Chemical composition and seasonal variation of the volatile oils from leaves of Michelia champaca L., Magnoliaceae

Revista Brasileira de Farmacognosia

João Henrique G. Lago²  Oriana A. Fávero¹  Paulete Romoff¹ 

[1] ,Universidade Federal de São Paulo Departamento de Ciências Exatas e da Terra Diadema SP ,Brazil

关键词: Michelia champaca;    terpenoids;    seasonal variation;    Michelia champaca;    terpenoides;    variação sazonal;   

DOI  :  10.1590/S0102-695X2009000600015

来源: SciELO

【 摘 要 】

The volatile oils from leaves of Michelia champaca L. collected bimonthly during one year (four times on the fifteenth day of January, March, May, July, September, and November - 2004) were subjected to GC/FID and GC-MS analysis, from which thirteen components were identified. Additionally, part of the oil obtained from January collection was subjected to fractionation over silica gel soaked with AgNO3 to afford five of the main sesquiterpenes (β-elemene, β-caryophyllene, α-humulene, β-selinene, and α-cadinol). The obtained data showed a significative variation in the proportions of the components, which could be associated to climatic parameters in each collection periods.

【 授权许可】

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