Review Article

Discrimination of Free-Range and Caged Eggs by Chemometrics Analysis of the Elemental Profiles of Eggshell

Figure 1

(a) Principal component 1 (PC1) and principal component 2 (PC2) score plot in free-range and caged eggshells. (b) PC1 loadings of the elemental profiles of free-range and caged eggshells.
(a)
(b)