Alpaslan Koçak

Composition of the Volatile Oils of Two Anthemis L. Taxa from Turkey

The essential oils of water-distilled aerial parts of Anthemis pseudocotula and Anthemis cretica subsp. pontica (Asteraceae) were analysed by GC-MS. As a result thirty-five and forty compounds were identified representing 93.1% and 89.0% of the oils, respectively. The main compounds of A. pseudocotula were 1,8-cineole (39.40%), camphor (9.36%), artemisiaketone (5.68%), filifolene (5.15%), and α-terpineol (4.69%), whereas β-caryophyllene (20.26%), azulene (14.98%), spathulenol (6.03%), and germacrene D (5.82%) were the major constituents of A. cretica subsp. pontica

Biological activities, phenolic profiles and essential oil components of Tanacetum cilicicum (BOISS.) GRIERSON

Abstract Tanacetum species are consumed as tea in Turkey. We comparatively evaluated the phytochemical potentials and antioxidant activities of the essential oil and methanolic extracts of Tanacetum cilicicum. The chemical constitutes of T. cilicicum essential oil and antioxidant activity of this species was analysed by gas chromatography–mass spectrometry (GC–MS) method. Bicyclo (3,1,1) hept-2-en-4-ol (21.92%), camphor (15.56%) and 1,8-cineole (13.45%) which are oxygenated monoterpenes were found as the major constituents. Phenolic acids and flavonoids were quantificated by HPLC–UV. Catechin was found as the main component. The essential oils and methanolic extracts were evaluated by antioxidant activities. The leaves exhibited significant metal chelation activity with a value of 20.75 ± 4.63 μg/mL.

Chemical Composition of Essential Oil of Local Endemic Salvia kronenburgii Rech. fil. to Turkey

Abstract In this study, essential oil composition of local endemic Salvia kronenburgii Rech. fil. to Turkey were determined. The aerial parts of Salvia kronenburgii Rech. fil were hydro-distilled to produce the oil in the yields of 0.7 v/w. The chemical composition of the essential oil of dried aerial parts of S. kronenburgii was analyzed by GC and GC-MS. Fifty four components were identified representing 87.08 % of the oil. Limonene (11.77 %), 2-cyclohexen-1-ol (9.25 %), trans-verbenol (7.70 %) and trans-(+)-carveol (6.77 %) were found to be major components in S. kronenburgii. The distribution of the essential oil constituents was discussed in Salvia genus patterns.

Based on the Quantity, Temperature and Time, The Examination of Variability in Odorous Components of Tanacetum abrotanifolium from Turkey: An Exclusive Gradient Work

Abstract: In these exclusive study accomplished by plant of Tanacetum abrotanifolium collected from natural habitats in the eastern region of Anatolia in Turkey and was studied for the first time. Twenty-three volatile components of this species were analyzed with head-space solid micro-extraction (HS-SPME) and determined by gas chromatography mass spectrometer (GC-MS) for the first time. Moreover, while this process depending on the temperature, time and amount are formed twelve different gradients. Carried out according to these the gradients eucalyptol, in the range of 20.8 % to 31.5 % in the all those gradient, was determined as main components, sort it followed by components camphor by 6.94-25.79 % and p-cymene by 8.37-13.6 %. Executed these different gradients revealed that are specific and different operating conditions for each compound.

Chemical composition of the seeds of some Medicago species

phytochemical properties of some legumes widely [9–12]. The objective of the present study was to determine the tannin, protein contents, and fatty acid composition of the seeds of Medicago L. species (M. disciformis DC., M. polymorpha L., M. intertexta (L.) Mill., M. scutellata (L.) Mill., M. truncatula Gaertn. and M. orbicularis var. marginata (L.) Bart.). The results of the fatty acid analysis are shown in Table 1, and total protein and tannin contents in Table 2. The total protein amounts of the feed crops studied were found to be between 30.50–47.17% in Medicago orbicularis var. marginata and M. truncatula. These were 34.87, 34.93, 36.20, and 38.30% in M. intertexta, M. scutellata, M. disciformis, and M. polymorpha, respectively. The protein levels were determined in fruit, leaf, and steam of Medicago noeana, M. orbicularis, M. polymorpha var. vulgaris, M. rigidula var. submitis, and M. rigidula var. rigidula [7]. According to them, the protein levels studied were found to be between 20% and 30%. The protein levels of fruits were found to be higher than those in leaf and steam. On the other hand, the protein contents of fruit of M. noeana, M. orbicularis, and M. polymorpha var.vulgaris were found to be higher than in fruits of other species. The tannin amounts of feed crops studied were found to be between 0.27–1.23% in M. orbicularis var. marginata and M. scutellata. The others comprise 0.30% (M. intertexta) and 0.70% (M. disciformis, M. polymorpha and M. truncatula), respectively. It was reported that condensed tannin may act as anthelmintics against parasitic nematodes or indirectly by improving nitrogen supply [13–15]. The main components in the seed oils of Medicago species were palmitic, oleic, linoleic, and linolenic acids. The other fatty acids of the legume seed oils (arachidic and lignoceric acid) in the studied species were shown to be lower than 1% except for M. truncatula (Table 1). This is similar to those reported [12]. On the other hand, behenic acid was at the highest level in M. disciformis (1.11%). Some researches have indicated that oils with high levels of long-chain SFA such as behenic acid may be difficult for digesting enzymes to digest in humans and animals [16]. The results of the present study, as far as unsaturated fatty acid content is concerned, are supported by previous leguminous studies [12, 17, 18]. All these studies showed that the saturated, and particularly unsaturated, fatty acid contents of Fabaceae seed oils are closely allied to each other and that the main components in the oils are linoleic-oleic type fatty acids. Seed Samples. Matured seeds of these species were collected from various locations in Adana (Turkey) between June and August 2009.