Process of extracting phosphatidylcholine from soybean phosphatide

A technology of phosphatidylcholine and soybean lecithin, which is applied in the directions of edible phospholipid composition, food science, protein food ingredients, etc., can solve the problems of product yield and product purity being difficult to take into account at the same time, and achieves less solvent consumption and extraction process. simple effect

Inactive Publication Date: 2004-06-23
RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the product yield and product purity are difficult to be taken into account simultaneously in the existing phosphatidylcholi...

Method used

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  • Process of extracting phosphatidylcholine from soybean phosphatide
  • Process of extracting phosphatidylcholine from soybean phosphatide

Examples

Experimental program
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Effect test

Embodiment 1

[0017] The powdered soybean lecithin containing 23% phosphatidylcholine is formulated into a 10% concentration of phospholipid n-hexane solution as a raw material solution, and an extractant of acetonitrile:ethanol=1:3 (volume ratio) is prepared. Adopt extraction agent: feedstock liquid=1: 2 (volume ratio) feed ratio, at 30 ℃, under the condition of 60 minutes of extraction time of each stage, according to figure 1 The scheme shown performs a 3-stage counter-current extraction. The obtained product is detected by high-performance liquid chromatography, and the content of phosphatidylcholine is 84.2%, and the yield is 93%.

Embodiment 2

[0019] A 20% concentration of phospholipid petroleum ether solution was formulated with powdered soybean lecithin containing 23% phosphatidylcholine as a raw material solution, and an extractant of acetonitrile:methanol=1:6 (volume ratio) was prepared. Adopt extraction agent: feedstock liquid=1: 1 (volume ratio) feed ratio, at 40 ℃, under the condition of 30 minutes of extraction time of each stage, press figure 1 The scheme shown performs a 5-stage counter-current extraction. The obtained product is detected by high-performance liquid chromatography, and the content of phosphatidylcholine is 88.8%, and the yield is 95%.

Embodiment 3

[0021] Containing 23% phosphatidylcholine powdered soybean lecithin to prepare a 15% concentration of phospholipid heptane solution as a raw material solution, and prepare an extractant of acetonitrile:n-propanol=5:1 (volume ratio). Adopt extraction agent: feedstock liquid=4: 1 (volume ratio) feed ratio, at 25 ℃, under the condition of 80 minutes of extraction time of each stage, press figure 1 The scheme shown performs a 6-stage counter-current extraction. The obtained product is detected by high-performance liquid chromatography, and the content of phosphatidylcholine is 93.5%, and the yield is 85%.

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Abstract

The extraction process of phosphatidylcholine from soybean phosphatide includes multistage countercurrent extraction of soybean phosphatide with double-liquid phase mixed solvent comprising saturated alkane, acetonitrile and low carbon alcohol and the vacuum exsolution of ultimate extracted liquid to obtain the product with phosphatidylcholine content over 80 % in the yield over 80 %. The said technological process is simple, less investment in the apparatus, and suitable for continuous and automatic industrial production.

Description

Technical field [0001] The invention relates to a production method of phosphatidylcholine, in particular to a method for extracting phosphatidylcholine from soybean lecithin. Background technique [0002] Phosphatidylcholine is one of the most important components in phospholipids, mainly used in health food, medicine, cosmetics and other industries. At present, the methods for extracting phosphatidylcholine mainly include: column chromatography, salting-out method, supercritical fluid extraction method, acetylation method, membrane separation method, solvent extraction method, etc. Column chromatography can prepare high-purity phosphatidylcholine products, but it is difficult to scale up the process and the investment in equipment is large, so it is not suitable for large-scale industrial production. The salting-out method can also prepare high-purity phosphatidylcholine products, but the process is complicated, the operating conditions are harsh, and the inorganic salts ...

Claims

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Application Information

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IPC IPC(8): C07F9/10
Inventor 陈福明陈旭孙登文
Owner RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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