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Europe plum oil and its preparation method

A technology of prunes oil and total fatty acids, which is applied in the fields of pharmaceutical formulations, edible oil/fat, fat oil/fat production, etc., can solve the problems of prunes prunes oil application limitations, destruction of active substances in oils, refining and complicated solvent recovery, etc., to achieve Clear blood vessel wall cholesterol, prevent arteriosclerosis, widely used effect

Inactive Publication Date: 2005-03-16
山西浩大开源科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The extraction rate of the pressing method is low, and the pressing temperature is high, which will destroy the active substances in the oil; the extraction rate of the organic solvent method is improved, but the oil obtained by this method contains a large amount of impurities such as pigments and amygdalin. It requires a complicated process; although amygdalin is an active ingredient of traditional Chinese medicine, amygdalin contained in oil will have a toxic effect on normal eaters
Recently, someone has obtained Prunus punctatus oil from Prunus punctifera seeds by means of a two-phase method (CN02146618.1). The solvent used is usually hexane or low-carbon alcohol, etc., and there are solvent residues in the product, which are harmful to the human body; in addition, due to the high extraction temperature and long extraction time used, the total amount of unsaturated fatty acids will be lost to a certain extent, and some pyrolysis products will be produced In fats and oils, the high-quality characteristics of Ou Li oil are not revealed
These inadequacies go out that the application of Oli oil in fields such as food, medicine, cosmetics and refined chemical industry has been restricted to a large extent.
[0006] At present, there is no report on the extraction of Plum seed oil by supercritical carbon dioxide extraction method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: Using mature Plum fruit as raw material, press to get the core, wash with water, and dry at 60°C to obtain Plum seeds; after being pulverized by a shearing mill, sieve to get 10-40 mesh Put 400g of raw material into the extraction kettle, enter from the top of the extractor, and feed CO2 out from the bottom. 2 , adjust the extraction pressure at 32MPa, temperature 55°C, carry out extraction for 3 hours, separation temperature 60°C, separation pressure 8MPa, isolate 81g of Plum oil, its appearance is clear and transparent.

[0022] According to the analysis by gas chromatography, in the fatty acid composition of Plum oil, 65.6wt% of oleic acid, 29.8wt% of linoleic acid, 3.5wt% of palmitic acid, 0.6wt% of palmitoleic acid and 0.5wt% of stearic acid, the degree of unsaturated fatty acid Up to 96.0wt%, acid value 0.5mgKOH / g oil, saponification value 174.9mgKOH / g oil, iodine value 101.9gI 2 / 100g oil, the peroxide value is 0.02%, the grease is pollution-free, and...

Embodiment 2

[0023] Example 2: Using mature Plum fruit as a raw material, press to extract the core, wash with water, and dry at 60°C to obtain Plum seeds; after crushing, 400g of 20-40 mesh raw material is taken by sieving and extracted. In the kettle, the method of entering from the bottom of the extractor and flowing out from the top is fed into CO 2 , adjusting the extraction pressure at 18MPa, temperature 35°C, extraction for 3 hours, separation temperature 70°C, separation pressure 7MPa, and 80g of Plum oil was separated, and its appearance was clear and transparent.

[0024] After analyzing the fatty acid composition, 61.50wt% of oleic acid, 34.80wt% of linoleic acid, 2.90wt% of palmitic acid, 0.74wt% of palmitoleic acid and 0.06wt% of stearic acid. The acid value is 0.4mgKOH / g oil, the peroxide value is 0.01%, and the total amount of unsaturated fatty acids is 97.04wt%.

Embodiment 3

[0025] Example 3: Using mature Plum fruit as a raw material, press to extract the core, wash with water, and dry at 60°C to obtain Plum seeds; after crushing and sieving, take 500g of 20-40 mesh raw materials and put them into an extraction kettle , enter from the bottom of the extractor, and the method of flowing out from the top is fed into CO 2 , adjusting the extraction pressure at 25MPa, temperature 40°C, extraction for 3 hours, separation temperature 30°C, separation pressure 5MPa, and 102g of Prunus oleifera oil was separated with a clear and transparent appearance. Analysis of fatty acid composition showed 65.50wt% oleic acid, 30.80wt% linoleic acid, 3.2wt% palmitic acid, 0.38wt% palmitoleic acid and 0.12wt% stearic acid. The total amount of unsaturated fatty acid composition is 96.68wt%.

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Abstract

Disclosed is a Semen Pruni Humilis oil with unsaturated fatty acid accounting to 95-97 wt% of the total fatty acid composition, the constituent of the saturated fatty acid being 3-5%, the acid value being 0.5-10.0 mgKOH / g, the saponification value being 160-210 mgKOH / g oil, the iodine number being 95-115gI2 / 100g oil. The preparation process comprises disintegrating the seeds to 10-40 meshes, using carbon-dioxide as abstraction medium for oil production under supercritical state. The invention realizes the isolation of solvent residual and bitter apricot kernel glycosides.

Description

technical field [0001] The invention belongs to a kind of prunus oil and its preparation method in the field of food and bioengineering, and particularly relates to a method of extracting highly unsaturated fatty acids with supercritical carbon dioxide, and prunus oil obtained by extracting prunus seeds and its preparation method . Background technique [0002] Ou Liren is the seed kernel of Ou Liren, also known as Yu Liren, and the oil content in Ou Liren is 45-55wt%. The total amount of unsaturated fatty acids in oils can account for more than 90wt% of the total fatty acid composition. Through the comparison of unsaturated fatty acids in several common vegetable oils in Table 1, it can be seen that the total amount of unsaturated fatty acids in Plum oil It is the highest and contains only a small amount of saturated fatty acids. [0003] name Composition of Unsaturated Fatty Acids Total (wt%) Oleic acid composition (wt%) Solvent E...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23D9/00C11B1/10
Inventor 杜俊民王秦俊侯相林杜俊杰
Owner 山西浩大开源科技有限公司
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