Intelligent indicator films based on cold plasma-modified chitosan loaded with curcumin-resveratrol nanoemulsions: pH-responsive mechanism, colorimetric performance and application for tilapia freshness monitoring
Food safety risks associated with spoilage and plastic packaging have driven the development of sustainable intelligent packaging systems. In this study, zein-curcumin-resveratrol‑sodium alginate nanoemulsions were incorporated into chitosan films to construct pH-responsive active indicator films. Cold plasma (CP) modi...