A developed colorimetric pH sensor film based on edible materials for real-time monitoring of food freshness is described. The mixed natural dyes from edible plants Clitoria sp and Brassica sp were extracted and incorporated into ι-carrageenan film as a colorimetric pH sensor film for monitoring food spoilage and its freshness. The color changes of the developed colorimetric sens... https://www.diegojavierfares.com/special-offer-Rothbury-Chrome-two-handle-low-arc-bathroom-faucet-p13193-best-find/