Egg yolk lecithin and preparation method thereof

A technology of egg yolk lecithin and egg yolk, which is applied in the field of medicine, can solve the problems of unsatisfactory purity of egg yolk lecithin, strict requirements for medical use, and high toxicity of methanol solvent, and achieves the advantages of easy industrialized large-scale production, high transfer rate, and low extraction cost Effect

Inactive Publication Date: 2020-07-10
南京康海磷脂生物技术有限公司 +1
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Problems solved by technology

Due to the complexity of the method, the methanol solvent used is very toxic, especially column chromatography is not conducive to large-scale industrial production
[0005] CN101057630A discloses a process for preparing egg yolk lecithin by using biological enzyme preparations, but this method cannot be industrialized yet; CN101029057A discloses a method for preparing egg yolk lecithin, which uses poultry eggs as raw materials, separates egg yolks and stirs them into Egg yolk liquid is extracted with edible alcohol, the extract is separated, the extract is concentrated and dehydrated to obtain the primary product of lecithin, and the primary product of lecithin is subjected to supercritical CO2 extraction to remove neutral fat to obtain neutral fat removal lecithin, but the purity of egg yolk lecithin obtained by this method still cannot meet the stringent requirements of medical use

Method used

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  • Egg yolk lecithin and preparation method thereof
  • Egg yolk lecithin and preparation method thereof
  • Egg yolk lecithin and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0017] The preparation of embodiment 1 egg yolk lecithin

[0018] 380Kg refined egg yolk (wet powder) was extracted five times:

[0019] Weigh 380 kg of refined egg yolk (wet powder) and add 950 L of absolute ethanol to homogenize for 30 minutes, centrifuge after homogenization, collect the extract, keep the filter cake and repeat the extraction four times, and combine the collected extract;

[0020] Add neutral alumina to the filtered extract in the ratio of refined egg yolk (wet powder): neutral alumina=1kg:0.5kg, centrifuge and collect the centrifugate after homogenizing for 50 minutes to obtain the adsorption solution;

[0021] Add activated carbon for injection to the absorption liquid according to the ratio of refined egg yolk (wet powder): active carbon for injection=1Kg:0.01Kg, homogenate and centrifuge for 50min to obtain decolorized liquid;

[0022] Inhale the decolorized solution into a concentrator for vacuum concentration to obtain a concentrated solution; filter...

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Abstract

The invention relates to the field of medicine, in particular to an egg yolk lecithin and a preparation method thereof. The egg yolk lecithin provided by the invention contain specific content of phosphatidylcholine and phosphatidyl ethanolamine, and can be used for preparing high-quality lipidosome; meanwhile, the preparation method of the egg yolk lecithin provided by the invention has the advantages of simple operation, low production energy consumption, low extraction cost, high transfer rate of effective components, safe production process, easy industrial large-scale production and the like.

Description

technical field [0001] The invention relates to the field of medicine, in particular to egg yolk lecithin and a preparation method thereof. Background technique [0002] Lecithin has a narrow sense and a broad sense. The lecithin in the narrow sense refers to phosphatidylcholine (PC); Phosphatidylcholine (PC), phosphatidylethanolamine (PE), phosphatidylinositol (PI), phosphatidic acid (PA) and other important substances with obvious physiological activities have been widely used in medicine, food, chemical industry, etc. field. Except for a small amount of artificial synthesis, the main source of lecithin is extracted from natural plant or animal egg powder, such as soybean lecithin extracted from soybean or egg yolk lecithin extracted from egg yolk. [0003] In the extraction process of egg yolk lecithin, there are mainly solvent extraction and supercritical CO 2 extraction method. [0004] CN1733777A discloses a preparation method of high-purity egg yolk lecithin, incl...

Claims

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Application Information

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IPC IPC(8): C07F9/10A61K47/24
CPCA61K47/24C07F9/103
Inventor 程光陈文忠乔广军卓亚红
Owner 南京康海磷脂生物技术有限公司
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