FITRIA, D. A.; DAULAY, A. S.; RIDWANTO, R.; NASUTION, H. M. Determination of Catechin Content and Antioxidant Activity of Brewed and Ethanolic Extracts of Cacao Beans (Theobroma cacao L.) Using Uv-Vis Spectrophotometry. Journal of Pharmaceutical and Sciences, [S. l.], v. 9, n. 3, p. 2349–2361, 2026. DOI: 10.36490/journal-jps.com.v9i3.1763. Disponível em: https://journal-jps.com/new/index.php/jps/article/view/1763. Acesso em: 2 aug. 2026.