Essential oils from leaves and thin branches of Piper reticulatum and P. crassinervium collected in the north region of Brazil, were obtained by steam distillation and analyzed by GC/MS. The oil of P. reticulatum was dominated by β-elemene (24.6%) and β- caryophyllene (16.7%). The major compounds identified in the oil of P. crassinervium were β- caryophyllene (17.7%), γ-elemene (14.4%) and b-elemene (10.9%).
Piper reticulatum; Piper crassinervium; Piperaceae; β-caryophyllene; γ-elemene; β-elemene