Naslov
Sesquiterpenes in essential oils of some Centaurea species

Autori
Carev, Ivana ; Ruscic, Mirko ; Politeo, Olivera

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts/10 th Summer Course for Mass Spectrometry in Biotechnology and Medicine/Dubrovnik, Hrvatska/2016. / - , 2016, 47-49

Skup
10 th Summer Course for Mass Spectrometry in Biotechnology and Medicine

Mjesto i datum
Dubrovnik, Hrvatska, 03.07.2016. - 09.07.2016

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
Centaurea ; essential oils

Sažetak
Centaurea genus, Asteracea family, is widespread in worldwide area comprising around 300 species of which in Croatia are present around 80 with 27 endemics. 1-3 Asteracea species are well known for their medicinal properties as result of many bioactive compounds they comprise. 4-6 In eastern Mediterranean ethnopharmacology Centaurea species are used as medical plants in treatment of diseases like malaria, peptic ulcer, herpes labialis, common cold, dyspepsia, abscesses, hemorrhoids and some gastrointestinal disorders. 7, 8 Centaurea essential oils have good biological activity, esspecialy antimicrobe activitiy that is usually connected with the dominant compounds present in essential oils. 9-17 Centaurea essential oils are mainly characterized with sesquiterpenes as dominant compounds, and in some cases with nonterpene derivatives with hydrocarbons and aliphatic acids as dominant ones. Sesquiterpene hydrocarbon derivatives are among sesuiterpenes presented in higher amount and less with oxygenated ones. Germacrene D, -caryophyllene, bicyclogermacrene, caryophyllene oxide, spathulenol, -copane, -cadinene, -muurolene, -selinene and -humulene are most characteristic. Monoterpenes are rarely present with -pinene, -pinene, myrcene, p-cymene, -phellandrene and limonene as representatives in total amount of less than 1%. Nonterpene derivatives, except hydrocarbons and acids, may comprise also aldehydes, ketones, alcohols and esters. 18 The aim of this work was to characterize the essential oil composition of Centaurea species from Croatia. Essential oils were hydrodistilled from aerial parts of the plants in Clevenger-like apparatus for two hours. Chemical composition of selected essential oils was assessed using GC/MS technique. Identification of volatile oil constituents was based on comparison of compound mass spectra with databases (Wiley 7 library - Wiley, New York, NY, USA) as well as on comparisonof their literature retention indices using NIST2002 database (National Institute of Standards and Technology, 20 Gaithersburg, MD, USA) and their retention indices relative to series of n-alkanes C 9 -C 40 with Faculty of Chemistry internal database retention indices. and 19 The percentage of components was calculated as mean values from the GC and GC-MS peak areas. The main constituents present were sesquiterpenes germacrene D and -caryophyllene, as well as nonterpene hydrocarbons and acids with hexadecanoic acid as dominant constituent. All listed compound are very common constituents of Centaurea essential oils.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA