Screening chemical composition and in vitro antioxidant and antimicrobial activities of the essential oils from Origanum syriacum L. growing in turkey

被引:175
作者
Alma, MH
Mavi, A
Yildirim, A
Digrak, M [1 ]
Hirata, T
机构
[1] Univ Kahramanmaras Sutcu Imam, Fac Arts & Sci, Dept Biol, TR-46060 Kahramanmaras, Turkey
[2] Univ Kahramanmaras Sutcu Imam, Fac Forestry, Dept Ind Engn Forestry, TR-46060 Kahramanmaras, Turkey
[3] Ataturk Univ, Fac Kazim Karabekir Egitim, Dept Chem, TR-25240 Erzurum, Turkey
[4] Hiroshima Univ, Grad Sch Sci, Dept Math & Life Sci, Biol Chem Lab, Higashihiroshima 7398526, Japan
关键词
antimicrobial activity; essential oil; Turkey; antioxidant; chemical composition; Origanum syriacum;
D O I
10.1248/bpb.26.1725
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
In the present study, essential oil from the leaves of Syrian oreganum [Origanum syriacum L. (Lauraceae)] grown in Turkish state forests of the Dortyol district, Turkey, was obtained by steam distillation. The chemical composition of oil was analysed by GC and GC-MS, and was found to contain 49.02% monoterpenes, 36.60% oxygenated monoterpenes and 12.59% sesquiterpenes. The major components are as follows: gamma-terpinene, carvacrol, p-eymene and beta-caryophyllene. Subsequently, the reducing power, antioxidant and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical-scavenging activities of the essential oil were studied. The reducing power was compared with ascorbic acid, and the other activities were compared with 2,6-di-tert-butyl-4-methyl phenol (BHT, butylated hydroxytoluene). The results showed that the activities were concentration dependent. The antioxidant activities of the oil were slightly lower than those of ascorbic acid or BHT, so the oil can be considered an effective natural antioxidant. Antimicrobial activities of the essential oil from the leaves of Origanum syriacum was also determined on 16 microorganisms tested using the agar-disc diffusion method, and showed antimicrobial activity against 13 of these.
引用
收藏
页码:1725 / 1729
页数:5
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