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Grease degumming and refining method

A degumming method and oil degumming technology, applied in the direction of fat oil/fat refining, fat production, etc., can solve the problems of increasing production difficulty and economic investment, changing temperature, cumbersome process, etc.

Pending Publication Date: 2021-07-16
YIHAI LIANYUNGANG GRAIN & OIL IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method is cumbersome, needs to change the temperature continuously, and needs to add a large amount of hot water, which increases the difficulty of actual production and economic investment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0045] The present invention relates to a novel enzymatically degummed oil preparation method, and it is found that adding cold deionized water can help reduce phospholipids below 12ppm, even below 10ppm.

[0046] Therefore, the present invention provides an enzymatic degumming method, which includes: adding water at 1-30° C., accounting for 1-5% by weight of oil, to the reaction system of enzymatic degumming. The type of water may be water conventionally used in the field for oil degumming, such as deionized water. The added amount of water is preferably 2-4% of the fat weight. The water temperature is preferably below 20°C, such as 2-25°C, preferably 5-15°C, more preferably 10±3°C.

[0047] Usually, the raw material oil can be heated to 50-60°C, preferably 55-58°C, then add degumming enzyme and water at 1-30°C accounting for 1-5% of the oil weight to the heated raw oil, and stir evenly to make It reacts for 0.5-2 hours, such as 1-2 hours. It should be understood that the ...

Embodiment 1

[0071] 14 tons of soybean oil, heated to 58°C, added 28kg, 10% by weight DSM PLC aqueous solution, added 3% by weight of oil, deionized water at 8°C, and reacted at 58°C for 1 hour. Add 21kg, 50% by weight of citric acid aqueous solution, and react for 1h. Add 90kg of 4% by weight NaOH solution to react for 15min. Add 6.83kg, 10% by weight Novozymes PLA1 aqueous solution, react for 3h, and centrifuge. The resulting degummed oil had a phosphorus content of 4 ppm.

Embodiment 2

[0073] 14 tons of soybean oil, heated to 58°C, added 28kg, 10% by weight DSM PLC aqueous solution, added 3% by weight of oil, deionized water at 18°C, and reacted at 58°C for 1 hour. Add 50kg, 21% by weight of citric acid aqueous solution, and react for 1h. Add 90kg, 4% by weight NaOH solution and react for 15min. Add 6.83kg, 10% by weight Novozymes PLA1 aqueous solution, react for 3h, and centrifuge. The phosphorus content of the obtained degummed oil was 5 ppm.

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Abstract

The invention provides a grease degumming and refining method. Specifically, the invention provides an enzymatic degumming method, which comprises the step of carrying out enzymatic degumming in the presence of 1-30 DEG C water accounting for 1-5% of the weight of grease. By adopting the degumming method disclosed by the invention, the phosphorus content of the degummed oil can be controlled below 15 ppm.

Description

technical field [0001] The invention relates to an oil degumming method and an oil refining method. Background technique [0002] The refining process of vegetable oil mainly includes the processes of degumming, deacidification, decolorization and deodorization. Degumming is the first and most important step in oil refining. Incomplete degumming will increase the burden on the subsequent stages, and will also affect the storage stability and edible flavor of the refined oil. Traditional hydration degumming and acid degumming, due to the existence of alkali refining process, need to consume a lot of water for washing, so not only the water consumption is large, but also the sewage will increase, and a large amount of neutral oil will be lost at the same time. As a new type of degumming technology, enzymatic degumming has the advantages of thorough degumming, increased oil yield, mild reaction conditions, less acid and alkali consumption, and low temperature of added water. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/00C11B3/04C11B3/06
CPCC11B3/001C11B3/003C11B3/04C11B3/06
Inventor 赵向阳袁强从放刘想陈涛惠志丹詹友新李飞
Owner YIHAI LIANYUNGANG GRAIN & OIL IND CO LTD