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Method for removing aflatoxins in vegetable oil

An aflatoxin and vegetable oil technology, applied in the direction of fat oil/fat refining, fat production, etc., can solve the problems of incomplete removal of adsorbents in vegetable oil, incomplete removal of aflatoxin, loss of nutrients in vegetable oil, etc. Radiation performance, excellent UV resistance, affordable effect

Inactive Publication Date: 2019-04-02
GUANGXI NANNING SHENGQIAN TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the problems of incomplete removal of aflatoxin in vegetable oil, poor detoxification effect, incomplete removal of adsorbent in vegetable oil, large residual amount of harmful substances, serious loss of nutrient components of vegetable oil and the like in the prior art, and provide a A kind of method that utilizes ultraviolet ray-magnesium silicate gel column to remove aflatoxin in vegetable oil

Method used

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Examples

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Embodiment 1

[0032] The preparation process of the magnesium silicate gel column used in this example is as follows: take 50 parts of attapulgite and put it into the reaction kettle, add 150 parts of NaOH solution with a concentration of 5mol / L, the stirring speed is 100 r / min, and the stirring time is 10min , add dropwise 100 parts of 5mol / L MgCl 2solution, the stirring speed is 25r / min, the stirring time is 20min, after fully mixing, the reaction temperature is 130°C for hydrothermal reaction for 6h, after aging, centrifugal separation, discard the supernatant, wash the precipitate with ethanol, and put it under the condition of 110°C After drying, the filter cake was pulverized to obtain magnesium silicate powder; 50 parts of magnesium silicate powder prepared by hydrothermal method, 7 parts of modified montmorillonite powder and 1.0 part of coupling agent were added to 43 parts of Stir and mix the polyvinylidene fluoride solution to form a casting film, let it stand for defoaming for 2...

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Abstract

The invention belongs to the field of quality safety of grain and oil, in particular to a method for removing aflatoxins in vegetable oil by virtue of an ultraviolet and magnesium silicate gel columncombined detoxification mode. The vegetable oil is placed in a glass ware, the thickness of the oil layer is controlled to be 1.5-3 cm, the length of an irradiation area is 0.5-1.5 m, the flow rate ranges from 3 m<2> / h to 10 m<2> / h, near ultraviolet wave (with a wavelength ranging from 375 nm to 390 nm in an UVA wave band) is adopted for excitation fluorescence for removing toxicity of the vegetable oil, and the vegetable oil is detoxified by a magnesium silicate gel column after ultraviolet excitation fluorescence irradiation; the method can effectively remove various aflatoxins in the vegetable oil, the detoxification rate can reach more than 99.6%, impurities and microorganisms in the vegetable oil can also be removed, and meanwhile, nutrient substances in the vegetable oil can be wellretained; a device is simple, and the method is easy to operate and stable in detoxification effect.

Description

technical field [0001] The invention belongs to the field of grain and oil quality safety, and specifically relates to a method for removing aflatoxin in vegetable oil by using an ultraviolet-magnesium silicate gel column combined with a detoxification method. Background technique [0002] Aflatoxin (Aflatoxin referred to as AFT) is a general term for a class of substances with similar chemical structures. It is a secondary metabolite produced by Aspergillus flavus and Aspergillus parasiticus. The main structure is dihydrofuran ring and oxinone (coumarin) , the former is a toxic substance, and the latter may be related to carcinogenicity. At present, there are more than 20 species whose structures have been determined, including B1, B2, M1, M2, etc. Among them, B1 is the most toxic, its toxicity is 10 times that of potassium cyanide, 68 times that of arsenic, and its carcinogenicity is dimethylnitrosamine 75 times that of carcinogen, which is the strongest chemical carcinog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/00C11B3/10
CPCC11B3/00C11B3/10
Inventor 钟安祺
Owner GUANGXI NANNING SHENGQIAN TECH DEV CO LTD
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