Method for testing poultry egg freshness based on photon radiation

A technology of photon radiation and freshness, which is applied in the field of detecting the freshness of poultry eggs based on photon radiation, evaluating and detecting the freshness of poultry eggs, and can solve the problems of inaccurate qualitative analysis and detection, long measurement period, etc.

Inactive Publication Date: 2011-08-31
XIAN UNIV OF TECH
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for detecting the freshness of poultry eggs based on photon radiation, which solves the problems th

Method used

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  • Method for testing poultry egg freshness based on photon radiation
  • Method for testing poultry egg freshness based on photon radiation
  • Method for testing poultry egg freshness based on photon radiation

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Embodiment

[0076] Take some eggs with clean and smooth body surface, wash off the surface dirt with distilled water, then disinfect with 5% potassium permanganate solution, wash and dry. Stored in a sterile incubator at 40°C, the photon radiation, Hough unit and yolk index of the eggs were measured regularly every day.

[0077] Spontaneous photon radiation I SL The BPCL-4 weak luminescence measuring instrument (developed by the Institute of Biophysics, Chinese Academy of Sciences) was used for the measurement. Before the measurement, it was darkened for 5 minutes and placed in the sample chamber of the instrument to measure the spontaneous photon radiation. The photon radiation intensity was expressed by the number of photons per unit time (counts / s).

[0078] The measurement of delayed luminescence is to use a high-pressure mercury lamp with a light intensity of 7000lx to illuminate the eggs for 10 seconds in a closed space, and then immediately put them into the sample chamber of a B...

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Abstract

The invention discloses a method for testing poultry egg freshness based on photon radiation. The method comprises the steps of washing a to-be-tested poultry egg with distilled water until the egg is clear, sterilizing the egg surface, letting the egg stand in dark for 1 to 10 minutes and then testing spontaneous photon radiation ISL of the egg by a testing system based on single photon detection; exposing the egg in extraneous intensive exciting light for a certain time and testing delayed luminescence of the egg within a certain time T after being excited by light by the testing system based on single photon detection, and obtaining delayed luminescence integrated intensity I(T) in the time T through a mathematical fitting; defining a condition parameter Q and a freshness value K of the egg and evaluating the freshness of the egg according to the magnitude of the egg freshness value K in a range of zero to one. The evaluation criterion of the method is that the more the K value of the egg approximates zero, the fresher the egg is; the more the K value of the egg approximates one, the less fresh the egg is. The method in the invention has the characteristics of quickness, accuracy and no loss. Moreover, the reliability and operability of the method are proved in experiments.

Description

technical field [0001] The invention belongs to the technical field of biological detection and relates to a method for evaluating and detecting the freshness of poultry eggs, in particular to a method for detecting the freshness of poultry eggs based on photon radiation. Background technique [0002] Poultry eggs have high nutritional value and are one of the main foods for human beings. At present, poultry and egg consumption in the domestic and foreign markets is dominated by fresh eggs, accounting for more than 90% of the total egg consumption. As poultry eggs are living organisms, they are susceptible to quality deterioration due to the influence of internal and external environmental factors. Therefore, the freshness of poultry eggs must be tested and graded in the storage, transportation, processing and sales of poultry eggs. The indicators used to measure the freshness of poultry eggs in the world include biological indicators such as Hough unit, air cell height, yo...

Claims

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Application Information

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IPC IPC(8): G01N21/84G01N21/63G01J1/10
Inventor 习岗刘锴徐永奎胡海龙
Owner XIAN UNIV OF TECH
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