Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Gul, Muhammet(82)
- Akkurt, Nevzat(67)
- Güler, Ömer(66)
- Baskonus, Haci Mehmet(62)
- Bulut, Hasan(60)
- Tekin, H.O.(52)
- ALMisned, Ghada(49)
- Yucesan, Melih(43)
- Yildirim, Numan(42)
- Yildirim, Nuran Cikcikoglu(38)
- Paksoy, Mehmet Yavuz(36)
- Serdar, Osman(36)
- Zengin, Gokhan(36)
- Ince, Muharrem(34)
- Celik, Erkan(33)
- Benzer, Fulya(32)
- Kocabaş, Mehmet(30)
- Sulaiman, Tukur Abdulkadir(30)
- Tanyol, Mehtap(29)
- Yildirim, Ozal(28)
- Aslan, Naim(26)
- Kök, Mediha(26)
- Özkul, İskender(26)
- Ates, Mehmet(25)
- Danabas, Durali(25)
- Kutluyer, Filiz(25)
- Can, Erkan(24)
- Kutlu, Banu(23)
- Onat, Onur(23)
- Demir, Veysel(22)
- Erten, Fusun(22)
- Guler, Omer(22)
- Say, Yakup(22)
- Güler, Seval Hale(21)
- Yaman, Mehmet(21)
- Baykal, Duygu Sen(20)
- Sançar, Taylan(20)
- Susam, Selim Orhun(20)
- Cakilcioglu, Ugur(19)
- Orhan, Cemal(19)
Yayınlar
- MakaleAçık Erişim2014Scopus SJRQ3EFFECT OF DIETARY KEFIR ON THE DIGESTIVE AND LIVER ENZYMES ACTIVITIES AND GLUCOSE LEVEL OF CORUH TROUT, SALMO CORUHENSIS (ACTINOPTERYGII: SALMONIFORMES: SALMONIDAE)
Can, Safak Seyhaneyildiz; Kutluyer, Filiz; Can, Erkan; Kayis, Sevki; Sonay, Fatma Delihasan; Köse, Ozay; Aksu, Onder; Erdamar, Husamettin; Yigitoglu, M. Ramazan; Kayim, Murathan
The probiotics are very important for aquaculture because of their role in enhancing the fish health status, improving disease resistance, growth performance, and body composition, reducing malformations, improving gut morphology and the overall microbial balance. The objective of the presently reported study was to investigate effects of kefir as a probiotic product on the digestive and hepatic enzyme activities, as well as glucose level of Coruh trout, Salmo coruhensis Turan, Kottelat et Engin, 2010. The experiment was performed with four treatments: control group (no kefir), D1, D2, and D3 (kefir-supplemented diet: 10, 20, and 40 g . kg(-1) fish body mass, respectively). The activity of: alanine aminotransferase (ALT), aspartate aminotranferase (AST), lactate dehydrogenase (LDH), lipase, amylase-as well as the glucose levels were determined after 4 months. The results indicated that glucose levels (P < 0.05) and digestive enzymes (lipase and amylase) in the blood serum decreased in fish fed diets containing kefir (P > 0.05). On the contrary, the activity of liver enzymes (ALT, AST, and LDH) increased insignificantly (P > 0.05). In conclusion, digestive and liver enzyme activities were affected by quantitative changes in dietary kefir insignificantly but further research is needed to establish whether the liver and digestive enzyme physiology of Coruh trout can be affected by kefir-supplemented diets in a long-term trial.
AtıfWoS6OpenAlex12
İncele - MakaleAçık Erişim2014Scopus SJRQ2Verbascum duzgunbabadagensis (Scrophulariaceae), a new species from eastern Anatolia, Turkey
Karaveliogullari, Faik Ahmet; Yüce, Ebru; Baser, Birol
Verbascum duzgunbabadagensis (Scrophulariaceae) is described and illustrated as a new species endemic to eastern Anatolia, Turkey. In this study, diagnostic morphological characters of this and closely related species (V. luciliae and V. rupicola) are discussed. Pollen and seed morphology of the new species and of similar taxa are documented. The seeds of this group are brown in color and oblong in V. luciliae and V. rupicola, whereas they are dark brown in color and ovate in shape in V. duzgunbabadagensis. Furthermore, distribution maps for the three taxa are provided.
