Feifan Ma

Naked-eye monitoring of pasteurized milk freshness via highly stable, pH-responsive resazurin/cationic guar gum/κ-carrageenan intelligent labels

Progressive acidification during pasteurized milk spoilage provides a chemical signal for visual freshness assessment. Here, we developed a pH-responsive colorimetric label by confining resazurin (Res) within a cationic guar gum/κ-carrageenan (CGG–CAR) polyelectrolyte network. No...