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Edible vegetable oil aflatoxin adsorption degradation method

A technology for aflatoxin and edible vegetable oil, which is applied in the fields of silicon compounds, non-metallic elements, fat oil/fat refining, etc., can solve the problem of debating safety, and achieves good detoxification effect, stable chemical and physical properties, and low equipment investment. Effect

Inactive Publication Date: 2016-02-03
冯学行 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regardless of the advantages and detoxification effects of these two methods, the fatal flaw is that none of the materials used are production aids allowed in the GB2760 "Usage Standards for Food Additives", and their safety is open to question.

Method used

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  • Edible vegetable oil aflatoxin adsorption degradation method

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Experimental program
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Effect test

Embodiment 1

[0036] Edible vegetable oil aflatoxin adsorption degradation method, its specific steps are as follows:

[0037] (1) Use magnesium silicate as an adsorbent for adsorption and degradation of edible vegetable oil aflatoxin by burning at 650°C for 2-3 hours;

[0038] (2) Add grease not exceeding 2 / 3 of the volume of the tank in the electric stirring tank, start the mixer, make its rotating speed > 60r / min, and evenly add 3.0% adsorbent of the total amount of grease (the acid value of the grease is 4.5 mg / g), stirring at room temperature for 30 minutes, precipitation for 30 minutes for affinity adsorption;

[0039] (3) Use a plate and frame filter for coarse filtration, and then use a cardboard special filter to add a microporous filter plate with a pore size of 0.22um for microfiltration, to remove aflatoxin B 1 Reduced to 4μg / kg, which is lower than the national standard of 20μg / kg and meets the requirements of the EU standard of 10μg / kg.

Embodiment 2

[0041] Edible vegetable oil aflatoxin adsorption degradation method, its specific steps are as follows:

[0042] (1) Use magnesium silicate as an adsorbent for adsorption and degradation of edible vegetable oil aflatoxin by burning at 650°C for 2-3 hours;

[0043] (2) Add grease not exceeding 2 / 3 of the volume of the tank in the electric stirring tank, start the mixer, make its rotating speed > 60r / min, and evenly add 2.5% adsorbent of the total amount of grease (the acid value of the grease is 2.8 mg / g), stirring at room temperature for 30 minutes, precipitation for 30 minutes for affinity adsorption;

[0044] (3) Use a plate and frame filter for coarse filtration, and then use a cardboard special filter to add a microporous filter plate with a pore size of 0.22um for microfiltration, to remove aflatoxin B 1 Reduced to 8μg / kg, which is lower than the national standard of 20μg / kg and meets the requirements of the EU standard of 10μg / kg.

Embodiment 3

[0046] Edible vegetable oil aflatoxin adsorption degradation method, its specific steps are as follows:

[0047] (1) Use magnesium silicate as an adsorbent for adsorption and degradation of edible vegetable oil aflatoxin by burning at 650°C for 2-3 hours;

[0048] (2) Add grease not exceeding 2 / 3 of the volume of the tank in the electric stirring tank, start the mixer, make its rotating speed > 60r / min, and evenly add 1.5% of the total amount of grease (the acid value of the grease is 2.1 mg / g), stirring at room temperature for 30 minutes, precipitation for 30 minutes for affinity adsorption;

[0049] (3) Use a plate and frame filter for coarse filtration, and then use a cardboard special filter to add a microporous filter plate with a pore size of 0.22um for microfiltration, to remove aflatoxin B 1 Reduced to 7μg / kg, which is lower than the national standard of 20μg / kg and meets the requirements of the EU standard of 10μg / kg.

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Abstract

The present invention relates to an edible vegetable oil aflatoxin adsorption degradation method, which comprises: burning magnesium silicate for 2-3 h at a temperature of 650 DEG C so as to be adopted as an adsorbent; adding grease to an electric stirring tank, starting a stirrer, uniformly adding the adsorbent having the amount of 1.5-3.0% of the total amount of the grease (the adding amount adopts the acid value as the reference, the adding amount is 1.5-2.0% when the acid value is less than or equal to 2.5 mg / g, and the adding amount is 2.0-3.0% when the acid value is more than 2.5 mg / g), stirring for 30 min at a normal temperature, precipitating for 30 min, and carrying out affinity adsorption, wherein the volume of the grease does not exceed 2 / 3 of the volume of the tank, and the rotation speed is more than 60 r / min; and carrying out coarse filtration by using a plate and frame filter, and carrying out micro-filtration by using a special paper plate filter provided with a micro-pore filtration plate having a pore size of 0.22 [mu]m so as to reduce the aflatoxin B1 to less than or equal to 5 [mu]g / kg, wherein the content is lower than the national standard 20 [mu]g / kg, and meets the EU standard 10 [mu]g / kg requirement. According to the present invention, with the method the aflatoxin B1 content of 200 [mu]g / kg can be reduced to less than 5 [mu]g / kg, and the detoxified rate is more than or equal to 97%.

Description

technical field [0001] The invention relates to an edible vegetable oil aflatoxin adsorption and degradation method. Background technique [0002] Pressed peanut oil is a strong-flavored peanut oil made from peanut kernels, which is processed by crushing, roasting and pressing. Because of its pure taste and strong aroma and attractive smell, it is favored by consumers and has become a special food in various places. However, in recent years, due to aflatoxin B in Hainan, Guangdong and Guangxi, etc. 1 The problem of exceeding the standard has pushed the pressed peanut oil to the forefront of food safety, causing consumers to "talk about oil color change" and avoid it. On May 7, 2015, CCTV's "Focus Interview" column also reported on aflatoxin B in pressed peanut oil in Wuzhou, Guangxi and Zhaoqing, Guangdong. 1 An exclusive interview was conducted on the issue of exceeding the standard. [0003] Aflatoxin B 1 It is the most toxic mycotoxin found so far, and its toxicity i...

Claims

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Application Information

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IPC IPC(8): C11B3/10C11B3/16B01J20/10
Inventor 冯学行陈初良黄冠慈吴青山
Owner 冯学行