AtıfWoS32OpenAlex29İncele - MakaleAçık Erişim2014Scopus SJRQ1Automatic recognition system of underlying causes of power quality disturbances based on S-Transform and Extreme Learning Machine
Eristi, Huseyin; Yildirim, Ozal; Eristi, Belkis; Demir, Yakup
In this paper, a new S-Transform and Extreme Learning Machine (ST-ELM)-based event recognition approach for the purpose of classifying power quality (PQ) event signals automatically has been proposed. In this approach, the distinctive features of the PQ event signals have been obtained with the S-Transform-based feature extraction. The feature vector obtained with feature extraction has been applied as input to the ELM classifier. Ten different classification procedures were determined within the framework of this study to assess the performance of the ELM classifier on PQ event data. Real PQ event data and synthetic PQ event data obtained from MATIAB/Simulink environment have been used in these procedures. Also, three different PQ event data sets, which are formed by adding noises of 20, 30 and 50 dB to the synthetic PQ event data respectively, have been used in order to assess the performance of the proposed approach on noisy conditions. According to the results of performance evaluations, the proposed ST-ELM-based PQ event recognition system has a very high performance of recognizing PQ event data. Besides, classification of noisy data showed that the proposed approach is robust at recognizing noisy data. The performance of the ST-ELM-based recognition system on PQ data shows that this approach has an effective recognition structure that can be used in real power systems. (C) 2014 Elsevier Ltd. All rights reserved.
AtıfWoS63OpenAlex93İncele - MakaleYalnız künye2014Scopus SJRQ2Essential Oil Composition, Antioxidant and Antifungal Activities of Salvia sclarea L. from Munzur Valley in Tunceli, Turkey
Yuce, E.; Yildirim, N.; Yildirim, N. C.; Paksoy, M. Y.; Bagci, E.
The essential oil composition and in vitro antioxidant and antifungal activity of the Salvia sclarea L. from Munzur Valley in Tunceli, Turkey were evaluated in this research. The in vitro antifungal activity of ethanol, hexane and aqueous extracts of S. sclarea against pathogen fungi Epicoccum nigrum and Colletotrichum coc-codes were investigated. The essential oil of aerial parts of S. sclarea was obtained by hydrodistillation and was analysed by GC and GC-MS. Total antioxidant status was determined by using Rel assay diagnostics TAS assay kit (Lot. RL024) by Multiscan FC (Thermo). 33 compounds were identified representing the 85.0% of the total oil. The most abundant components (> 5%) of the S. sclarea essential oils were caryophyllene oxide (24.1%), sclareol (11.5%), spathulenol (11.4%), 1H-naphtho (2,1,6) pyran (8.6%) and beta-caryophyllene (5.1%). The best antifungal and antioxidant effect was seen in ethanolic S. sclarea extract. It can be said that Salvia sclerae could be used as natural antioxidant.
AtıfWoS26
İncele - MakaleAçık Erişim2014Scopus SJRQ2Morphological, karyological features and pollen morphology of endemic Ebenus haussknechtii Bornm. ex Hub.-Mor. from Turkey: A traditional medicinal herb
Hayta, Sukru; Tasar, Neslihan; Cakilcioglu, Ugur; Gedik, Osman
In this study, morphological, morphometrical, karyological and detailed pollen morphology of Ebenus haussknechtii endemic to Turkey was studied for the first time. In the morphologic study, some morphological and morphometrical features of the plant were observed and compared with the published findings in the Flora of Turkey. Karyogram and idiograms of the plant were also prepared. The chromosome number of E. haussknechtii was determined as 2n = 14 and haploid karyotype formula 5 m + 1 sm + 1M. Metaphase chromosome length ranged from 2.16 to 1.93 mu m and the total haploid chromosome length was 17.90 mu m. The results of the light microscope investigation of the pollen revealed that the pollen grains were radially symmetrical, isopolar, tricolpate and prolate. Measurement of the reticulum heterobrachate indicated their ornamentation to be reticulate. (C) 2014 Elsevier GmbH. All rights reserved.
