Pullet egg as a general nourishment

rapid and accurate detection of its sales levels and storage life is important for consumers and producers. Egg white is detected by square wave voltammetry electronic tongue

at the same time

Haugh unit is tested by egg tester to establish correspondence with storage period and different levels of raw eggs. It is feasible to select the first peak current

the second peak current and the second minimum current as characteristic value. Then principal component analysis（ PCA） and discriminant function analysis（ DFA） are used to process the experimental data. The DFA is better than PCA in detection of egg sales levels and storage life.