title: An interpopulation study of the essential oils of Cistus parviflorus L. growing in Crete (Greece).
abstract: The composition of the essential oils of nine populations of Cistus parviflorus L., from Crete (Greece) and their interpopulation variability, were investigated by GC-MS. 114 compounds were identified representing an average of 85-96% of oil composition. Labdane diterpenes were detected and identified in the essential oils of Cistus parviflorus L. for the first time. The results obtained from GC-MS analysis of the volatile oils were submitted to principal component and chemometric cluster analysis. Two main chemotypes (clusters) were differentiated; the first of West Crete and the second of East Crete. Carvacrol, caryophyllene oxide, alpha-epi-cadinol, abietatriene, 4-epi-dehydroabietol, dehydro abietol, cis-ferruginol and manoyl oxide mixture of isomers are the main constituents, while oxygenated sesquiterpenes as well as diterpenes have been found in high percentage composition.
authors.affiliation: Department of Pharmacognosy, School of Pharmacy, University of Athens, Panepistimiopolis Zografou 15771, Athens, Greece
authors.forename: D
authors.initials: D
authors.lastname: Angelopoulou
authors.forename: C
authors.initials: C
authors.lastname: Demetzos
authors.forename: D
authors.initials: D
authors.lastname: Perdetzoglou