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Method for synchronously degumming and deacidifying phospholipase and lipase

A technology of phospholipase and lipase, which is applied in the field of synchronous degumming and deacidification of phospholipase and lipase, can solve the problems of accelerating oil oxidation, degumming and deacidification, etc., so as to reduce refining time and achieve good degumming and deacidification effects , The effect of saving the refining process

Inactive Publication Date: 2018-05-18
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, separate enzymatic degumming and deacidification have been widely studied, and all of them have met the requirements of physical refining, but the separate degumming and deacidification takes a long time, which will accelerate the oxidation of oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0005] Step 1: 100g crude soybean oil (3.1% containing phospholipids) is added in the three-neck round bottom flask of 500ml, and the round bottom flask is placed in the water bath pan that mechanical stirrer is housed, adjust water bath temperature to be respectively 40,45, 50, 55, 60°C. When the temperature reaches the set reaction temperature, add free phospholipase A to the round bottom flask respectively 1 Lecitase Ultra (2%, 3%, 4%, 5%, 6%, based on phospholipid weight), free lipase NS81006 (1%, 1.5%, 2%, 2.5%, 3%, based on oil weight), water ( 2%, 2.5%, 3%, 3.5%, 4%, based on oil weight), phytosterols (0.7, 0.9, 1.1, 1.3, 1.5g), the set stirring speed is 800, 1000, 1200, 1400, 1600rpm respectively , reacted under the above conditions for 6, 8, 10, 12, 14h;

[0006] Step 2: After the reaction, wash the reaction mixture with water (water:oil=2:1, 65°C), centrifuge to obtain degummed and deacidified oil, measure the acid value of the oil, the amount of residual phosphoru...

specific Embodiment approach 2

[0007] Embodiment 2: The difference between this embodiment method and the embodiment method 1 is that in the step 1, the temperature of the water bath is selected as 45, 50, and 55° C., and other components and steps are the same as the embodiment 1.

specific Embodiment approach 3

[0008] Specific implementation mode three: the difference between this implementation method and specific implementation method one is that phospholipase A is selected in step one 1 The addition amount is 3%, 4%, and 5%, and other compositions and steps are the same as those in Embodiment 1.

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Abstract

The invention discloses a method for synchronously degumming and deacidifying phospholipase and lipase. The method is characterized by adding the phospholipase, the lipase and phytosterol into soybeancrude oil simultaneously to obtain a synchronous degumming and deacidifying optimum response parameter; the method can be used for simultaneously removing phospholipids and free fatty acid in the soybean crude oil and generating phytosterol ester; under the technological process, the degumming and deacidifying effects of soybean oil are relatively good, the residual phosphorus content of the soybean oil is 10.5mg / kg, the acid value is 1.510mgKOH / g, and the phytosterol ester content is 1.657g / 100g. The method can be used for reducing the refining working procedures of the soybean oil, the refining time is reduced, the oxidation degree of grease is lowered, meanwhile, the functional soybean oil rich in the phytosterol ester can be obtained, the functionality and oxidation resistance of thegrease are increased, and the economic benefit of grease industry is improved.

Description

technical field [0001] The invention relates to a method for synchronous degumming and deacidification of phospholipase and lipase. Background technique [0002] There are a certain amount of phospholipids and free fatty acids in unrefined soybean oil, which need to be removed by degumming and deacidification refining processes respectively. In industrial production, the problems caused by non-hydratable phospholipids are more complicated, which will lead to the formation of flocs during the frying process of this oil, as well as the phenomenon of odor and color change in the finished oil, and its own hydrophilic property Poor, not easy to remove by hydration. At present, enzymatic method is commonly used for degumming of crude oil, so as to better remove phospholipids in crude oil. Alkaline refining deacidification and physical deacidification methods both have the problem of high loss when used in crude oil deacidification. Chemical refining will also cause a large loss o...

Claims

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Application Information

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IPC IPC(8): C11B3/00
CPCC11B3/003
Inventor 刘天一邹德智郎松彬于殿宇齐晓芬江连洲王立琦
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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