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Seasonal Variation of the Chemical Constituents of the Essential Oil of Santolina etrusca from Italy
Author(s) -
Flamini Guido,
Cioni Pier Luigi
Publication year - 2007
Publication title -
chemistry and biodiversity
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.427
H-Index - 70
eISSN - 1612-1880
pISSN - 1612-1872
DOI - 10.1002/cbdv.200790069
Subject(s) - asteraceae , essential oil , germacrene , germacrene d , sesquiterpene , botany , population , chemistry , myrcene , yield (engineering) , horticulture , biology , limonene , demography , sociology , materials science , metallurgy
The seasonal variation of the essential oil, in terms of both yield and composition, of a population of Santolina etrusca (Asteraceae) is reported in detail for different aerial parts, including sterile branches, fertile branches, and capitula. The yields generally increased from November to June, and then decreased in August and September. The main constituents of the sterile branches were 1,8‐cineole and viridiflorol. The oil from fertile branches was characterized by myrcene as principal compound, whereas the essential oil obtained from the capitula contained germacrene D as the main constituent. Several compounds, as identified by GC and GC/MS, were found to prevail during the cold season.