Changes in the essential oil composition of leaves of Echinodorus macrophyllus exposed to

Revista Brasileira de Farmacognosia

Thiago M. Silva²  Roqueline R. S. Miranda²  Vany P. Ferraz²  Márcio T. Pereira¹  Ezequias P. De Siqueira¹  Antônio F. C. Alcântara² 

[1] ,Universidade Federal de Minas Gerais ICEx Departamento de Química Minas Gerais ,Brazil

关键词: Alismataceae;    Echinodorus macrophyllus;    essential oil;    y-radiation;    gas chromatography;   

DOI  :  10.1590/S0102-695X2013005000049

来源: SciELO

【 摘 要 】

Leaves of Echinodorus macrophyllus (Kunth) Micheli, Alismataceae, were exposed to different doses of γ-radiation (0.00, 1.00, 3.00, 5.00, 10.00, and 20.00 kGy) and the chemical composition of their essential oils was investigated. The extractive process of the essential oil was more favored when the leaves were irradiated. The essential oil components were identified by correlation between GC-FID data and retention parameters obtained from the Kováts method. Moreover, GC-MS analyses of the essential oils were correlated with fragmentation profiles in the NIST standard mass fragmentation data bank. The essential oil of E. macrophyllus contains biologically active constituents of different chemical classes. Acyclic monoterpenes and sesquiterpenes showed increase in concentration when the leaves were exposed to γ-radiation. On the other hand, the component concentrations of some chemical classes were lightly decreased, i.e., for bicyclic monoterpenes, diterpenes, triterpenes, carboxylic esters, and carotenoid derivatives.

【 授权许可】

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