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Chemical Composition and Antioxidant Activity of Essential Oils from Cinnamodendron dinisii Schwacke and Siparuna guianensis Aublet

Author(s): Milene Aparecida Andrade | Maria das Graças Cardoso | Juliana de Andrade | Lucilene Fernandes Silva | Maria Luisa Teixeira | Juliana Maria Valério Resende | Ana Cristina da Silva Figueiredo | José Gonçalves Barroso

Journal: Antioxidants
ISSN 2076-3921

Volume: 2;
Issue: 4;
Start page: 384;
Date: 2013;
Original page

Keywords: volatile oils | chemical composition | free radicals

The objectives of this study were to chemically characterize and evaluate the antioxidant activity of essential oils Cinnamodendron dinisii Schwacke (pepper) and Siparuna guianensis Aublet (negramina). The essential oil was isolated by hydrodistillation using a Clevenger modified apparatus, and the identification and quantification of constituents, through GC/MS and GC-FID analysis. The antioxidant activity was evaluated using β-carotene/linoleic acid system and the DPPH radical sequestering method. In chromatographic analysis, the majority constituents found in the essential oil of C. dinisii were bicyclic monoterpenes, α-pinene (35.41%), β-pinene (17.81%), sabinene (12.01%) and sesquiterpene bicyclogermacrene (7.59%). In the essential oil of the fresh leaves of Siparuna guianensis Aublet, acyclic monoterpene, β-myrcene (13.14%), and sesquiterpenes, germacrene-D (8.68%) and bicyclogermacrene (16.71%) were identified. The antioxidant activity was low by the β-carotene/linoleic acid test and was not evidenced by the DPPH test, for both oils evaluated.

Tango Jona
Tangokurs Rapperswil-Jona

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