Preparation method of egg yolk oil

A technology of egg butter and egg yolk powder, which is applied in the direction of fat oil/fat production, fat generation, medical raw materials derived from birds, etc., can solve the problems of high cost and low yield, and achieve low cost, taking into account both cost and yield, The effect of low extraction pressure

Active Publication Date: 2015-11-04
CHENGDU TIANXIN PHARMA HEALTH CARE CO LTD
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Problems solved by technology

[0004] In the current extraction method, the higher the extraction pressure, the higher the extraction temperature, and the longer the extraction time, the higher the yield, but the higher the cost; and the lower the extraction pressure, the lower the extraction temperature, and the shorter the extraction time In some cases, although the cost is reduced, the yield is also reduced. For example, Liao Yuzhou, "Research on the Extraction of Egg Oil by Supercritical Carbon Dioxide", Chemical Engineering and Equipment, September 2008, egg oil was extracted under six different conditions, and the extraction The pressure is divided into 25Mpa, 30Mpa, 34Mpa, 34Mpa, 38Mpa and 45Mpa, the temperature is controlled at 35°C, 45°C, 43°C, 50°C, 55°C and 55°C, the extraction time is 3h, and the yield of egg oil is 29 %, 38%, 37%, 44%, 47% and 48%

Method used

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  • Preparation method of egg yolk oil

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Effect test

experiment example 1

[0023] Experimental example 1 The preparation method of egg oil

[0024] Pretreatment: After breaking the eggs, use an egg white separator to separate the egg yolks, ripen them at 100-105°C, grind them, continue drying at 70-80°C until the water content is ≤5%, grind them, and pass through a No. 1 sieve to obtain egg yolk powder.

[0025] Take egg yolk powder 1000g, measure its water content ≤ 5%, extract egg yolk by supercritical carbon dioxide extraction method, extraction temperature is 50 ℃, extraction pressure 35Mpa, CO 2 The flow rate is 50L / h, and the extraction time is 120min.

[0026] Repeat three times, collect egg oil and yield as following table:

[0027] Test No.

[0028] It can be seen that there is little difference in the yield of the method of the present invention, indicating that the method of the present invention is stable. In addition, the average yield of the method of the present invention is 42.65%.

experiment example 2

[0029] Experimental example 2 The preparation method of egg oil

[0030] Pretreatment: After breaking the eggs, use an egg white separator to separate the egg yolks, ripen them at 100-105°C, grind them, continue drying at 70-80°C until the water content is ≤5%, grind them, and pass through a No. 1 sieve to obtain egg yolk powder.

[0031] Take egg yolk powder 1000g, measure its water content ≤ 5%, extract egg yolk by supercritical carbon dioxide extraction method, extraction temperature is 50 ℃, extraction pressure 38Mpa, CO 2 The flow rate is 50L / h, and the extraction time is 105min.

[0032] A total of 355 g of egg oil was collected, and the yield of egg oil was 35.5%.

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Abstract

The invention provides a preparation method of egg yolk oil, and a supercritical carbon dioxide extraction method is adopted to prepare the egg yolk oil. The method comprises the steps that egg yolk powder is taken, and extraction is conducted for 105-120 min under the condition that the extraction pressure ranges from 35 MPa to 38 MPa, the CO2 flux is 50 L/h, and the extraction temperature is 50 DEG C. According to the the preparation method of the egg yolk oil, the egg yolk oil can be extracted effectively, the yield reaches up to 42.65%, the extraction pressure is small, the extraction temperature is low, the extraction time is short, the cost is low, the cost and the yield can be taken into account at the same time, and the industrial application prospect is good.

Description

technical field [0001] The invention relates to a method for preparing egg yolk. Background technique [0002] Egg oil, also known as egg yolk lipid, is the yolk extract obtained by separating and extracting fresh poultry eggs. It is rich in lecithin and unsaturated fatty acids. In addition, it also contains protein amino acids, minerals, vitamins and other nutrients. Widely used in clinical medicine, health food, cosmetics, medicine and chemical industries. [0003] The extraction methods of egg oil include high-temperature decoction, solvent extraction, supercritical CO 2 Extraction method, etc., supercritical CO2 extraction method can selectively extract egg yolk and can not contain phospholipids, the extraction conditions are mild, and the functional properties of lecithin and protein in egg yolk powder are well preserved. [0004] In the current extraction method, the higher the extraction pressure, the higher the extraction temperature, and the longer the extraction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/10A61K35/57A61P17/02
Inventor 张海苏柘僮张帅杰纪奇森
Owner CHENGDU TIANXIN PHARMA HEALTH CARE CO LTD
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