Leaf oil composition of Croton zambesicus Muell. Arg. growing in southwestern Nigeria: essential oil chemotypes of C. zambesicus
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چکیده
The leaf essential oil of Croton zambesicus growing in Odogbolu, Ogun State, Nigeria, was obtained and analyzed by GC-MS. The leaf oil was dominated by the sesquiterpenoids -caryophyllene (8.8%) and caryophyllene oxide (21.7%), the monoterpenoids linalool (6.2%) and camphor (5.9%), and the diterpenoident-trachyloban-3-one (8.1%). A numerical cluster analyses has revealed at least two chemotypes of C. zambesicus, a monoterpene-rich chemotype, dominated by -pinene and limonene, and a sesquiterpenoid-rich chemotype, dominated by -caryophyllene and caryophyllene oxide.
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