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Degumming process for processing vegetable oil by using immobilized phospholipase with assist of microwaves

An immobilized phospholipase, microwave-assisted technology, applied in the direction of fat oil/fat refining, fat production, etc., can solve the problems of long time required for degumming, long enzyme reaction time, high production cost, etc., to improve the speed of catalytic hydrolysis reaction, improve Enzyme activity, easy recovery effect

Inactive Publication Date: 2018-09-14
安徽德运粮油有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The removal effect of enzymatic degumming is good, but the disadvantage is that the current enzymatic degumming process has problems such as long enzyme reaction time, high equipment requirements for oil-water residue phase separation, long degumming time, etc., and the price of enzyme is relatively high. High, relatively high production cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A microwave-assisted immobilized phospholipase process vegetable oil degumming process, the specific steps are as follows:

[0024] (1) Immobilization of phospholipase A with sodium alginate as a carrier 1 , glutaraldehyde is the curing reaction of crosslinking agent for 5h;

[0025] The concentration of sodium alginate is 2.0%, phospholipase A 1 The amount added is 1.5mL;

[0026] (2) Microwave-promoted enzymatic degumming:

[0027] Take a certain amount of crude oil, heat it in a water bath until the temperature is 60°C, adjust the pH value of the system to 6.0, add a certain amount of immobilized phospholipase, so that the mass percentage of enzyme and crude oil is 0.10g / kg, under the condition of 300r / min Stir for 15 minutes;

[0028] Then transfer to the microwave electric field, and stir at the same time, the microwave power is 300W, keep the reaction temperature at 50°C, adopt the microwave treatment method of 3min, 8min, stir at 400r / min and microwave reacti...

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PUM

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Abstract

The invention discloses a degumming process for processing vegetable oil by using immobilized phospholipase with the assist of microwave. Sodium alginate is used as a carrier to immobilize phospholipase A1, so that immobilized phospholipase has strong the adaptability to a reaction environment compared with free enzymes in a solution, and the recovery of enzymes and products becomes simple; however, a certain period of time is needed for full contact and reaction of the immobilized phospholipase with phospholipids, so that an intermittent low-temperature microwave technology is adopted to assist the hydrolysis reaction of the phospholipase, then the catalytic hydrolysis reaction speed of the phospholipase to nonhydratable phospholipids is improved, and the nonhydratable phospholipids in the crude oil are converted into hydratable phospholipids in a short time; then low-temperature hydration treatment is carried out; colloids in the crude oil are fully condensed into large colloidal particles; and the colloids are removed by centrifugal separation. With the adoption of the method provided by the invention, nonhydratable phospholipids and hydratable phospholipids in the vegetable crude oil can be fully removed, and the method is suitable for colloid remove of any vegetable oil, and has a more outstanding colloid removing effect on seed oil with a high content of nonhydratable phospholipids.

Description

technical field [0001] The invention relates to the field of edible oil processing, in particular to a degumming process for treating vegetable oil with microwave-assisted immobilized phospholipase. Background technique [0002] The production of all edible vegetable oils is processed through crude oil degumming, impurity removal, deacidification, desolventization, drying, decolorization, deodorization and winterization dewaxing and other refining processes, regardless of the type index of crude oil and the grade of finished oil Regardless of the different requirements, the degumming section is essential in each process. [0003] The current degumming processes in the industry include hydration degumming, acid degumming, special degumming and enzymatic degumming. Among them, the general hydration degumming process can only remove hydratable phospholipids. Although acid degumming and special degumming can remove some non-hydratable phospholipids, the removal effect on soybea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/00
CPCC11B3/001C11B3/003C11B3/005
Inventor 李超
Owner 安徽德运粮油有限公司