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Chromatogram of Farang (P. guajava L.) leaves at λ = 272 nm, flow rate 0.9 mL/min, for 65 min. (A) methanolic extract (20× dilution); (B) hexanoic extract (20× dilution). Peak 1: ascorbic acid; 2: gallic acid; 3: catechin; 4: caffeic acid; 5: syringic acid; 6: rutin; 7: p-coumaric acid; 8: sinapic acid; 9: ferulic acid; 10: myricetin; 11: quercetin; 12: apigenin; 13: kaempferol; 14: eugenol.
