AIP Conference Proceedings 2120, 050016 (2019); https://doi.org/10.1063/1.5115692 2120, 050016 © 2019 Author(s). The effect of ZnO addition against crystallinity and water absorption capacity of biofoam based cassava starch reinforced bacterial cellulose Cite as: AIP Conference Proceedings 2120, 050016 (2019); https://doi.org/10.1063/1.5115692 Published Online: 03 July 2019 Moh. Astono Basuki, Heru Suryanto, Aisyah Larasati, Poppy Puspitasari, and Mujiono