Study of the Applicability of pH Mediators in Bioplastic Formulations for Use in Food Packaging

This work proposes the manufacture of bioplastics for food packaging using starch, carboxymethylcellulose, and green coconut waste (Cocos nucifera), with the addition of acid-base mediators to indicate the pH of the food. The method was based on experimental research, in which films were produced using the casting technique and incorporated mediators at a concentration of 1% (v/v). The results showed a high percentage of solubility, with an average of 95.09%, and low moisture content on a dry basis, with an average of 0.95%, and presented visually noticeable colorimetric changes in the pH ranges from 2 to 9. The research highlights the importance of using biodegradable materials and valorizing waste, which aligns with circular economy and sustainability practices.