Optimization of Ethanol-Water Solvent System for Total Flavonoid Extraction from Okara. Indonesian Journal of Chemical Science, [S. l.], v. 15, n. 2, p. 9–22, 2026. DOI: 10.15294/ijcs.v15i2.46170. Disponível em: https://journal.unnes.ac.id/journals/ijcs/article/view/46170. Acesso em: 7 sep. 2026.