Direct identification and quantitative determination of costunolide and dehydrocostuslactone in the fixed oil of Laurus novocanariensis by13C-NMR spectroscopy

Ferrari, Bernard; Castilho, Paula; Tomi, Félix; Rodrigues, Ana Isabel; Costa, Maria do Céu; Casanova, Joseph

http://hdl.handle.net/10400.13/3269

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Authors

Ferrari, Bernard

Castilho, Paula

Tomi, Félix

Rodrigues, Ana Isabel

Costa, Maria do Céu

Casanova, Joseph

Abstract(s)

The fixed oil of Laurus novocanariensis (previously L. azorica) contains mostly glycerides together with minor non-saponifiable compounds. The direct identification and quantitative determination of costunolide and dehydrocostuslactone, two sesquiterpene lactones components of the oil that exhibit biological activities, is described. The analysis was carried out using 13C-NMR spectroscopy (signal acquisition with inverse gated decoupling of protons; diglyme as internal standard) without separation, derivatisation or any sample preparation.

Keywords

13C-NMR Quantification Costunolide Dehydrocostuslactone Laurus novocanariensis L. azorica . Faculdade de Ciências Exatas e da Engenharia

URI

http://hdl.handle.net/10400.13/3269

Citation

Ferrari, B., Castilho, P., Tomi, F., Rodrigues, A. I., do Ceu Costa, M., & Casanova, J. (2005). Direct identification and quantitative determination of costunolide and dehydrocostuslactone in the fixed oil of Laurus novocanariensis by 13C‐NMR spectroscopy. Phytochemical Analysis: An International Journal of Plant Chemical and Biochemical Techniques, 16(2), 104-107.