ABSTRACT
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 -elemene (24.6%) and - caryophyllene (16.7%). The major compounds identified in the oil of P. crassinervium were - caryophyllene (17.7%), -elemene (14.4%) and b-elemene (10.9%).
Os óleos essenciais das folhas e galhos finos de Piper reticulatum e de P. crassinervium, coletados na região norte do Brasil, foram obtidos por arraste à vapor e analisados através de GC/MS. O óleo de P. reticulatum é constituido principalmente por -elemeno (24,6%) e -cariofileno (16,7%). Os principais compostos identificados no óleo de P. crassinervium foram-cariofileno (17,7%), -elemeno (14,4%) e -elemeno (10,9%).