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Color developing agent composition and application thereof as well as method for detecting nitritein sample

A technology of composition and color developing agent, which is applied in the direction of material analysis, measuring device, instrument, etc. by observing the influence on chemical indicator, can solve the problems of high detection cost, long time consumption, low efficiency, etc., and achieve sensitive detection. Effect

Inactive Publication Date: 2016-06-08
INNER MONGOLIA MENGNIU DAIRY IND (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in actual detection, this method takes a long time, high detection cost, and low efficiency. For large-scale product manufacturers on the assembly line to determine nitrite, this method is very impractical. It is necessary to choose a simple, fast and efficient method for the determination of nitrite. The salt method replaces

Method used

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  • Color developing agent composition and application thereof as well as method for detecting nitritein sample
  • Color developing agent composition and application thereof as well as method for detecting nitritein sample
  • Color developing agent composition and application thereof as well as method for detecting nitritein sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Implementation example 1: detect the nitrite content in the jujube yogurt sample

[0020] In the present embodiment, the content of nitrite in the jujube yogurt sample is detected, and the detection results are shown in Table 1:

[0021] Table 1

[0022] sample name

[0023] As can be seen from the detection results of the nitrite content in the jujube yoghurt sample, the pink gradually deepens with the increase of the nitrite content in the sample.

Embodiment 2

[0024] Implementation example 2: detection of nitrite content in plain yoghurt samples

[0025] In this embodiment, the content of nitrite in the plain yoghurt sample is detected, and the detection results are shown in Table 2:

[0026] Table 2

[0027]

[0028]

[0029] As can be seen from the detection results of the nitrite content in the plain yoghurt sample, the pink color gradually deepens with the increase of the nitrite content in the sample.

Embodiment 3

[0030] Embodiment 3: detect the content of nitrite in the yoghurt of double strain bacillus

[0031] In this embodiment, the content of nitrite in the yoghurt sample of Bistrain bacillus is detected, and the detection results are shown in Table 3:

[0032] table 3

[0033] sample name

[0034] As can be seen from the detection results of the content of nitrite in the yoghurt samples containing Bacillus bistratum, the pink gradually deepens with the increase of the content of nitrite in the samples.

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Abstract

The invention provides a color developing agent composition and application thereof as well as a method for detecting nitrite in a sample. By using the color developing agent composition or the detecting method provided by the invention, quick analysis of the nitrite in the sample, in particular of milk or a milk product can be realized by comparing the color change of the sample to be detected; the method is simple and convenient in operation, and is suitable for quickly measuring or monitoring the content of the nitrite in products during assembly line production.

Description

technical field [0001] The invention relates to the field of food, in particular, the invention relates to a color developing agent composition and its application and a method for detecting nitrous acid in a sample. Background technique [0002] The usual method for determining nitrite in milk or dairy products is: add a precipitant to the sample to remove fat and protein, add three kinds of chromogenic agents to the clarified liquid and measure the absorbance value at a certain wavelength, and calculate the nitrite in the sample according to the absorbance value. nitrite content. [0003] However, in actual detection, this method takes a long time, high detection cost, and low efficiency. For large-scale product manufacturers on the assembly line to determine nitrite, this method is very impractical. It is necessary to choose a simple, fast and efficient method for the determination of nitrite. The salt method replaces it. Contents of the invention [0004] The present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
CPCG01N21/78G01N2021/775
Inventor 胡彩霞李红王佳马文丽宋晓东
Owner INNER MONGOLIA MENGNIU DAIRY IND (GRP) CO LTD
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