Fish freshness detection test paper

A technology for detecting test paper and freshness, which is applied in the direction of analyzing materials through chemical reactions and observing the influence of chemical indicators on materials, etc. It can solve the problems of lack of simple, effective and rapid evaluation scientific methods, etc., and reach the price The effect of low cost, simple preparation process and simple application method

Inactive Publication Date: 2015-01-21
SHANDONG INST OF COMMERCE & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When consumers buy chilled, refrigerated, and frozen fish, they lack simple, effective, and quick scientific means to evaluate their freshness except relying on their own sensory evaluati

Method used

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  • Fish freshness detection test paper
  • Fish freshness detection test paper
  • Fish freshness detection test paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Weigh 0.5g bromophenol red, 0.6g bromocresol purple, 0.3g bromothymol blue, 0.3g neutral red, 0.2g phenol red and mix them, then add a small amount of ethanol-water solution with a volume ratio of 1:5 , heated and stirred until completely dissolved, then diluted to 1L with ethanol-water solution with a volume ratio of 1:5.

[0024] The invention is applied to the detection of the freshness of the cold fresh crucian carp. The mucus on the surface of the crucian carp is dipped with a test paper, and after developing the color, the freshness can be known by comparing it with a standard color comparison card.

[0025] Example 2

Embodiment 2

[0027] Weigh 0.7g bromophenol red, 0.8g bromocresol purple, 0.4g bromothymol blue, 0.5g neutral red, 0.4g phenol red and mix, then add a small amount of ethanol-water solution with a volume ratio of 1:4 , heated and stirred until completely dissolved, then diluted to 1L with ethanol-water solution with a volume ratio of 1:4.

[0028] The invention is applied to the detection of the freshness of the cold fresh carp. The mucus on the surface of the crucian carp is dipped with a test paper, and the freshness can be known by comparing it with a standard color card after developing the color.

[0029] Example 3

Embodiment 3

[0031] Weigh 1g of bromophenol red, 1.1g of bromocresol violet, 0.5g of bromothymol blue, 0.8g of neutral red, and 0.6g of phenol red and mix them, then add a small amount of ethanol-water solution with a volume ratio of 1:3, Heat and stir until completely dissolved, then dilute to 1L with ethanol-water solution at a volume ratio of 1:3.

[0032] The invention is applied to the detection of the freshness of the cold fresh turbot. The mucus on the surface of the crucian carp is dipped with a test paper, and the freshness can be known by comparing it with a standard color comparison card after developing the color.

[0033] Finally, it should also be noted that what is listed above are only specific embodiments of the present invention. Apparently, the present invention is not limited to the above examples, and many variations are possible. All deformations that can be directly derived or associated by those skilled in the art from the content disclosed in the present invention...

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Abstract

The invention relates to the technical field of fish detection, and particularly relates to fish freshness detection test paper. Each liter of an indicator solution in a reagent layer contains 0.5-1g of bromophenol red, 0.6-1.1g of bromcresol purple, 0.3-0.5g of bromothymol blue, 0.3-0.8g of neutral red, 0.2-0.6g of phenol red and the balance of a solvent. The fish freshness is detected rapidly with low cost and high flexibility. The detection test paper can be used for detecting the freshness of chilled, refrigerated and frozen fish. The using method is simple; and only less amount of fish body surface mucus is dipped when the test paper is used, and the fish freshness can be obtained by comparing the color instantly developed by the test paper with a standard color chart.

Description

technical field [0001] The invention relates to the technical field of fish detection, in particular to a fish freshness detection test paper. Background technique [0002] In recent years, frequent food safety incidents have seriously damaged the lives and health of consumers, and have become a social issue that has attracted widespread attention. Many food safety incidents are related to the consumption of spoiled food, ensuring the freshness of the food being eaten is like establishing the first barrier to ensure food safety. When consumers buy chilled, refrigerated, and frozen fish, they lack simple, effective, and quick scientific means to evaluate their freshness except relying on their own sensory evaluation and experience. The development of fish freshness test strips can help consumers judge fish. It is of great significance to provide a scientific basis for judging the freshness of food. Contents of the invention [0003] The object of the present invention is...

Claims

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Application Information

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IPC IPC(8): G01N21/78
Inventor 韩道财张长峰黄宝生聂小宝王国利
Owner SHANDONG INST OF COMMERCE & TECH
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