Microclimatic factors and phenology influences in the chemical composition of the essential oils from Pittosporum undulatum Vent. leaves

Journal of the Brazilian Chemical Society

João Henrique G. Lago¹  Oriana A. Fávero¹  Paulete Romoff¹ 

[1] ,Universidade Presbiteriana Mackenzie Centro de Ciências e Humanidades São Paulo SP ,Brazil

关键词: Pittosporum undulatum;    essential oil;    chemical variability;   

DOI  :  10.1590/S0103-50532006000700021

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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