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Linalool and methyl chavicol present basil (Ocimum sp.) cultivated in Brazil Linalol e metil-chavicol presentes em manjeric o (Ocimum sp.) cultivados no Brasil

Keywords: folhas secas , folhas frescas , Lamiaceae , análise CG , dry leaves , fresh leaves , Lamiaceae , CG analysis

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Abstract:

In Brazil, Ocimum species are commonly known as aromatic and restorative herbs. The present research aimed to study the chemical composition of the essential oils of fresh and dry basil (Ocimum sp) leaves obtained by hydrodistillation and analyzed by GC-FID and GC-MS. The obtained yield was 0.70% for dry leaves and 0.26% for fresh leaves. The major compounds were: linalool (29.50-32.26%) and methyl chavicol (36.81-41.62%). Eucalyptol could also be detected (9.99-7.68%). The oil from dry leaves presented a more complex chemical composition. This study serves to contribute to the knowledge of medicinal plants occurring in Brazil. No Brasil, as espécies de Ocimum s o conhecidas como ervas aromáticas e restaurativas. Nesse trabalho foi estudado a composi o química dos óleos essenciais das folhas frescas e secas de manjeric o (Ocimum sp) obtido por hidrodestila o e analisados por CG-FID e CG-EM. Os teores encontrados foram de 0,70% para as folhas secas e 0,26% para as folhas frescas. Os componentes majoritários foram: Linalol (29,50-32,26%) e metil-chavicol (36,81-41,62%). Eucaliptol também foi detectado (9,99-7,68%). O óleo das folhas secas apresentou composi o química mais complexa. Esse trabalho contribui para o conhecimento das plantas medicinais de ocorrência no Brasil.

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