RESUMO: Utilizando a técnica de hidrodestilação, usando um adaptador Clevenger, foram extraídos óleos essenciais das espécies Pimenta dioica (folhas e frutos) e Syzygium aromaticum (botões florais, talos e folhas). A composição química dos óleos foi determinada através da analise CG-EM. Os teores de óleos essenciais variaram de 0,97 a 1,41% e 2,30 a 15,40% nas espécies Pimenta dioica e Syzygium aromaticum, respectivamente. O componente majoritário presente nessas espécies foi o eugenol, variando de 72,87 a 90,41%. Syzygium aromaticum forneceu maior teor de óleo essencial rico em eugenol. Em quantidades menores foram também encontrados chavicol e β-cariofileno.Unitermos: Syzygium aromaticum, Pimenta dioica, Myrtaceae, eugenol, Brasil, óleo essencial.ABSTRACT: "Volatile chemical constituents of rich spices in eugenol". Essential oils were extracted from the leaves and fruits of Pimenta dioica and leaves, stalks and floral buttons from Syziguim aromaticum by hydrodistillation using a Clevenger apparatus. The essential oil compositions were determined by CG-MS analyses. The yield varied from 0.97 to 1.41% and from 2.30 to 15.40% in the P. dioica and S. aromaticum, respectively. In both species the major component was the eugenol, varied from 72.87 to 90.41%, being richer the essential oil extracted from S. aromaticum. Chavicol and β-caryophyllene were identified in low percentage.
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