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Detection reagent and kit for rapidly detecting potassium bromate

A detection reagent, potassium bromate technology, which is applied in the field of detection reagents and kits for rapid detection of potassium bromate, which can solve the problems of high analysis cost and dependence on equipment, and achieve the effects of rapid detection, short color development time, and stable color

Pending Publication Date: 2021-05-25
GUANGZHOU ANNUO FOOD SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a reagent and a kit for rapid detection of potassium bromate, aiming to solve the technical problems of high analysis cost and the need to rely on professional equipment in the prior art to a certain extent in the detection of potassium bromate

Method used

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  • Detection reagent and kit for rapidly detecting potassium bromate
  • Detection reagent and kit for rapidly detecting potassium bromate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Take 1g of flour in a 15mL centrifuge tube, add 5mL of deionized water, oscillate and mix well and let stand for 5 minutes, take 0.5mL supernatant into a 2mL centrifuge tube, add 1 drop of 0.5mol / L hydrochloric acid and 1.8mol / L potassium iodide 2 drops of solution. After oscillating and mixing, place it at room temperature for 1 minute and compare it with potassium bromate detection standard color card I for approximate quantification.

Embodiment 2

[0046] Take 1g of flour in a 15mL centrifuge tube, add 5mL of deionized water, oscillate and mix well and let stand for 5 minutes, take 0.5mL supernatant into a 2mL centrifuge tube, add 1 drop of 0.5mol / L hydrochloric acid and 2.3mol / L potassium iodide 2 drops of solution. After oscillating and mixing, place it at room temperature for 1 minute and compare it with potassium bromate detection standard color card I for approximate quantification.

Embodiment 3

[0048] Take 1g of flour in a 15mL centrifuge tube, add 5mL of deionized water, oscillate and mix well and let stand for 5 minutes, take 0.5mL supernatant into a 2mL centrifuge tube, add 1 drop of 1.0mol / L hydrochloric acid and 1.8mol / L potassium iodide 2 drops of solution. After oscillating and mixing, place it at room temperature for 1 minute and compare it with potassium bromate detection standard color card I for approximate quantification.

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Abstract

The invention provides a detection reagent and a kit for rapid detection of potassium bromate, the detection reagent is used for rapid detection of potassium bromate in food, the detection reagent comprises a detection reagent A and a detection reagent B, the detection reagent A is 0.5-1.0 mol / L inorganic acid, and the detection reagent B is 1.8-2.3 mol / L potassium iodide solution. When the pH value of the reagent is 1-3, the reagent is short in developing time, stable in color and high in detection rate, and does not need to be kept away from light in the developing process. And the rapid detection requirement can be met. The kit for rapidly detecting potassium bromate comprises the detection reagent A, the detection reagent B, a centrifugal tube, a colorimetric card plate, a transfer pipette and the like. When detection is needed, a to-be-detected sample is firstly treated, the detection reagent A and the detection reagent B are added into the treated sample, the mixture is mixed and left to stand, then color comparison is carried out on the color gradation on the colorimetric card plate, and whether the to-be-detected sample contains potassium bromate or not is obtained according to the comparison result. Through a comparison test, the detection limit of the detection kit disclosed by the invention is 5mg / kg.

Description

technical field [0001] The invention relates to the technical field of food detection, in particular to a detection reagent and a kit for rapidly detecting potassium bromate. Background technique [0002] Potassium bromate is an inorganic salt, which is a colorless crystal at room temperature. It is mainly used as analytical reagent, oxidizing agent, wool bleaching agent, food additive (now banned in China), etc. Potassium bromate has long been used in the baking industry because of its oxidative properties, which can bleach flour, inhibit the activity of proteolytic enzymes, improve the strength and elasticity of gluten, and is low in cost. However, excessive consumption of potassium bromate can damage people's central nervous system, blood and kidneys. The International Agency for Research on Cancer has also listed the compound as a carcinogen. my country also explicitly prohibits potassium bromate as a flour treatment agent in wheat flour However, there are still flour pr...

Claims

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Application Information

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IPC IPC(8): G01N21/78G01N33/10
CPCG01N21/78G01N33/10G01N2021/775
Inventor 罗杏燕范彬王军杨鹏博
Owner GUANGZHOU ANNUO FOOD SCI & TECH CO LTD
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