Rahmadhia, Safinta Nurindra, Yanas Anggana Saputra, Titisari Juwitaningtyas, and Wahidah Mahanani Rahayu. 2022. “Intelligent Packaging As a PH-Indicator Based on Cassava Starch With Addition of Purple Sweet Potato Extract (Ipomoea Batatas L.)”. Journal of Functional Food and Nutraceutical 4 (1). https://doi.org/10.33555/jffn.v4i1.90.