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Method for extracting peony seed oil

A technology of peony seed oil and peony seeds, applied in edible oil/fat, food preparation, food science, etc., can solve the problems of low extraction efficiency, cumbersome steps, and few researches on the extraction of peony seed oil, and achieve simple extraction and separation methods , The effect of extracting complete

Inactive Publication Date: 2009-06-03
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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  • Claims
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AI Technical Summary

Problems solved by technology

At present, there are few reports on the research of peony seeds at home and abroad, and there are very few studies on the extraction of peony seed oil. The extraction efficiency of general extraction methods is not high, not suitable for large-scale production requirements, and the steps are cumbersome

Method used

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  • Method for extracting peony seed oil
  • Method for extracting peony seed oil
  • Method for extracting peony seed oil

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Embodiment 1

[0014] Embodiment 1, supercritical CO 2 Peony Seed Oil Extraction

[0015] The model of the supercritical extraction instrument used in the present invention is HA121-50-01, and its device diagram is as follows Figure 5 shown. The method for extracting peony seed oil provided by the invention specifically comprises the following steps:

[0016] 1) Dry the peony seeds in an oven at 60°C for 48 hours, put them into a grinder and grind them into powder, sieve peony seed powders with different particle sizes, and take 20-60 mesh particle sizes for later use.

[0017] 2) Weigh 200g of raw material, put it into the extraction kettle, turn on the cold cycle refrigeration, and open the air valve.

[0018] 3) Set the temperature of separation I and separation II in the extraction tank to 45°C, 40°C, and 35°C, respectively.

[0019] 4) When the refrigeration equipment stops working, turn on the high-pressure pump and open valves 1 and 3.

[0020] 5) When the pressure reaches 30MPa...

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Abstract

The invention discloses a method for extracting peony seed oil. In the method, peony seed powders are put in a supercritical CO2 extractor for supercritical extraction, and oil is collected to obtain the provided peony seed oil. In the method, the supercritical extraction temperature ranges from 30 to 50 DEG C, 45 DEG C is optimized, the pressure for supercritical extraction ranges from 20 to 35MPa, and 30MPa is optimized; time for supercritical extraction ranges from 0.5 to 2 hours, and 1 hour is optimized. The grain diameter of the peony seed powders ranges from 20 to 60 screen meshes. The provided supercritical CO2 extracting method for preparing peony seed oil needs no organic reagents, has simple and convenient extracting and separating method, the extraction yield can reach 27 percent, and obtained unsaturated fatty acid can reach 90 percent; and compared with the prior organic solvent extraction method, the contents of linolenic acid and linoleic acid in peony oil are increased to certain extent, and the extraction is completer.

Description

technical field [0001] The invention relates to a method for extracting peony seed oil, in particular to a method utilizing supercritical CO 2 The extraction method is the method of extracting peony seed oil. Background technique [0002] The linolenic acid rich in peony seed oil is n-3 series polyunsaturated fatty acid. Because this unsaturated fatty acid cannot be synthesized by itself in the body, it must be supplied by food, so it is called essential fatty acid. Linolenic acid is the parent of n-3 polyunsaturated fatty acids, which can be converted into EPA and DHA to play a role after ingestion. Accumulating evidence indicates that n-3 series polyunsaturated fatty acids play special roles in the structure and function of biological membranes. Animals deficient in essential fatty acids exhibit many symptoms, especially abnormalities in the central nervous system, retina, and platelets. At present, there are few reports on the research of peony seeds at home and abroad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23D9/02A23L1/28A23L1/29
Inventor 王昌涛董银卯何聪芬赵华刘永国张萍
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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