Development of time-pH indicator nanofibers from natural pigments: An emerging processing technology to monitor the quality of foods

Colorimetric indicators produced from nanofibers have a high contact surface area, allowing better interaction of the indicator with the external environment. In this context, this study aimed to develop time-pH indicator nanofibers with natural pigments for use as an emerging technology in the control of food quality. The polymeric solutions were prepared with 13% (w v−1) polycaprolactone (PCL) and 6% (w v−1) poly (ethylene oxide) (PEO). The...