SciELO - Scientific Electronic Library Online

 
vol.17 número7Sweet potato tissue-epoxy resin composite biosensor for hydroquinone determination in photographic process wastewaterA microgravimetric study of simultaneous adsorption of anions and copper on polycrystalline Pt surfaces índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Journal of the Brazilian Chemical Society

versión impresa ISSN 0103-5053

Resumen

LAGO, João Henrique G.; FAVERO, Oriana A.  y  ROMOFF, Paulete. Microclimatic factors and phenology influences in the chemical composition of the essential oils from Pittosporum undulatum Vent. leaves. J. Braz. Chem. Soc. [online]. 2006, vol.17, n.7, pp. 1334-1338. ISSN 0103-5053.  http://dx.doi.org/10.1590/S0103-50532006000700021.

The essential oil from leaves of a Brazilian specimen of Pittosporum undulatum Vent. was analyzed by means of gas chromatography-mass spectrometry (GC-MS) and NMR analysis after chromatographic separation. The leaves of P. undulatum were collected during one year (January, March, May, July, September and November, 2004) and the obtained essential oils were analyzed. The oil is rich in hydrocarbon monoterpenes and sesquiterpenes, being (+)-limonene the main constituent. It was observed a significant variation on the relative amount of (+)-limonene in these collections, which could be associated to microclimatic parameters (temperature and pluviometric index) despite of phenology of the studied species.

Palabras llave : Pittosporum undulatum; essential oil; chemical variability.

        · resumen en Portugués     · texto en Inglés     · pdf en Inglés