Bird egg freshness detection device and method by utilizing volatile matter

Abstract

The invention discloses a device for detecting cracks on a poultry egg shell by using a volatile matter and a method thereof. The detection device mainly comprises a computer, an activated carbon filter, a first built-in pump, a gas tank, an air valve, a material container, a switch, a gas sensor array, a second built-in pump, a data acquisition unit and an A / D converter. The data acquisition unit acquires response signals of the gas sensor array; then the signals are transmitted to the computer after being conditioned and converted through the A / D converter so as to extract a representative characteristic value in a curve of each sensor; and by taking the extracted characteristic value as a parameter and the freshness index of poultry eggs as a goal, a quadratic regression model is established to analyze the correlativity between the freshness index of the poultry eggs and a response characteristic value of each sensor. The method excludes the interference caused by subjective factors of manual operation and overcomes the shortcoming of destructive detections, thereby achieving non-destructive detection on fine cracks on the poultry eggs nondestructively and accurately.

Description

technical field [0001] The invention relates to poultry egg freshness detection technology, in particular to a poultry egg freshness detection device and method using volatile matter. Background technique [0002] At present, as long as poultry eggs are not of inferior quality in general trade in my country, they are put on the market without grading, which is actually unreasonable. During the storage process, the internal quality or freshness of poultry eggs will change greatly, and this change will directly affect its commodity value and eating quality. [0003] For a small number of rural chicken farmers, whether there is a peculiar smell is often used to roughly identify whether the eggs are inferior eggs; at present, there is no acceptable internal quality or freshness detection method for mass production . [0004] In recent years, several methods for non-destructive testing of poultry egg quality have been reported. Mainly include the following: [0005] 1. Acoust...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that it is difficult to achieve non-destructive testing (actually destructive testing)

[0008] However, there is no report on detecting the freshness of poultry eggs through the correlation between poultry egg volatiles and internal quality

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