AtıfWoS16OpenAlex15İncele - MakaleÖn baskısı açık2014Scopus SJRQ3Sensorless vector control of PMSM with non-sinusoidal flux using observer based on FEM
Oksuztepe, Eyyup; Omac, Zeki; Kurum, Hasan
Back electromotive force method has been widely used in the position and speed sensorless control of permanent magnet synchronous motors. In this method, it is supposed that the back electromotive forces induced on the stator windings by the rotor permanent magnets are sinusoidal. This assumption causes errors in the estimation of speed and position. In this paper, an observer using the stator winding linkage flux model obtained by using finite element method for position and speed sensorless field-oriented control of permanent magnet motor is proposed. The validity of the proposed method is demonstrated using DS 1104.
AtıfWoS11OpenAlex12İncele - MakaleYalnız künye2014Scopus SJRQ4NMR Proton Spin-Lattice Relaxation Mechanism in D2O Solutions of Albumin Determined at 400 MHz
Yilmaz, A.; Zengin, B.; Ulak, F. Sadan
T-1 values in pure D2O and D2O solutions of human serum albumin (HSA) were measured versus temperature. A formula was derived based on H-H interactions between the surface HDO and non-exchangeable protein protons. The formula was used to evaluate the average distance of the interactions (rav). The effective correlation times were then derived by replacing the experimental data in the formula. Short correlation times obtained for the solution with low HSA (0.02 g albumin for one ml of D2O) decreased from 53 to 29 ps, while longer times increased from 1.19 to 2.22 ns. They are of the order of a fraction of a nanosecond for the solution with high HSA (0.08 g albumin per one ml of D2O). The perfect consistency between the derived theory and experimental data indicates that the high-field 1/T-1 in D2O solutions of albumin is caused by dipolar interactions between the surface HDO and non-exchangeable protein protons. It also suggests that the effective correlation time of the surface HDO is of the order of the mean lifetime of short-lived surface water.
AtıfWoS9OpenAlex12İncele - MakaleYalnız künye2014Scopus SJRQ3Use of Clove Oil and Eugenol to Anesthetize Fingerling Shabut Barbus grypus
Ögretmen, Fatih; Gölbasi, Selami; Inanan, Burak E.; Kizak, Volkan; Kayim, Murathan
In this study, the efficacy of four doses of clove oil and eugenol were compared to sedate fingerling Shabut Barbus grypus to various stages of sedation and recovery. The results from the present study indicated that effective concentrations were at 50L/L for eugenol (induction time: 58 8s; recovery time: 199 +/- 15s [mean +/- SD]) and clove oil (induction time: 76 +/- 6s; recovery time: 161 +/- 34s). The induction times decreased significantly with the increasing concentrations of clove oil and eugenol, while recovery times increased with increasing concentrations of anesthetic (P < 0.05). Exposure of fish to 75 or 100L/L clove oil or to 50, 75, or 100L/L eugenol resulted in mean induction times 1min. Fish did not become fully sedated within 3min when treated with 25L/L clove oil. Other concentrations of both anesthetics, fish reached to full induction at 3min and recovered from anesthesia 5min. Our results showed the clove oil and eugenol are effective anesthetics for fingerling Shabut when used at concentrations of 50-100L/L. Received March 25, 2013; accepted July 5, 2013
AtıfWoS10OpenAlex14İncele - BildiriYalnız künye2014Scopus SJRQ2An organic-inorganic rectifying contact based on a ZnPc derivative
Ozerden, Enise; Yildiz, Mustafa; Ocak, Yusuf Selim; Tombak, Ahmet; Kilicoglu, Tahsin
An organic-inorganic rectifying contact was fabricated by forming a thin film of a Zinc Phthalocyanine (ZnPc) derivative, Zinc 2,3,9,10,16,17,23,24-octakis(octyloxy)-29H, 31H-phthalocyanine (oc-ZnPc), on a p-Si wafer and evaporating Al on the structure. The current-voltage (I-V) and capacitance-voltage (C-V) measurements of Al/oc-ZnPc/p-Si structure were taken in dark at room temperature. The I-V measurements proved that the structure showed excellent rectification. Some basic diode parameters like ideality factor and barrier height were calculated from lnI-V plot. Ideality factor and barrier height values were found as 144 and 0.78 eV, respectively. The series resistance value of the structure was determined as 5.46 k Omega by means of Norde functions. The C-V measurements were taken for various frequencies and it was seen that the capacitance value decreased with increasing frequency. In addition I-V measurements of the Al/oc-ZaPc/p-Si/Al were repeated under light which had illumination intensity of 40-100 mW/cm(2). It was observed that reverse bias current of the diode increased with the light intensity. Therefore, the structure showed photodiode characteristics and it can be used for electrical and optoelectronic applications. (C) 2014 Elsevier Ltd. All rights reserved.
