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Method for degrading gossypol in cottonseed oil

A cottonseed oil and gossypol technology, which is applied in the direction of fat oil/fat refining, fat production, etc., can solve the problems of no cottonseed oil degossypol process, long processing time, etc., and achieve the effects of low cost, simple design and easy operation.

Active Publication Date: 2016-06-22
GUANGXI UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The microbial removal method avoids the influence of chemical additives and solvent extraction on the functional properties of cottonseed protein, but the treatment time is longer, and it is limited to the detoxification of seed meal, and the detoxification of cottonseed crude oil has not been reported
In the cottonseed oil processing process, gossypol is mainly removed through oil refining processes such as deodorization and deacidification. At present, there is no gossypol process specifically for cottonseed oil.

Method used

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  • Method for degrading gossypol in cottonseed oil
  • Method for degrading gossypol in cottonseed oil
  • Method for degrading gossypol in cottonseed oil

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Embodiment 1- Embodiment 5

[0018] Embodiment 1-Example 5: A method for degrading gossypol in cottonseed oil, comprising the following steps: placing gossypol-containing cottonseed crude oil in a hydraulic cavitation device, and carrying out hydraulic cavitation treatment to cottonseed crude oil by circulation, The hydraulic cavitation device includes an adjustable bypass line 9 and a liquid storage tank 1, a pump 3, a flow meter 4, and a cavitator 6 that are connected in sequence through a pipeline 8, and the cavitator 6 is connected to the liquid storage tank 1 through a pipeline. Connected, the liquid storage tank 1 is provided with a condensate coil 2, one end of the adjustment bypass line 9 is connected with the liquid storage tank 1, and the other end is connected with the flow meter and the pipeline 8 between the pump, and the adjustment bypass line 9 and Control valves are arranged on the passage pipes 8 , and a pressure gauge 5 is installed on the pipe 8 at the inlet end of the cavitator 6 . Des...

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Abstract

The invention relates to a method for degrading gossypol in cottonseed oil. The method comprises the following steps: putting cottonseed crude oil which contains the gossypol in a hydraulic cavitation device; carrying out hydraulic cavitation processing on the cottonseed crude oil through circulation, wherein the hydraulic cavitation device comprises a cavitator, and process conditions for carrying out cavitation degradation on the cottonseed crude oil are as follows: inlet pressure is 0.1-0.3MPa, the processing temperature of the cottonseed crude oil is 25-35DEG C, processing time is 2-6h, and flow is controlled to 15-60L / min. The hydraulic cavitation technology is used for degrading the gossypol in the cottonseed oil, and the gossypol can be effectively degraded in the cottonseed oil through the cavitation processing. The method has the advantages of low processing cost and simpleness in operation, does not affect the nutrition ingredients of the cottonseed oil and can guarantee food safety. The highest degradation rate of the gossypol in the cottonseed oil can be 71.2%.

Description

technical field [0001] The invention relates to a method for degrading gossypol in cottonseed oil. Background technique [0002] Cottonseed oil is a traditional edible oil with a long history. It contains 60%-90% unsaturated fatty acids (linoleic acid and oleic acid). It has the functions of anti-oxidation, lowering cholesterol, and preventing arteriosclerosis. It is an important edible oil. and industrial oils. The cottonseed hair oil directly pressed from cottonseed contains a large amount of gossypol, among which gossypol in a free state has active groups (aldehyde groups and hydroxyl groups) that are toxic to animals and humans, and can cause diseases such as pigs, poultry, etc. , fish and rodent poisoning, and also have toxic effects on the nerves, blood vessels and reproductive system of the human body. Therefore, the degradation and removal of free gossypol in cottonseed oil is of great significance to improve the nutritional value and food safety of virgin cottonse...

Claims

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Application Information

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IPC IPC(8): C11B3/00
CPCC11B3/00
Inventor 程谦伟孟陆丽黄群孙庭广刘昭明
Owner GUANGXI UNIVERSITY OF TECHNOLOGY
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