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Phyton (Buenos Aires)

versión On-line ISSN 1851-5657

Resumen

PEREZ-AMADOR, MC; MUNOZ, V; NOYOLA, A  y  GARCIA-JIMENEZ, F. Essential oil and phototoxic compounds in Clibadium surinamense L. and Montanoa grandiflora D.C. (Asteraceae). Phyton (B. Aires) [online]. 2006, vol.75, pp. 145-150. ISSN 1851-5657.

Two Asteraceae species, Clibadium surinamense L. and Montanoa grandiflora D.C., were analyzed to determine the composition of the essential oil and to search for phototoxic compounds. Three parts of the plants were studied, inflorescence, stems and leaves. Intra and interspecific differences were found in the essential oil composition, which was determined by gas chromatography. In the chromatographic profiles, run for phototoxic compounds, spots for these products were present in the Clibadium surinamense extracts, but were absent in Montanoa grandiflora. From the hexane extract of Clibadium surinamense inflorescence 2 new polyacetylene esters were isolated, ichtyothereol capric ester and its derivate tetrahydroichthyothereol-7'- en-miristic ester.

Palabras llave : Asteraceae; Phototoxic compounds; Essential oils.

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