AtıfWoS10OpenAlex12İncele - MakaleAçık Erişim2014Scopus SJRQ4Antimicrobial Activity of the Methanol Extracts and Essential Oil with the Composition of Endemic Origanum acutidens (Lamiaceae)
Gulec, Azime Kucukgul; Erecevit, Pinar; Yuce, Ebru; Arslan, Ali; Bagci, Eyup; Kirbag, Sevda
The chemical composition of hydro distilled essential oil from Origanum acutidens (Hand. and Mazz.) Ietswaart was collected from Tunceli (Turkey) were analyzed by GC and GC-MS. Essential oil and methanol extract of Origanum acutidens were tested against Yersinia ruckeri (ATCC 29473), Aeromonas hydrophila (ATCC 607920), Lactococcus garviae (ATCC 43921) Staphylococcus aureus (ATCC 29213) fish pathogenic bacterial strains. The analysis of the essential oil of Origanum acutidens showed the presence of 6 components accounting for 93.8 % of the total amount. Calvacrol (61.8 %), p-cymene (15.5 %) and thymol (12.7 %) that possessed antimicrobial activity were found as the major component. The final concentrations of the methanol extract and the essential oil were determined by using disk diffusion assay. Mean inhibition zones of bacterial strains for Origanum acutidens essential oil varied from 28.0 +/- 1.2 and 36.7 +/- 0.7 mm. The inhibition zones of methanol extract (10 mu L and 20 mu L) of Origanum acutidens against bacterial strains were in the range 8.7 +/- 0.7 - 11.0 +/- 0.6 mm and 12.7 +/- 0.67 - 22.7 +/- 1.3 mm, respectively. Our results suggest that both the methanol extract and the essential oil of Origanum acutidens may be valuable as potential antibacterial agents against the major fish pathogens.
AtıfWoS7OpenAlex12İncele - MakaleYalnız künye2013Scopus SJRQ3EFFECT OF THE PRESENCE OF PHOSPHATE BASED FERTILIZER ON METAL REMOVAL CAPACITY OF NATIVE BIORETENTION MATERIALS
Demir, Veysel; Bin-Shafique, Sazzad
Batch tests were conducted on several Texas native bioretention media to estimate the removal capacity of lead and copper from contaminated water and to understand the effect of the presence of phosphate (due to application of phosphate based fertilizers in the watershed) on metal removal. The results show that the 77% of lead and 58% of copper precipitated as the phosphate added to the contaminated water even before adding any media. Cedar mulch and hardwood mulch performed best and removed 99.2% of lead and 97.5% of copper from aqueous solution. When phosphate was added, removal increased to 97.8% for copper and 100% for lead (under detection limits). The removal capacity of metals was with the order of cedar mulch > hardwood mulch > pine mulch > sawdust > loam soil > silica sand. The leaching of metals from the media was much lower than the original solution and decreased when phosphate was added.
