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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  • Abstract
  • Description
  • Claims
  • Application Information

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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 hig

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

Example Embodiment

[0043]Example 1

[0044]Take 1g flour in 15 ml of centrifuge tube, 5 ml of deionized water, and then oscillate for 5 minutes, take 0.5 mL of the supernatant to 2 ml of centrifugal tube, add 1 drop of 0.8 mol / L hydrochloride and potassium iodide. 2 drops of solution. After oscillating mixed back, it was placed for 1 minute after 1 minute, and the standard color card I was compared to the potassium bromate.

Example Embodiment

[0045]Example 2

[0046]Take 1g flour in 15 ml of centrifuge tube, 5 ml of deionized water, and then oscillated for 5 minutes, take 0.5 ml of supernatant to 2 ml of centrifugal tube, add 1 drop of 0.3 mol / L. Potassium iodide. 2 drops of solution. After oscillating mixed back, it was placed for 1 minute after 1 minute, and the standard color card I was compared to the potassium bromate.

Example Embodiment

[0047]Example 3

[0048]Take 1g flour in 15 ml of centrifuge tube, 5 ml of deionized water, oscillating for 5 minutes, take 0.5 mL of the supernatant to 2 ml of centrifuge tube, 1 drop of 1.8 mol / L / L of potassium iodide 2 drops of solution. After oscillating mixed back, it was placed for 1 minute after 1 minute, and the standard color card I was compared to the potassium bromate.

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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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