Antioxidant Activity of Roselle Flower Extract (Hibiscus sabdariffa L.) at Different Storage Durations Using the DPPH Method. Medika: Jurnal Ilmiah Kesehatan, [S. l.], v. 6, n. 2, p. 190–197, 2026. DOI: 10.69503/medika.v6i2.1715. Disponível em: https://ejournal.ununtb.ac.id/index.php/medika/article/view/1715. Acesso em: 9 nov. 2026.