A refining process for reducing chloropropanol esters in camellia oil

The technology of chloropropanol ester and camellia oil is applied in the direction of fat oil/fat refining, fat production, etc., which can solve the problems of reducing the content of chloropropanol ester compounds, increasing the potential harm of 3-chloropropanol ester, etc., and achieves the separation degree. And high yield, improve degumming effect, improve the effect of process procedures

Active Publication Date: 2020-03-31
衢州市疾病预防控制中心 +1
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AI Technical Summary

Problems solved by technology

3-chloropropanol ester is a potential food safety hazard factor, and its toxicological research is ongoing. There is no official report on the direct toxicological effect of 3-chloropropanol ester on the human body.
In addition, because the structure of 3-chloropropanol ester is similar to that of acylglycerol, it is speculated that the metabolic pathway of 3-chloropropanol ester in the body may be similar to that of acylglycerol, and it may be the substrate of lipase, which increases people's understanding of 3-chloropropanol. - Concerns about potential hazards of chloropropanol esters
[0003] At present, there is no refining method at home and abroad that can not only significantly reduce the content of chloropropanol esters in camellia oil, but also meet the national safety standards of camellia oil

Method used

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  • A refining process for reducing chloropropanol esters in camellia oil
  • A refining process for reducing chloropropanol esters in camellia oil

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Experimental program
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Effect test

Embodiment

[0018] A refining process for reducing chloropropanol esters in camellia oil, comprising the following steps:

[0019] 1) Filter the crude oil, which contains a small amount of colloid, remove mechanical impurities through filtration, then preheat, add water for hydration, set aside to settle, and separate to obtain oil and hydration oil; take hydration oil and add water, then add Phosphoric acid, instead of salt, reduces the source of Cl, neutralizes non-hydrophilic colloidal substances, improves the degumming effect, and finally neutralizes it with 0.5% liquid natron, stands for precipitation, and separates oil and soap;

[0020] 2) Crude oil is put into the decolorizing pot for decolorization, and is carried out in the decolorizing pot according to the conventional process;

[0021] 3) Deacidification and deodorization; then heating under the condition of low vacuum in the molecular distillation equipment, with the help of the difference in the free travel of each component...

experiment example

[0027] In addition to complying with the "Hygienic Standard for Edible Oil" GB2716-2005, the oil prepared by the above method also has the following advantages (number of test samples n=9)

[0028]

[0029]

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Abstract

The invention discloses a refining technology for reducing chloropropanol ester in camellia seed oil. The refining technology comprises the following steps: 1) filtering crude oil and removing mechanical impurities; then pre-heating and adding water to carry out hydration; standing and precipitating; separating to obtain oil and hydrated oil; then taking the hydrated oil and adding water; then adding phosphoric acid; finally, carrying out neutralization by utilizing liquid sodium silicate with the concentration of 0.5 percent; standing and precipitating; separating oil soap; 2) putting the crude oil into a de-coloring pot and de-coloring according to a conventional technology; 3) carrying out deacidification and deodorization; heating in molecular distillation equipment under a low vacuumcondition, and discharging free fatty acid in oil of a fraction and a low molecular weight odor substance along steam; 4) carrying out winterization and dewaxing to obtain a finished product. By adopting the refining technology disclosed by the invention, the content of chloropropanol ester compounds in the camellia seed oil can be remarkably reduced and potential hazards of oil products to humanbodies are prevented; the refining technology also can ensure that the refined camellia seed oil reaches national hygienic standards and the safety level of the camellia seed oil is improved; guarantees are provided for safe production of the camellia seed oil and guarantees are provided for health of consumers.

Description

technical field [0001] The invention specifically relates to a refining process for reducing chloropropanol esters in camellia oil. Background technique [0002] Chloropropanol esters are esterification products of chloropropanol compounds and fatty acids, and 3-chloropropanol esters are detected in a relatively high amount in oils and fats. 3-Chloropropanol is a potential food safety hazard factor, and its toxicological research is ongoing. There is no official report that 3-Chloropropanol has a direct toxicological effect on the human body. However, the 3-chloropropanol ester that enters the body can be hydrolyzed into free 3-MCPD under the action of intestinal pancreatic lipase to exert toxic effects. 3-MCPD can cause liver and kidney damage in mice, reduce sperm motility and sperm count in rats, inhibit the secretion of male hormones, and reduce reproductive ability and even infertility. In addition, glycidyl ester, a metabolite of 3-chloropropanol ester, is classified...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B3/00
CPCC11B3/001
Inventor 郑睿行周华汪尤刚祝华明方春福周香伦戴贤君
Owner 衢州市疾病预防控制中心
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