Making method of color-changing test paper for detecting water-holding capacity of beef and detection method

A production method and detection method technology, which is applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by making materials undergo chemical reactions, can solve the problems of long processing time and complicated operation, and achieve simple detection methods , easy to operate and save testing time

Inactive Publication Date: 2017-01-04
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the technical problems of complex operation, long processing time, and inability to perform online detection of beef-based hydraulics well in the prior art, and provides a color-changing test paper that can realize economical and rapid detection of beef-based hydraulics

Method used

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  • Making method of color-changing test paper for detecting water-holding capacity of beef and detection method
  • Making method of color-changing test paper for detecting water-holding capacity of beef and detection method
  • Making method of color-changing test paper for detecting water-holding capacity of beef and detection method

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Effect test

Embodiment 1

[0066]Embodiment 1: the preparation method of the discoloration test paper for detecting the hydraulic power of beef

[0067] Step 1: Prepare cobalt chloride solution, weigh 2g of cobalt chloride reagent and dissolve it in 20ml of deionized water, stir with a glass rod to make it evenly mixed;

[0068] Step 2: dipping the test paper, immersing the prepared test paper in the prepared cobalt chloride solution for 12 minutes;

[0069] Step 3: Dry the test paper, after reaching the dipping time, take the test paper out of the cobalt chloride solution with tweezers, use absorbent paper to dry up the reagents that are not adsorbed on the surface of the test paper, put it in a petri dish, and put it in a drying box for 15 minutes (setting The temperature of the drying oven is 65°C), and the color-changing test paper is obtained;

[0070] Step 4: Package the discoloration test paper, put the dried discoloration test paper together with the desiccant in an aluminum foil bag and seal i...

Embodiment 2

[0071] Embodiment 2: the preparation method of the discoloration test paper for detecting beef-based hydraulic

[0072] Step 1: Prepare a cobalt chloride solution, weigh 3g of cobalt chloride reagent and dissolve it in 20ml of deionized water, stir with a glass rod to make it evenly mixed;

[0073] Step 2: dipping the test paper, immersing the prepared test paper in the prepared cobalt chloride solution for 18 minutes;

[0074] Step 3: Dry the test paper, after reaching the immersion time, take the test paper out of the cobalt chloride solution with tweezers, use absorbent paper to dry up the reagents that are not adsorbed on the surface of the test paper, put it in a petri dish, and put it in a drying box for 20 minutes (setting The temperature of the drying oven is 75°C), that is, the color-changing test paper is obtained;

[0075] Step 4: Package the discoloration test paper, put the dried discoloration test paper together with the desiccant in an aluminum foil bag and sea...

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Abstract

The invention belongs to the technical field of quality detection of meat samples and relates to a making method of color-changing test paper for detecting water-holding capacity of beef and a detection method to solve the technical problems that the operation is complicated, the treatment time is long and the water-holding capacity of beef cannot be well detected online in the prior art. The making method comprises steps as follows: 1, 2-3 g of a cobalt chloride reagent is weighed and dissolved in 20 ml of deionized water; 2, the prepared test paper is soaked in a prepared cobalt chloride solution for 12-18 min; 3, the reagent which is not adsorbed on the surface of the test paper is sucked dry by absorbent paper, and the test paper is put in a culture dish and dried in a drying oven for 15-20 min. The detection method comprises steps as follows: 1, the beef sample is sliced in the direction perpendicular to muscle fiber; 2, the color-changing test paper is attached to the surface of the beef sample; 3, a dried glass slide is placed on the color-changing test paper and slightly pressed; 4, the color changing condition of the test paper is observed via the glass slide; 5, the water-holding capacity of the beef is judged by the aid of a regression equation according to the color changing time of the test paper.

Description

technical field [0001] The invention belongs to the technical field of meat sample quality detection, and in particular relates to a preparation method and a detection method of a discoloration test paper for detecting the hydraulic power of beef. Background technique [0002] Beef, as a meat product rich in protein, low fat, cellulose and minerals, enjoys the reputation of "the proudest of meat" and is deeply loved by consumers. In my country, with the improvement of people's living standards, the consumption of beef continues to grow. At the same time, with people's increasing attention to health, consumers have higher and higher requirements for beef quality. The quality of beef includes many aspects, such as meat color, tenderness, marbling, flavor, taste quality and so on. Among them, the hydraulic quality of beef is also an important aspect of beef quality testing. The level of hydraulic power is directly related to the texture, tenderness, sliceability, elasticity, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
CPCG01N21/78
Inventor 王笑丹才英明韩云秀王洪美金佳慧徐丽萍朱灵涛
Owner JILIN UNIV
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