Table 5 Heatmap analysis of TPC and antioxidant capacity for the 15 bark extracts of medicinal plants from Bangladesh

Species TPC ABTS DPPH FRAP

   Albizia odoratissima (L. f.) Benth       High
   Araucaria columnaris (J.R. Forst.) Hook Antioxidant ability
   Bruguiera sexangula (Lour.) Poir
   Dipterocarpus turbinatus Gaertn
   Engelhardia spicata Lesch. ex Blume
   Haldina cordifolia (Roxb.) Ridsdale
   Saraca declinata Miq
   Saraca thaipingensis Cantley ex King
   Shorea robusta Gaertn
   Sonneratia apetala Buch.-Ham
   Talipariti tiliaceum (L.) Fryxell
   Vitex peduncularis Wall. ex Schauer in A. DC
   Wrightia arborea (Dennst.) Mabb
   Xylocarpus moluccensis (Lam.) M. Roem
   Zanthoxylum spinosum (L.) Sw Low