Ayla Kaya

The essential oil of Acinos alpinus (L.) Moench growing in Turkey

Water-distilled essential oils of nine samples of Acinos alpinus (L.) Moench, collected from the Aegean region of Turkey, were analysed by GC–MS. One-hundred-and-twenty compounds, which amounted to 84.4–92.8% of the total components detected were identified. The main constituents were found as germacrene-D (3.5–39.8%), hexadecanoic acid (3.7–24.3%) and thymol (10.9–15.3%). Copyright

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 α-terpineol (5.3%).

Composition of the essential oils of two subspecies of Sideritis germanicopolitana Bornm

ABSTRACT Water distilled essential oils from two subspecies of Sideritis germanicopolitana Bornm.; subsp. germanicopolitana and subsp. viridis Hausskn. et Bornm., (endemic to Turkey) were examined by GC/MS. Both subspecies were found to possess 0.33% oil in which the main component was myrcene (38.94–49.22%).

Compositions of essential oils and trichomes of Teucrium chamaedrys L. subsp. trapezunticum Rech. fil. and subsp. syspirense (C. Koch) Rech. fil.

Teucrium chamaedrys L. is a member of the Lamiaceae family and is represented in the Flora of Turkey by six subspecies. The aerial organs of T. chamaedrys L. subsp. trapezunticum Rech. fil. and subsp. syspirense (C. Koch) Rech. fil. bears numerous eglandular and glandular trichomes. Eglandular trichomes are simple, long-multicellular with cuticular micropapillae, and glandular hairs are of peltate and capitate types. The peltate hairs consist of a basal cell, a short unicellular stalk, and multicellular secretory head, and the capitate ones possess 1-2 stalk cells and one glandular head cell. The aerial parts were subjected to microdistillation for the isolation of volatiles. The analysis was simultaneously performed by using gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). The major components were characterized as beta-caryophyllene (18%), nonacosane (12%), germacrene D (11%), caryophyllene oxide (7%), and alpha-pinene (7%) for subsp. trapezunticum, and caryophyllene oxide (23%), alpha-pinene (11%), and caryophyllenol II (5%) for subsp. syspirense.

The essential oil of Acinos suaveolens (Sm.) G. Don fil. Acinos arvensis (Lam.) Dandy and Acinos rotundifolius Pers. growing wild in Turkey

In this study, water-distilled essential oil of three species of Acinos Miller (Lamiaceae) were analysed by GC–MS. Oils from A. suaveolens (Sm.) G. Don fil. were found to contain pulegone (23.2–80.7%) and isomenthone (1.1–54.1%). Oils from A. arvensis (Lam.) Dandy and A. rotundifolius Pers. were found to contain germacrene-D (14.3% and 14.4–73.1%) hexadecanoic acid (14.0% and 17.5–30.2%). Copyright

Study of the Essential Oils from the Flowers and Fruits of Scandix iberica Bieb. Growing in Turkey

Abstract Microdistilled essential oils from flowers (A) and fruits (B) of Scandix iberica Bieb. were analyzed by GC and GC/MS. A total of 29 and 27 compounds were identified representing 99.3% and 99.4% of the flower and fruit oils, respectively. The main constituent was found to be methyl chavicol (85.8–90.5 %) in both cases.

Essential oils of Acinos troodi (Post) Leblebici subsp. vardaranus Leblebici and subsp. grandiflorus Hartvig & Strid

Water-distilled essential oils of two subspecies of Acinos troodi (Post) Leblebici, namely, subsp. vardaranus Leblebici and subsp. grandiflorus Hartvig & Strid, both of which are endemic taxa in Turkey, were analysed by GC–MS. One hundred and seven compounds were identified in the oil of subsp. vardaranus and 79 compounds were identified in the oil of subsp. grandiflorus. The main constituents were found to be hexadecanoic acid (7.5–18.2% and 15.2–22.3%) and germacrene D (10.2–14.5% and 14.1–29.7%), respectively. Copyright

Composition of essential oil of endemic Salvia wiedemannii in Turkey

Salvia L. (Lamiaceae) is represented in Turkey by 94 taxa belonging to 89 species, with a 50% ratio of endemism [1]. They are known as “adacayi” in Turkey, where they grow and are consumed as a hot drink. The name Salvia comes from the Latin word for health (salvare or heal). In early times, many of these species were use as a tonic, stimulant, carminative, antiseptic, and antihydrotic, to flavor food and in the cosmetics, perfumes, and pharmaceutical industries [2]. More recently, the antioxidant effects of sage have also been demonstrated [3–5]. The plants of this genus are rich in essential oils, and among their constituents, 1,8-cineol and guaiane monoand sesquiterpenes are very common [6]. 1,8-Cineol (eucalyptol), which is one of the major component of S. wiedemannii, has been used in traditional medicine as a secretolytic remedy for bronchitis, sinusitis, and colds [7]. Salvia wiedemannii is an aromatic-endemic plant that grows on limestone slopes, roadsides, and fieldsides of central Anatolia, and the flowering time is from May to July [1]. The species has several distinctive morphological characteristics such as indumentum scabridulous, leaves pinnatisect and both surfaces numerous depressed glandular-punctate, stems mostly antrorse-haired, and corolla lilac-blue. The detailed chemical composition of the essential oil of S. wiedemannii is presented here.

Nutlet surface micromorphology of Turkish Satureja (Lamiaceae)

There are some taxonomic uncertainties within the Turkish members of Satureja. It is extremely difficult to distinguish some of Satureja species because of their great morphological similarity. They are represented by fifteen species in Turkey. In this study, the nutlet surface features of species were examined using both stereoscopic and scanning electron microscopy (SEM). The investigated species can be divided into two main types, the more or less smooth and the sculptured, and four subtypes, undulate-reticulate, reticulate, reticulate-protuberculate and papillate-tuberculate. This work offers the description, comparison and illustration of all of these types and subtypes. In addition, the unknown nutlet features of eight Satureja species are described in detail for the first time. It is clear that in future studies, external nutlet characters, especially surface texture, could be useful in species classification of the complex Satureja genus.

Composition of the essential oil of Stachys sericantha, S. gaziantepensis, and S. mardinensis (Lamiaceae) from Turkey

ABSTRACT The genus Stachys L. one of the largest genera of Lamiaceae and Stachys species are used by many people for the therapeutic value of their essential oils. In this study, water-distilled essential oil of three species of Stachys was analysed. The analysis was performed by using gas chromatography-flame ionisation detector (GC-FID) and gas chromatography-mass spectrometry (GC-MS) systems simultaneously. The major components found were hexadecanoic acid (23.7%), dodecanoic acid (11.3%), and caryophyllene oxide (10.7%) for S. sericantha P.H. Davis (endemic); α-pinene (53%), β-pinene (8.2%) for S. gaziantepensis M. Dinc and S. Doğu (endemic); Menthyl acetate (15.3%), isomenthone (15.0%), pulegone (10%), spathulenol (7.0%), and caryophyllene oxide (6.7%) for S. mardinensis (Post) R. Mill.