Optimization and characterization of edible film made from glucomannan porang (Amorphophallus oncophyllus) and plasticizer sorbitolArif Ramadhan, Deborah Patricia Lizar, Sri Rahayoe and Lucia Dhiantika WitasariBIO Web Conf., 167 (2025) 04003DOI: https://doi.org/10.1051/bioconf/202516704003