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Refined plant oil and preparation method thereof

A technology for refining vegetable oils and plants, applied in the direction of fat oil/fat refining, fat production, etc., can solve the problems of high trans fatty acid content, increased vitamin E loss, incomplete degumming and alkali refining, etc., and achieve low trans fatty acid content. , The loss rate of vitamin E is low, and the effect of avoiding high deodorization temperature

Inactive Publication Date: 2019-02-15
JIXI COUNTY HANHUI AGRI DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the degumming and alkali refining is not thorough, there are colloids that have not evolved completely in the oil, and in the deodorization and deodorization process, the deodorization temperature is too high, and the deodorization time is too long, resulting in high trans fatty acid content and increased vitamin E loss.
[0005] In the Chinese patent CN102041168B, a method of refining rapeseed oil is disclosed, which is realized by adding salt, edible alkali, Tween 80 and Tween 60 aqueous solution at a high temperature of 90-110°C. The purpose of dephosphorization is to obtain refined oil through the decolorization process. The treatment temperature of this method is very high, which not only consumes energy, but also easily causes the loss of oil flavor and oxidation. In addition, the composition of phosphoric acid solution is too complicated, which requires additional decolorization process to complete

Method used

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  • Refined plant oil and preparation method thereof
  • Refined plant oil and preparation method thereof
  • Refined plant oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The preparation method of the refined vegetable oil of the present embodiment may further comprise the steps:

[0033] (1) Impurity removal: insert the ultrasonic probe into the vegetable crude oil, ultrasonically treat it for 20 minutes, and then put the ultrasonically treated vegetable crude oil into the foam ceramic filter plate for filtration;

[0034] (2) Degumming:

[0035] 2A, a degumming neutralization reaction: add the vegetable crude oil after the impurity removal in step (1) into the neutralization reactor, first heat the crude oil to 45°C, and then add 0.1% of the crude oil weight and a concentration of 75% Phosphoric acid, after fully mixing, after staying for 10 minutes, add the prepared edible alkali solution, stir for 30 minutes, let it stand for 3 hours, open the bottom valve, and discharge the bottom sediment;

[0036] 2B. Secondary degumming and neutralization reaction: put the crude vegetable oil treated in 2A into another neutralization reaction ke...

Embodiment 2

[0050] The preparation method of the refined vegetable oil of the present embodiment may further comprise the steps:

[0051] (1) Impurity removal: Insert the ultrasonic probe into the vegetable crude oil, ultrasonically treat it for 30 minutes, and then put the ultrasonically treated vegetable crude oil into the foam ceramic filter plate for filtration;

[0052] (2) Degumming:

[0053] 2A, a degumming neutralization reaction: add the vegetable crude oil after the impurity removal in step (1) into the neutralization reactor, first heat the crude oil to 55°C, and then add 0.5% of the crude oil weight and a concentration of 75% Phosphoric acid, after fully mixing, after staying for 20 minutes, add the prepared edible alkali solution, stir for 50 minutes, let it stand for 5 hours, open the bottom valve, and discharge the bottom sediment;

[0054] 2B. Secondary degumming and neutralization reaction: Put the crude vegetable oil treated in 2A into another neutralization reaction ke...

Embodiment 3

[0068] The preparation method of the refined vegetable oil of the present embodiment may further comprise the steps:

[0069] (1) Impurity removal: Insert the ultrasonic probe into the vegetable crude oil, ultrasonically treat it for 25 minutes, and then put the ultrasonically treated vegetable crude oil into the foam ceramic filter plate for filtration;

[0070] (2) Degumming:

[0071] 2A, a degumming neutralization reaction: add the vegetable crude oil after the impurity removal in step (1) into the neutralization reactor, first heat the crude oil to 50°C, and then add 0.3% of the crude oil weight and a concentration of 75% Phosphoric acid, after fully mixing, after staying for 15 minutes, add the prepared edible alkali solution, stir for 40 minutes, let it stand for 4 hours, open the bottom valve, and discharge the bottom sediment;

[0072] 2B. Secondary degumming and neutralization reaction: put the crude vegetable oil treated in 2A into another neutralization reactor thr...

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Abstract

The invention relates to the technical field of grease refining and particularly relates to refined plant oil and a preparation method thereof. The preparation method comprises the following steps: (1) carrying out decontamination; (2) degumming, namely carrying out a primary degumming neutralization reaction and a secondary degumming neutralization reaction; (3) removing soap; (4) decoloring, namely carrying out pre-decoloring and activated clay decoloring; (5) carrying out deodorization. By adopting the refined plant oil and the preparation method thereof, the refining method is simple in procedure and low in cost, impurities such as colloid and benzopyrene in plant oil can be effectively removed, the prepared plant oil has the advantages of being low in trans-fatty acid content and lowin vitamin E loss rate, in addition, the refined plant oil is thick in fragrance, good in taste, high in quality and rich in nutrition.

Description

technical field [0001] The invention relates to the technical field of oil refining, in particular to a refined vegetable oil and a preparation method thereof. Background technique [0002] Vegetable oil contains a certain amount of impurities, such as phospholipids, fatty acids, pigments, odorous compounds, etc. These impurities must be removed from the oil, so that the vegetable oil meets the requirements for direct human consumption. The refining of vegetable oil generally adopts two methods to refine edible oil and fat, namely chemical refining and physical refining. In chemical refining, it is generally treated with water first and then with alkali to remove the gel and free fatty acids of the oil. Alkali reacts with free fatty acids to form fatty acid salts, and the fatty acid salts formed under the condition of coexistence of oil and water form a large amount of emulsion, and the neutral oil is absorbed in the emulsion, resulting in serious oil loss. Especially for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/16C11B3/00C11B3/04C11B3/06C11B3/10
CPCC11B3/001C11B3/008C11B3/04C11B3/06C11B3/10C11B3/16
Inventor 朱雅红吴建忠陈巨川陈敏邵绩飞朱景娟周秋红吴建军曹建民汪笑红
Owner JIXI COUNTY HANHUI AGRI DEV
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