Arum Tri Handayani, Anna Fitriawati, Annie Rahmatillah. Optimization of Broccoli (Brassica oleracea var. italica Plenck) and Carrot (Daucus carota L.) Extract Combination Concentration Using Control Composite Design on Antioxidant Activity and Total Phenolic Content. IJHET [Internet]. 2025 Nov. 22 [cited 2026 May 29];4(4). Available from: https://afdifaljournal.com/journal/index.php/ijhet/article/view/403