Chemical composition of the essential oil from Stachys serotina (CROSBI ID 170540)
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Podaci o odgovornosti
Jerković, Igor ; Gugić, Mirko ; Maleš, Željan ; Hazler Pilepić, Kroata
engleski
Chemical composition of the essential oil from Stachys serotina
Stachys serotina (Host) Fritsch is an aromatic, erect, perennial plant similar to Stachys officinalis (L.) Trev. but distinguished clearly in very interrupted inflorescence and later flowering period. The aerial parts of S. serotina were collected on Adriatic island Krk in July 2010. The essential oils were isolated by hydrodistillation for 2 hours. The analyses of the obtained essential oil were performed by GC-FID and GC-MS. Results revealed several differences between Stahys serotina and other Stachys species in Croatia, indicating the existence of a chemical polymorphism. Sesquiterpene hydrocarbons were the most abundant class of isolated volatiles with a predominance of β-caryophyllene (22.6%) followed by δ-cadinene (9.6%), α-humulene (7.5%), germacrene D (6.0%) and minor percentages of others. Determined percentage of β-caryophyllene in Stahys serotina was the highest among other Stachys species from Croatia being most abundant in Stachys officinalis (14.6%). In addition, δ- cadinene was also found with largest abundance in comparison with other Stachys species. Monoterpenes were minor oil constituents of Stachys serotina dominated by monoterpene hydrocarbon α-pinene (11.1%).
Stachys serotina (Host) Fritsch; essential oil; β-caryophyllene; GC-FID; GC-MS
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