AtıfWoS2İncele - MakaleAçık Erişim2013Scopus SJRQ1Effect of Tween 20 on antibacterial effects of acidic, neutral and alkaline decontaminants on viability of Salmonella on chicken carcasses and survival in waste decontamination fluids
Dikici, Abdullah; Arslan, Ali; Yalcin, Halil; Ozdemir, Pinar; Aydin, Isil; Calicioglu, Mehmet
The effect of Tween 20 on antimicrobial effects of acidic (lactic acid), neutral (cetyl pyridinium chloride) and alkaline (trisodium phosphate) decontaminants to reduce the numbers of Salmonella inoculated to broiler carcasses were studied. In addition, survival of Salmonella in waste decontamination fluids was investigated. For this purpose, an average of 7 +/- 1 log(10) cfu/ml Salmonella Enteritidis and Salmonella Typhimurium cocktail was surface-inoculated on to a total of 110 broiler carcasses. Contaminated carcasses were immersed in to tap water (control), lactic acid (LA) (1-2%), cetyl pyridinium chloride (CPC) (0.5-1%), or trisodium phosphate (TSP) (8%) and the combinations of these treatments with Tween 20 (TW20) (0.5%) for 15 min. Results indicated that. Salmonella numbers significantly decreased (P < 0.05) in all groups, except control and 1% LA. No significant difference was found between treatments with and without TW20. In waste decontamination fluids, 6.68 and 3.41 log(10) cfu/ml of Salmonella were recovered from control and CPC groups, respectively, while no viable Salmonella cell was detected in LA and TSP groups by direct plating. It was concluded that regardless of TW20, the antimicrobials tested were effective to reduce Salmonella in poultry carcasses. However, the pathogen may survive in neutral waste decontamination fluid such as CPC and can pose a risk for consumer health by contaminating the plant environment. (c) 2012 Elsevier Ltd. All rights reserved.
AtıfWoS11OpenAlex14İncele - MakaleYalnız künye2013Scopus SJRQ2Amine-modified maleic anhydride containing terpolymers for the adsorption of uranyl ion in aqueous solutions
Simsek, Selcuk; Yilmaz, Ersen; Boztug, Ali
Maleic anhydride-styrene-methyl methacrylate (MA-S-MM) terpolymer was prepared. It was modified by ethylenediamine (EDA) and diethylenetriamine (DETA) in order to get cross-linked polymers bearing carboxyl and amine groups. Modified polymers used as an adsorbent for the removal of UO2 (2+) from water. The characterizations of structures of all the polymers were performed by Fourier transform infrared. The adsorptive features of adsorbents were then investigated for UO2 (2+) in view of dependency on ion concentration, pH, temperature and kinetics. Experimentally obtained isotherms were evaluated with reference to Langmuir, Freundlich and Dubinin-Radushkevich models. The maximum monolayer adsorption capacity for UO2 (2+) was found to be 1.59 and 2.43 mol kg(-1) for EDA-MA-S-MM and DETA-MA-S-MM, respectively. It can be said that the new modified polymers prepared in our laboratory have been suggested as new adsorbents for uranyl ions.
AtıfWoS27İncele - MakaleYalnız künye2013Scopus SJRQ2Effect of Body Condition Score on Biochemical Milk Parameters having Economic Importance in Dairy Goat during the First Month of Postpartum Period
Cimen, Murat; Topcu, Hakan
The data were collected from 20 Turkish Saanen goats raised in Ismailli village of Tunceli Province during first four weeks of postpartum period. In the research, 10 goats having BCS 1 and 10 goats having BCS 2 were used. The dams in BCS 1 group had showed lower milk fat content as compared to dams in BCS 2 group until third week. The total solids and protein levels of goats did not differ between BCS 1 and BCS 2 groups during all weeks of research We found positive high correlations between total solids and protein (r=0.997; p<0.01) in BCS 1 group and BCS2 group (r=0.9998; p<0.01) Similar correlations were found for both BCS group in study. From our results, the lower BCS has negative significant influence on the milk fat synthesis for dams having low fat depots. (c) 2013 Friends Science Publishers
AtıfWoS7İncele - MakaleYalnız künye2013Scopus SJRQ3Determination of lethal concentration (LC50) values of Cinnamomum zeylanicum hydrosol on carp fish
Gulec, Kucukgul A.; Altinterim, B.; Aksu, O.
