Determination of Catechin Content and Antioxidant Activity of Brewed and Ethanolic Extracts of Cacao Beans (Theobroma cacao L.) Using Uv-Vis Spectrophotometry. JPS [Internet]. 2026 Jul. 31 [cited 2026 Oct. 28];9(3):2349-61. Available from: https://journal-jps.com/new/index.php/jps/article/view/1763