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Extraction method of peony seed oil

An extraction method and technology of peony seed oil, applied in the direction of oil/fat production, fat production, etc., can solve the problems of high labor intensity, mixing of toxic substances, and low oil yield in the pressing method, so as to improve the oil yield and promote the release. , the effect of mild process conditions

Inactive Publication Date: 2017-01-04
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The extraction of peony seed oil in the prior art is mostly methods such as pressing, solvent extraction and supercritical carbon dioxide extraction. The pressing method is labor-intensive and the oil yield is low; solvent extraction is likely to cause toxic substances to be mixed into the peony seed oil; The supercritical carbon dioxide extraction method has a high oil extraction rate, but its equipment is expensive, which limits its large-scale application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Put 20g of fried peony seed powder into a beaker, add 110ml of distilled water, 0.1mol / L anhydrous sodium carbonate, 0.2mol / L sodium chloride, stir evenly with a glass rod and put it in a water bath at 100°C to kill the enzyme 5min, cooled to room temperature to form a salt solution of peony seed powder. Adjust the pH of the salt solution of peony seed powder to 9.5 with 20% hydrochloric acid, add 0.06g556U / g of alkaline protease, stir evenly with a glass rod, and stir in a water bath magnetic stirrer with a temperature set at 55°C for 3.5 h, the stirring speed is 20. The beaker after enzymolysis and stirring was inactivated in a water bath at 100°C for 5 minutes, the beaker was taken out and cooled to room temperature, centrifuged at 4000r / min for 30 minutes, and then the clear oil was absorbed, and the oil yield was 22.17%.

[0021] Take peony seed clear oil 10g and put it in a beaker, add 5% activated carbon of clear oil quality, centrifuge at a speed of 8000rmp for...

Embodiment 2

[0023] Put 20g of fried peony seed powder into a beaker, add 110ml of distilled water, 0.15mol / L anhydrous sodium carbonate, 0.5mol / L sodium chloride, stir well with a glass rod and put it in a water bath at 100°C to kill the enzyme 5min, cooled to room temperature to form a salt solution of peony seed powder. Adjust the pH of the salt solution of peony seed powder to 9.5 with 20% hydrochloric acid, add 0.06g556U / g of alkaline protease, stir evenly with a glass rod, and stir in a water bath magnetic stirrer with a temperature set at 55°C for 3.5 h, the stirring speed is 20. The beaker after enzymolysis and stirring was inactivated in a 100°C water bath for 5 minutes, the beaker was taken out and cooled to room temperature, centrifuged at 4000r / min for 30 minutes, and then the clear oil was absorbed, and the oil yield was 23.55%.

[0024] Take peony seed clear oil 10g and put it in a beaker, add 5% activated carbon of clear oil quality to the peony seed oil, centrifuge at a sp...

Embodiment 3

[0026] Put 20g of fried peony seed powder into a beaker, add 110ml of distilled water, 0.2mol / L anhydrous sodium carbonate, 0.4mol / L sodium chloride, stir well with a glass rod and put it in a water bath at 100°C to kill the enzyme 5min, cooled to room temperature to form a salt solution of peony seed powder. Adjust the pH of the salt solution of peony seed powder to 9.5 with 20% hydrochloric acid, add 0.06g556U / g of alkaline protease, stir evenly with a glass rod, and stir in a water bath magnetic stirrer with a temperature set at 55°C for 3.5 h, the stirring speed is 20. The beaker after enzymolysis and stirring was inactivated in a water bath at 100°C for 5 minutes, the beaker was taken out and cooled to room temperature, centrifuged at 4000r / min for 30 minutes, and then the clear oil was absorbed, and the oil yield was 21.23%.

[0027] In this embodiment, in order to further improve the quality of the oil, a simple water washing process can be carried out. Take 10g of pe...

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Abstract

The invention discloses an extraction method of peony seed oil. Stir-fried peony seed powder is added to a salt solution of anhydrous sodium carbonate and sodium chloride, the mixture is slightly alkaline through pH adjustment after even mixing, alkaline protease is added for an enzymatic reaction, and upper-layer clear oil is obtained after centrifugation of an enzymatic hydrolysate. Sodium carbonate and sodium chloride are added to a water-enzyme reaction system of the alkaline protease, the salt effect produced under the combined action of the sodium carbonate and sodium chloride effectively inhibits formation of an emulsion layer, release of more oil is promoted, the oil yield of peony seed oil is increased, the stability of the oil quality is improved, the oil yield is 23% or above, refinement is realized during extraction, the acid value conforms to the national standard of edible vegetable oil quality, and the method is high in practicability.

Description

technical field [0001] The invention relates to the technical field of oil purification, in particular to a method for extracting peony seed oil. Background technique [0002] The nutritional value of peony seeds is very high, its oil content is about 29-34%, protein content is about 18-22%, and the total unsaturated fatty acid content of peony seed oil reaches more than 90%, mainly linolenic acid and linoleic acid , are essential fatty acids in the human body, and have a variety of active functions in the body. [0003] The extraction of peony seed oil in the prior art is mostly methods such as pressing, solvent extraction and supercritical carbon dioxide extraction. The pressing method is labor-intensive and the oil yield is low; solvent extraction is likely to cause toxic substances to be mixed into the peony seed oil; The supercritical carbon dioxide extraction method has a high oil extraction rate, but its equipment is expensive, which limits its large-scale applicatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/00C11B1/04
CPCC11B1/00C11B1/04
Inventor 王晓琴何蓉黄伙水
Owner HUAQIAO UNIVERSITY
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