Colorimetric sensor based on a poly(ortho-phenylenediamine-co-aniline) copolymer for the monitoring of tilapia (Orechromis niloticus) freshness

[Display omitted] •The copolymer changes color by effect of the presence of amine vapors due to deprotonation.•The colorimetric sensor is used to detect the freshness of tilapia in real time.•After 48 h of storage under refrigeration at 10 °C the fillets are no longer fit for human consumption. For...

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Veröffentlicht in:	Sensors and actuators. B, Chemical Chemical, 2018-04, Vol.259, p.170-176
Hauptverfasser:	Domínguez-Aragón, Angélica, Olmedo-Martínez, Jorge A., Zaragoza-Contreras, E. Armando
Format:	Artikel
Sprache:	eng
Schlagworte:	Amines Ammonia Aniline Color Colorimetric sensor Colorimetry Conducting polymer Copolymers Fillets Fish Fish freshness Food quality Freshness Microorganisms Monitoring Optical measuring instruments Phenylenediamine Refrigeration Sensors Spoilage Tilapia Trimethylamine Volatile amines
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