Degumming process for edible vegetable oil and application thereof

A technology of edible vegetable oil and process, which is applied in the field of degumming process of edible vegetable oil, can solve the problems of increasing the consumption of raw materials and neutral oil, low glue content, reducing the yield of products, etc., and achieves excellent degumming effect

Active Publication Date: 2012-07-04
SHANGHAI HAOYOU IND EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the effect of the simple degumming section of the oil refining production line is not ideal, it must achieve a relatively complete degumming effect through neutralization and deacidification or through decolorization and the auxiliary degumming effect of activated clay. However, this kind of auxiliary degumming process will inevitably reduce the product yield rate, increase the consumption of raw and auxiliary materials and neutral oil, and also increase the possibility of wastewater discharge
[0005] At present, the physical refining process of edible vegetable oil is only used in the processing of palm oil with low gum content

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Raw materials: Canadian canola leached rapeseed oil (the content of non-hydratable phospholipids is one of the highest among vegetable oils), acid value 1.8mgKOH / g, phosphorus content 650ppm.

[0070] Degumming using the following process:

[0071] Rapeseed oil leached at room temperature (containing impurities99.5%; Add normal temperature water (20- 50°C), add soft water with twice the weight content of phospholipids, after adding water, heat exchange and cooling through a plate heat exchanger, and water-oil with an oil temperature of 35°C enters the hydration reaction tank. The hydration reaction tank is equipped with a stirrer with a rotating speed of 35-75 rpm, and the residence time of hydration reaction is 90 minutes. Through the hydration reaction tank, the reaction mixture passes through a plate heat exchanger to exchange heat with the mixture in the hydration reaction tank, and then heats to 85°C through a plate or tube heat exchanger, and is separated by a di...

Embodiment 2

[0074] Raw material: Canadian canola rapeseed oil, acid value 1.8mgKOH / g, phosphorus content 650ppm.

[0075] Degumming using the following process:

[0076] Rapeseed oil at normal temperature (impurity <0.2%, FFA content 0.9%) is heated to 65°C with a plate or tube heat exchanger (heater), and a knife-type or centrifugal mixer is added with a concentration of 50wt% citric acid aqueous solution until the lemon The acid accounts for 0.28% of the crude oil weight, and enters the reaction tank with a stirrer, the stirring speed is 45-60 rpm, and the reaction time is 30 minutes. Water (20-50°C), the amount of water added is soft water twice the weight content of phospholipids, after adding water, it is cooled by heat exchange through a plate heat exchanger, and the water-oil with an oil temperature of 35°C enters the hydration reaction tank. The hydration reaction tank is equipped with a stirrer with a rotating speed of 35-75 rpm, and the residence time of hydration reaction is 9...

Embodiment 3

[0079] Raw materials: crude corn germ oil, acid value 1.0mgKOH / g, phosphorus content 300ppm.

[0080] Degumming using the following process:

[0081] Normal temperature crude corn germ oil (impurity 99.5% that non-hydratable phospholipid is converted into hydratable phospholipid after reaction; Add normal temperature water (20-50 ℃), the amount of water added is soft water with 1.5 times the weight content of phospholipids, after the water is added, it is cooled by heat exchange through a plate heat exchanger, and the water-oil with an oil temperature of 20 ℃ enters the hydration reaction tank. The hydration reaction tank is equipped with a stirrer with a rotating speed of 35-75 rpm, and the residence time of hydration reaction is 45 minutes. Through the hydration reaction tank, the reaction mixture passes through a plate heat exchanger to exchange heat with the mixture in the hydration reaction tank, and then heats to 75°C through a plate or tube heat exchanger, and is separ...

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Abstract

The invention relates to a degumming process for edible vegetable oil and the application thereof. The degumming process for edible vegetable oil comprises the following steps: reacting raw oil with an acid to convert non-hydrated phospholipids in the raw oil into hydrated phospholipids, agglomerating micelles by hydration, and performing centrifugal separation to obtain degummed oil. The degumming process for edible vegetable oil can be applied to refining of edible vegetable oil. The invention further discloses a process of refining edible vegetable oil, which can produce RBD oil products by performing the following steps in sequence: degumming process mentioned above, decoloring treatment, deacidifying treatment and deodorizing treatment. The degumming process for edible vegetable oil is suitable for degumming of various edible vegetable oil, particularly seed oil with high phosphorus content (more particularly seed oil with high non-hydrated phospholipids content), and has excellent degumming effect. The degumming process is an innovation in oil and fat degumming aspect, and besides, the improvement on the degumming process promotes the generation of novel physical refining techniques in oil processing.

Description

technical field [0001] The invention relates to the field of edible oil processing, in particular to a degumming process of edible vegetable oil and its application. Background technique [0002] The production of all edible vegetable oils is processed through refining processes such as crude oil degumming, depurification, deacidification, desolventization, drying, decolorization, deodorization and winterization dewaxing. Due to the requirements of crude oil types and product oil grades Different, the process technology of the processing process may be slightly different, but no matter what the type index of crude oil and the grade requirements of refined oil are different, the degumming section is indispensable in each process. [0003] The current degumming processes in the industry include water degumming, special degumming and enzymatic degumming. Among them, the disadvantage of water degumming is that it cannot remove non-hydratable phospholipids; the disadvantage of s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/02C11B3/04C11B3/16
Inventor 丁泓滨
Owner SHANGHAI HAOYOU IND EQUIP
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