In this study, lethal concentration (LC50) values of cinnamon hydrosol (Cinnamomum zeylanicum) on carp (Cyprinus carpio) were investigated. In practice, experimental setup was constituted 30 fish (a total of 180 fish with 30 control fish) to be placed in three replicates. Hydrosol was added into aquariums at the doses of 0.5, 1, 2.5, 5 and 10% and determined mortality times of carp exposed to these concentrations. Percentage death of fish calculated in these concentrations. Mortality was observed at all treatments exception of dose of 0.5 %. The results indicate that the hydrosol had swimming changes, lethargy, lack of breath and leaning to the depth of the aquariums at all of the concentrations. The results of regression analysis indicated that the mortality rate (Y) is positively correlated the concentration (X) having a regression coefficient (R) close to one in each case. While the 1 h LC50 value (with 95% confidence limits) of the safe dose of C. zeylanicum hydrosol was estimated at LC50=4.39%, 2 h LC50 value=2.629%, and 12 h LC50 value= 1.027%.
AtıfWoS10İncele - MakaleAçık Erişim2013Scopus SJRQ4Occurrence and Assessment of Chemical Contaminants in Drinking Water in Tunceli, Turkey
Demir, Veysel; Ergin, Sezai
The objective of this study was to analyze drinking water samples from 21 sites in the city center and seven municipalities of Tunceli, Turkey, in order to determine the presence of nitrate, nitrite, fluoride, bromate, pesticides, polycyclic aromatic hydrocarbons (PAHs), trihalomethanes (THMs), and some other chemicals. In all locations, the concentrations of chemicals investigated were below the permissible limits set by local and international organizations for drinking water. Low levels of nitrate (4.79 +/- 4.20 mg/L), fluoride (0.11 +/- 0.08 mg/L), and THMs (6.63 +/- 5.14 mu g/L) were detected in all locations. A low level of tetra, chloroethane, which is suspected to be a human carcinogen, was also detected in 8 locations in the range of 0.26-0.43 mu g/L. These contaminants may pose adverse health effects or minimum hazard due to long-term exposure. In all locations, bromate, benzene, total PAH, 1-2 dichloroethane, vinyl chloride, acrylamide, and epichloridine levels in drinking water samples were under detection limits.
AtıfWoS9OpenAlex11İncele - MakaleAçık Erişim2013Scopus SJRQ4Adsorption of the 2,2-Dichlorovinylphosphate on Raw and Modified Bentonites
Yönten, Vahap; Kubilay, Senol
This study aims to investigate the adsorption of the 2,2-dichlorovinylphosphate (DDVP) on raw and modified bentonite via high pressure liquid chromatography and infrared spectroscopy. The modified bentonites were prepared by adding HNO3 and Na2CO3. The Freundlich adsorption isotherm defines 2,2-dichlorovinylphosphate adsorption in aqueous and aqueous ethanol solutions through raw and modified bentonite. Variables such as temperature, time and pH were observed on 2,2-dichlorovinylphosphate adsorption. Then the capacity for maximum 2,2-dichlorovinylphosphate adsorption was measured on modified bentonite with HNO3 under the conditions of pH 3 and 40 degrees C. The modified bentonite with Na2CO3 clay used in experimental work played a major role on the adsorption of 2,2-dichlorovinylphosphate; thus modified bentonite with Na2CO3 is considered to possess better characteristics than modified bentonite with HNO3 and raw bentonite. The Freundlich isotherms of modified bentonite with Na2CO3 in aqueous-ethanol solution were found to be better than isotherms of aqueous solution for a much better 2,2-dichlorovinylphosphate adsorption.
