The genus L. (Lamiaceae) is a genus growing in mild climate zones, particularly in the Mediterranean Basin and Central Asia. It is represented by 11 taxa in Sardinia (Italy), living commonly in sunny habitats. In this study, the following eight Sardinian taxa were selected, and the essential oils (EOs), obtained by stem distillation, were analyzed by GC-FID and GC-MS: subsp. , T. subsp. , subsp. , . , , subsp. , , and . The comprehensive analyses led to the identification of 87 constituents representing the majority of the volatile compounds. Significant differences, both qualitative and quantitative, were observed between the taxa. Overall, monoterpenes and sesquiterpenes characterized all EOs: subsp. and subsp. revealed the highest content of monoterpene hydrocarbons, while in the other taxa sesquiterpene hydrocarbons prevailed. Worthy of note, diterpenes were found only in . and , whereas was rich in non-terpenic oxygenated compounds. To the best of our knowledge, this is the first comprehensive report on the chemical composition of EOs obtained from Sardinian species.
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| http://dx.doi.org/10.3390/plants10071359 | DOI Listing |
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