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Method for simultaneously measuring benzoyl peroxide and dimethyl fumarate in food

A technology of benzoyl peroxide and dimethyl fumarate, which is used in measuring devices, instruments, scientific instruments, etc., can solve the problems of large differences in detection conditions, and achieve high accuracy, ensure accuracy, and efficient separation and determination. Effect

Inactive Publication Date: 2019-11-15
GUANGZHOU INST FOR FOOD INSPECTION(GUANGZHOU INSPECTION CENT FOR WINE & SPIRITS)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the detection methods of benzoyl peroxide and dimethyl fumarate in food, there are national standards and industry standard methods, but they are all detection methods for a single illegal additive, and the detection conditions of the same type of method vary greatly

Method used

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  • Method for simultaneously measuring benzoyl peroxide and dimethyl fumarate in food
  • Method for simultaneously measuring benzoyl peroxide and dimethyl fumarate in food
  • Method for simultaneously measuring benzoyl peroxide and dimethyl fumarate in food

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A method of simultaneously measuring benzoyl peroxide and dimethyl fumarate in food of the present embodiment comprises the following steps:

[0046] Step 1. Make a sample of the food to be tested. The food to be tested in this embodiment is a solid food made of dry rice noodles. The solid food to be tested is crushed until the particle diameter is not greater than 0.3mm as a sample. Benzoyl peroxide and dimethyl fumarate were not detected in the samples of this embodiment. Therefore, accurately weigh 1 kg of the sample, add 4 mg of benzoyl peroxide and 4 mg of dimethyl fumarate, stir and mix to obtain the sample to be tested, wherein the concentration of benzoyl peroxide is 4 mg / kg, fumarate The fortified concentration of dimethyl ester was 4 mg / kg.

[0047] Step 2, prepare the gradient mixed standard solution of benzoyl peroxide and dimethyl fumarate;

[0048] Take by weighing 0.1000g benzoyl peroxide in a beaker, said benzoyl peroxide is a benzoyl peroxide standard...

Embodiment 2

[0063] A method of simultaneously measuring benzoyl peroxide and dimethyl fumarate in food of the present embodiment comprises the following steps:

[0064] Step 1, the difference from Step 1 of Example 1 is: accurately weigh 1 kg of the sample, add 32 mg of benzoyl peroxide and 32 mg of dimethyl fumarate, stir and mix to obtain the sample to be tested, wherein benzoyl peroxide Acyl was spiked at a concentration of 32 mg / kg, and dimethyl fumarate was spiked at a concentration of 32 mg / kg.

[0065] Step 2, prepare the gradient mixed standard solution of benzoyl peroxide and dimethyl fumarate, which is the same as step 2 of Example 1.

[0066] Steps 3 to 6 of this embodiment are the same as the corresponding steps of Embodiment 1. Starting from step 3, 6 sets of parallel experiments were carried out. The results of benzoyl peroxide and dimethyl fumarate determined by the method of this example are shown in Table 4 and Table 5.

Embodiment 3

[0068] A method of simultaneously measuring benzoyl peroxide and dimethyl fumarate in food of the present embodiment comprises the following steps:

[0069] Step 1, the difference from step 1 of Example 1 is: accurately weigh 1 kg of the sample, add 160 mg of benzoyl peroxide and 160 mg of dimethyl fumarate, stir and mix to obtain the sample to be tested, wherein benzoyl peroxide Acyl was spiked at a concentration of 160 mg / kg, and dimethyl fumarate was spiked at a concentration of 160 mg / kg.

[0070] Step 2, prepare the gradient mixed standard solution of benzoyl peroxide and dimethyl fumarate, which is the same as step 2 of Example 1.

[0071] Steps 3 to 6 of this embodiment are the same as the corresponding steps of Embodiment 1. Starting from step 3, 6 sets of parallel experiments were carried out. The results of benzoyl peroxide and dimethyl fumarate determined by the method of this example are shown in Table 4 and Table 5.

[0072]

[0073]

[0074]

[0075] ...

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Abstract

The invention provides a method for simultaneously measuring benzoyl peroxide and dimethyl fumarate in a food. The method comprises the following steps: 1, preparing a sample into a to-be-measured sample; 2, preparing a gradient mixed standard solution of the benzoyl peroxide and the dimethyl fumarate; 3, weighing the sample into a centrifuge tube, adding a methanol aqueous solution, and carryingout ultrasonic extraction after oscillating and uniform mixing; 4, adding a ferrous sulfate solution and an acetic acid solution into the centrifuge tube, reducing benzoyl peroxide in the sample intobenzoic acid, marking up the volume to scale by using methanol water, carrying out ultrasonic extraction and centrifugation after further oscillating and uniform mixing, taking supernate and making the supernate pass through a microporous filter membrane to obtain a to-be-measured solution; 5, carrying out measuring by using a high performance liquid chromatograph, and drawing standard curves of the benzoyl peroxide and the dimethyl fumarate; and 6, calculating the content of the benzoyl peroxide and the content of the dimethyl fumarate in the sample. The efficient, accurate, stable and reliable detection method is provided for simultaneously measuring the benzoyl peroxide and the dimethyl fumarate in the food.

Description

technical field [0001] The invention relates to the technical field of food detection, in particular to a method for simultaneously measuring the contents of benzoyl peroxide and dimethyl fumarate in food. Background technique [0002] Benzoyl peroxide is a white crystal powder with a slight smell of bitter almonds, soluble in ether, chloroform, benzene, and slightly soluble in water. Benzoyl peroxide is a strong oxidizing agent that has bleaching and antiseptic effects on food, and is easily illegally added to food. Benzoyl peroxide is irritating to the eyes, skin and mucous membranes. Benzoic acid, the decomposition product of benzoyl peroxide, is easy to increase the burden on the liver after being ingested by the human body, and in severe cases, it will cause pathological changes in the liver and kidney. [0003] Dimethyl Fumarate (Dimethyl Fumarate), referred to as DMF, is a white crystal or crystalline powder, soluble in ethyl acetate, chloroform, acetone and alcohol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/60
CPCG01N30/02G01N30/60
Inventor 彭名军宋安华毛新武刘冬豪林子豪姚子升黄景初蔡伟谊曹霞飞曾游漆亚乔汪宁曾羲吴嘉文叶春常
Owner GUANGZHOU INST FOR FOOD INSPECTION(GUANGZHOU INSPECTION CENT FOR WINE & SPIRITS)
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