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1999•Journal of Essential Oil ResearchRequires access

Volatile Constituents of Brazilian Piperaceae, Part 5. The Oils ofPothomorphe umbellateandP. peltate

Arnaldo Iran R. Luz, João Domingos da Silva, M.G.B. Zoghbi, Eloísa Helena de Aguiar Andrade, M. H.L da Silva, José Guilherme S. Maia

Open publisher page 10 citations

Abstract

The essential oils obtained from leaves and thin branches of Pothomorphe umbellata (L.) Miq. and Pothomorphepeltata (L.) Miq. were investigated by GC/MS. The principal constituents identified in the oil of P. umbellata were β-caryophyllene (14.8%), germacrene D (27.4%), bicyclogermacrene (11.5%) and δ-cadinene (13.3%), comprising to 67% of the oil. The major components identified in the oil of P. peltata were β-caryophyllene (39.0%), α-humulene (6.4%), germacrene D (8.7%), (E)-nerolidol (11.7%) and caryophyllene oxide (7.2%), corresponding to 73% of the oil. Except for octadecanol found in the oil of P. peltata, all other (39) compounds identified in both species were sesquiterpenes.

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What this paper is about

The essential oils obtained from leaves and thin branches of Pothomorphe umbellata (L.) Miq. and Pothomorphepeltata (L.) Miq. were investigated by GC/MS. The principal constituents identified in the oil of P. umbellata were β-caryophyllene (14.8%), germacrene D (27.4%), bicyclogermacrene (11.5%) and δ-cadinene (13.3%), comprising to 67% of the oil. The major components identified in the oil of P. peltata were β-caryophyllene (39.0%), α-humulene (6.4%), germacrene D (8.7%), (E)-nerolidol (11.7%) and caryophyllene oxide (7.2%), corresponding to 73% of the oil. Except for octadecanol found in the oil of P. peltata, all other (39) compounds identified in both species were sesquiterpenes.

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Available abstract

The essential oils obtained from leaves and thin branches of Pothomorphe umbellata (L.) Miq. and Pothomorphepeltata (L.) Miq. were investigated by GC/MS. The principal constituents identified in the oil of P. umbellata were β-caryophyllene (14.8%), germacrene D (27.4%), bicyclogermacrene (11.5%) and δ-cadinene (13.3%), comprising to 67% of the oil. The major components identified in the oil of P. peltata were β-caryophyllene (39.0%), α-humulene (6.4%), germacrene D (8.7%), (E)-nerolidol (11.7%) and caryophyllene oxide (7.2%), corresponding to 73% of the oil. Except for octadecanol found in the oil of P. peltata, all other (39) compounds identified in both species were sesquiterpenes.

Key concepts: Germacrene D, Nerolidol, Botany, Essential oil, Germacrene, Piperaceae, Humulene, Chemistry

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