Effect of hydrothermal treatment on physicochemical of arenga starch Rahmayuni, Raswen Efendi, Yelmira Zalfiatri, Najla Rizqa Dwianda and Ilham Kurniawan BIO Web Conf., 99 (2024) 02010 Published online: 01 April 2024 DOI: 10.1051/bioconf/20249902010