The Composition of the Essential Oil of Stachys iberica Subsp. Stenostachya Growing In Turkey

The water distilled essential oil from dried aerial parts ofStachys ibericasubsp.stenostachya(Lamiaceae) was analyzed by GC/MS. Seventy-one compounds were characterized representing 96% of the oil. The main constituents were found as linalyl acetate (42.2%), linalool (18.9%), geranyl acetate (8.2%), and -terpineol (5.3%).     

The Essential Oil of Ajuga bombycina from Turkey

Water-distilled essential oil fromAjuga bombycina,endemic in Turkey, was analyzed by GC/MS. Fifty-four compounds were characterized representing 96.2% of the oil with-pinene (28.2%),-pinene (18.5%), germacrene D (8.5%), and-phellandrene + limonene (6.9%) as the major constituents     

Chemical composition and antimicrobial activity of the essential oil of <Emphasis Type="Italic">Anthemis wiedemanniana</Emphasis> from Turkey

The chemical composition and antimicrobial activity of the essential oil from aerial parts of Anthemis wiedemanniana, an endemic taxon of Turkey, were investigated. Linalool (12.75%), 1,8-cineole (8.49%), hexadecanoic acid (6.09%), and chrysanthenone (5.67%) were found to be the main components among the 122 compounds characterized in the essential oil of Anthemis wiedemanniana. Antimicrobial activities were reported against 12 microorganisms and five yeast-like fungi by the disc diffusion method. Published in Khimiya Prirodnykh Soedinenii, No. 1, pp. 40–43, January–February, 2007.     

The Essential Oil of a New Sideritis Species: Sideritis ozturkii Aytac and Aksoy

Water-distilled essential oils from flowering spikes ofSideritis ozturkii (Lamiaceae), a new species, were analyzed by GC/MS. The main components were found to be-pinene (31.1%, 16.0%, and 6.2%), and-pinene (20.2%, 14.2%, and 7.3%) in three samples collected from the same locality at different times     

The composition and antifungal bioassay of the essential oils of differentBetula species growing in Turkey

FiveBetula species,B. pendula, B. browicziana, B. medwediewii, B. litwinowii, andB. recurvata, were collected from different parts of Turkey. The leaves of these species were hydrodistilled to yield the consequent essential oils. The essential oil compositions were investigated by GC/MS. 14-Hydroxy--caryophyllene was the main constituent in the oil ofB. pendula. 14-Hydroxy-4,5-dihydro--caryophyllene, a new compound, was identified as the main constituent in the oils ofB. browicziana, B. litwinowii, and B. recurvata. In the oil ofB. medwediewii methyl salicylate was the main compound. Various phytopathogenic fungi were studied by the agar tube dilution technique to test the antifungal activities of the essential oils at 400 g/ml concentration. The essential oils showed strong antifungal activity againstCephalosporium aphidicola, Drechslera sorokinianse, Fusarium solani, andRhizoctonia cerealis.Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 126–130, March–April, 2000.     

Essential oil composition of three species of Scutellaria from Turkey

The chemical compositions of the essential oils obtained by hydrodistillation from the aerial parts of Scutellaria diffusa, Scutellaria heterophylla and Scutellaria salviifolia were separately identified simultaneously by gas chromatography and gas chromatography-mass spectrometry. The main components were determined as hexadecanoic acid (30%) and caryophyllene oxide (9%) in the oil of S. diffusa. Germacrene D (21%), hexadecanoic acid (16%) and β-caryophyllene (13%) were found as major components in the oil of S. heterophylla. The main components of the oil of S. salviifolia were germacrene D (40%), bicyclogermacrene (14%) and β-caryophyllene (11%). Overall, individually 63, 68 and 43 constituents were identified in the aerial parts of S. diffusa, S. heterophylla and S. salviifolia essential oils representing 92.1%, 89.9% and 90% of the total, respectively.     

VOLATILE COMPOUNDS FROM Haplophyllum myrtifolium

The volatile fractions of the petroleum ether extract and of the alkaloid extract ofHaplophyllum myrtifoliumBoiss., endemic to Turkey, were trapped by using the Solid Phase Micro Extraction (SPME) technique and analyzed by GC/MS. Forty-seven compounds were characterized from the petroleum ether extract of the aerial parts with -caryophyllene (14.6 %), decane (11.4 %), and -phellandrene (7.0 %) as the major components. Chavibetol (21.9 %), eugenol (19.1 %), methyleugenol (10.8 %), trans-linalool oxide (7.1 %) and -cyclocitral (6.0 %) were identified as the major components among the forty-two compounds characterized in the chloroform eluate of the alkaloid extract.     

ESSENTIAL OIL COMPOSITION OF THREE SPECIES OF Achillea FROM KAZAKHSTAN

The chemical composition of essential oils ofAchillea millefoliumL.,A. NobilisL. from Kazakhstan flora andA. GrandifloraBieb introduced in culture at the Karaganda Botanic garden were determined by GC/MS. The main component in the essential oil ofA. MillefoliumL. andA. NobilisL. was found to be camphor, while it was -pinene for A. grandiflora.     

Study of the essential oil composition of Pinus sylvestris from Turkey

The needle oils of Pinus sylvestris L. were analyzed by GC and GC-MS. The results showed some qualitative and quantitative variations. Forty-three components were identified in the oils of P. sylvestris. All the samples of essential oils contained α-pinene, camphene, and β-pinene as major constituents. Chemical variations of P. sylvestris samples were discussed. Published in Khimiya Prirodnykh Soedinenii, No. 1, pp. 22–25, January–February, 2006.