIANG MACHINERY & ELECTRICITYEQUIP