Spectroscopic analysis demonstrates rapid discrimination of bacterial pathogens on eggshells, highlighting a viable non-destructive screening approach for food safety.
Eggshell surfaces are highly susceptible to Escherichia coli and Salmonella enteritidis, demanding rapid, non-destructive detection. This study evaluated hyperspectral imaging (HSI) for pathogen discrimination. Visible-near-infrared (Vis-NIR) and short-wave infrared systems acquired data from eggs contaminated at 103–105 CFU/mL. Raw Vis-NIR spectra with competitive adaptive reweighted sampling provided optimal features. The pathogens showed opposite reflectance trends, attributed to biofilm structural differences affecting light scattering and absorption. Classification models achieved up to 91.11% accuracy in pathogen identification and 88.89% accuracy in differentiating E. coli levels. Vis-NIR-HSI shows great potential for rapid, non-destructive eggshell pathogen detection, with a clarified mechanistic framework.
No takes yet. Share an insight, caveat, or question.
Liu et al. (2026) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: