The in vitro antioxidative properties of the essential oils and methanol extracts of Satureja spicigera (K. Koch.) Boiss. and Satureja cuneifolia ten
Göster/ Aç
Erişim
info:eu-repo/semantics/openAccessTarih
2007Yazar
Eminağaoğlu, ÖzgürTepe, Bektaş
Yumrutaş, Önder
Akpulat, Hüseyin Aşkın
Daferera, Dimitra
Polissiou, Moschos
Sokmen, Atalay
Üst veri
Tüm öğe kaydını gösterÖzet
This study was dcsigııed to examine the in vitro antioxidant activities of the essential oil and methanol extracts of Satııreja Jpicigera and S. cımeifo/ia from Turkish flora. GC and GC/MS analysis of the essential oils resulted in the identification of 40 and 29 compounds, representing the 99.4% and 99.5% of the oils, respectively. Major constituents of tlıe oils werc carvacrol (42.5% and 67.1%), y-terpinene (21.5'Yo and 15.2%) and p-cymcne (20.9% and 6.7%), respectively. Mctlıanol extracts were alsa obtaincd froın the aerial parts of the plants. The saınples were subjccted to a screening for their possible antioxidant activitics by using 2,2-diphcnyl - l-picrylhydrazyl (DPPH) and [l-carotcnc-linoleic acid assays. ln general, samplcs obtained from S.·cııııeifolia exerted greater antioxidant activities than did those obtained froın S. spicigera . In the DPPH test system, free radical-scavenging activity of S. spicigera oil was detennined to be 127 ± 1 .63 rıg/ml, whcrcas 1C50 value of S. cwıeifo/ia was 89. 1 ± 2.29 rıg/ml. in the p-carotene-linoleic acid test system, antioxidant activities of the oil wcrc 81.7 ± 1.14% ancl 93.7 ± J .83%, respectively. Antioxiclant activities of the synthetic antioxiclant, BHT, ascorbic acid, curcumin and cı.-tocopherol were also determinecl in parallel experiments. © 2005 Elsevier Ltcl. All rights reservccl.