The chemical structures of polyphenolic compounds: a) caffeic acid, b) p-coumaric acid, c) quercetin, d) ellagic acid, and e) ferulic acid; and the compounds: f) capsaicin, and g) orlistat. Elements (C, H and O) of caffeic acid, p-coumaric acid, quercetin and capsaicin for the molecular docking analysis are indicated