Smart polymeric label for freshness monitoring of fish packaging

Intelligent packaging, in addition to acting as a food protection barrier, can emit a signal (electric, colorimetric, among others) in real time in response to any change in the initial packaging conditions and food quality. In this work, the self-colored polymer was designed based on a fluorescent functionalized ۱,۸-naphthalimide dye. Sensitive dye is capable to change its emission during spoilage of food like fish, beef meat and chicken. Safe smart packaging with no dye migration was obtained via polymerizable characterization of sensitive dye with methyl methacrylate (MMA). The polymerization process has been investigated via light curing process. A yellow-green, fluorescent polymeric film was obtained. Prepared Fluorescence polymeric film shows a remarkable emission shift by amine exposure and could be applied as a new tool for smart polymer applications.

کلیدواژه ها:

Fluorescence ، Polar sensitive ، Smart lable ، Food freshness