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Method for removing color and impurities from concentrated phospholipid

A technology for concentrating phospholipids and colors, which is applied in the fields of edible phospholipid composition, protein food ingredients, food science, etc., can solve the problems of complicated operation, large equipment investment, dark color of phospholipids, etc., and achieves the effect of safe operation and less equipment investment.

Inactive Publication Date: 2013-06-12
杨志华
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AI Technical Summary

Problems solved by technology

Concentrated phospholipid is a substance with high nutritional value, but because phospholipid is dark in color and contains a small amount of impurities such as silt and meal, it affects people's consumption of it.
[0003] In the prior art, the decolorization of concentrated phospholipids is decolorized by strong oxidants such as hydrogen peroxide, and the removal of impurities is by acetone extraction. The removal of impurities is not only cumbersome to operate and requires a lot of equipment investment, but also, because acetone is volatile, flammable and explosive, the original production process has great potential safety hazards

Method used

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Embodiment Construction

[0008] The present invention will be further described below in conjunction with specific embodiments.

[0009] The method for removing color and impurities of concentrated phospholipids according to the present invention: first put the concentrated phospholipids in a closed container, and then add a filter aid and a decolorizing agent to the container containing the concentrated phospholipids, the container is the concentrated phospholipid decolorization Pot; Under the temperature condition of 50℃-130℃, under the vacuum state of negative pressure 0.09MPa-0.05MPa, stir for 40 minutes; after the stirring is completed, use a filter to perform pressure filtration. The quality indicators of the concentrated phospholipids prepared by the above method meet the national industry standard LS / T3219-1994, and reach the quality indicators of the first-level concentrated phospholipids.

[0010] The reason why the working temperature is controlled at 50℃-130℃ is that the viscosity of concentrat...

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Abstract

The invention relates to a color and impurity removal technique, particularly a method for removing color and impurities from concentrated phospholipid. The method comprises the following steps: putting concentrated phospholipid in a closed vessel, and adding filter aid and decolorant into the vessel containing concentrated phospholipid; stirring at 50-130 DEG C under the negative pressure of 0.09-0.05 MPa in a vacuum state for 40 minutes; and after finishing stirring, carrying out pressure filtration. The filter aid is one or more of puffed soybean meal, perlite, kieselguhr and silica gel, and accounts for 1-15% of the concentrated phospholipid; and the decolorant is activated carbon, and accounts for 1-15% of the concentrated phospholipid. The invention adopts a physical method to implement color and impurity removal on the concentrated phospholipid at specific temperature in a vacuum environment, has the advantage of low equipment investment, is safe and convenient to operate in production, and can not influence the quality and properties of the concentrated phospholipid.

Description

Technical field [0001] The invention relates to a decolorization and impurity removal process, in particular to a method for removing color and impurities from concentrated phospholipids. Background technique [0002] Concentrated phospholipid refers to the product obtained by drying and dehydrating oily feet (also called sludge). Oily feet are the residues separated after oil refining. The waste generated in each step of the oil refining process is called oily feet. Common oily feet include soybean oil feet, peanut oil feet, rapeseed oil feet, sunflower oil feet and Sesame oil feet and so on. Concentrated phospholipid is a substance with high nutritional value. However, due to its dark color and a small amount of impurities such as sediment and meal, it affects people's consumption of it. [0003] In the prior art, the decolorization of concentrated phospholipids is decolorization using strong oxidizing agents such as hydrogen peroxide, and acetone extraction method is used for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23J7/00C07F9/10
Inventor 杨志华
Owner 杨志华
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