AtıfOpenAlex1İncele - MakaleAçık Erişim2013Scopus SJRQ3Leslie Population Estimation for Turkish Crayfish (Astacus leptodactylus Esch., 1823) in the Keban Dam Lake, Turkey
Yüksel, Fahrettin; Demirol, Ferhat; Gündüz, Fatih
The population size was researched by using Leslie method on the zones of Keban Dam Lake where crayfish is fished for commercial purposes. The data were compiled by using effort expended and catch obtained by 28 fishing boats during 2012 crayfish fishing season. 28 fishing boats fished 16,867 kilograms of crayfish during the fishing season by using 45,600 pieces of crayfish fyke nets. It is determined that the quantity catch per unit effort (CPUE) varies between 2.74 to 6.35 kg/100 fyke nets/week during the 9 weeks fishing period. The population size at the beginning was estimated to be 28,450 kg (at minimum legal length of >= 10 cm). The 95% confidence interval of this estimation was calculated to be 25,607-32,533 kg. Similar researches on crayfish populations concluded that removal method can offer very important details.
AtıfWoS11OpenAlex13İncele - MakaleYalnız künye2013Scopus SJRQ3EVALUATION OF ANTIOXIDANT PROPERTIES, ELEMENTAL AND PHENOLIC CONTENTS COMPOSITION OF WILD NETTLE (Urtica dioica L.) FROM TUNCELI IN TURKEY
Yildirim, N. C.; Turkoglu, S.; Ince, O. K.; Ince, M.
Wild nettle (Urtica dioica L.) types were sampled from different geographical regions in Tunceli (Turkey) to determine their mineral, vitamin, phenolic contents and their antioxidant properties. The total phenol varied from 37.419 +/- 0.380 to 19.182 +/- 1.00 mg of GAEs g(-1) of dry nettle. The highest radical scavenging effect was observed in Mazgirt parting of the ways 7.5 km with 33.70 +/- 0.849 mg mL(-1). The highest reducing power was observed in the nettles from Mazgirt parting of the ways 7.5 km. Among the various macronutrients estimated in the plant samples, potassium was present in the highest quantity followed by calcium and phosphate. Kaempferol and resveratrol were not determined in some nettle samples but rutin levels were determined in all samples. Vitamin A concentrations were ranged between 13.64 +/- 1.90 and 5.74 +/- 1.00 (mg kg(-1) dry weight). These results show that Urtica dioica L. collected from Tunceli in Turkey could be considered as a natural alternative source for food, pharmacology and medicine sectors.
AtıfWoS11İncele - MakaleYalnız künye2013Scopus SJRQ1Geo-environmental site investigation for Tunceli, Turkey municipal solid waste disposal site
Önal, Ayten Oztufekci; Demirbilek, Deniz; Demir, Veysel
The environmental and geological condition of a current solid waste disposal site in the city of Tunceli, Turkey was investigated. Improper geological structure and soil properties of this unsanitary solid waste storage site as well as leachate from this site caused significant pollution in air, soil, and surface water. Natural soil characteristics and geology of the site are presented in this paper. Petrographic properties of vulcanized rubber rocks composed of tuff and volcanic sandstone at the bottom of storage sites and the mineralogical composition of the base composed of these rocks were examined. Permeability of the natural soil and index properties were determined using soil mechanics experiments (moisture content, specific gravity, Atterberg limit tests, sieve analysis, hydrometer analysis, falling-head permeability test, and standard proctor test) conducted on disturbed samples collected from excavated sites and the relationship between mineralogical composition and soil hydraulic behavior was investigated. Natural soil samples of six different parts of the site indicated that, the soil class in four samples is silty sands, sand-silt mixtures, one is clayey sands, sand-clay mixtures and one is clayey silts with slight plasticity. The values obtained using permeability tests for subsoil samples vary from 10(-5) to 10(-8) cm/s. Low permeability (10(-7) and 10(-8) cm/s) at the south part of the site increases to 10(-5) cm/s at the natural soil of the North side. Extensively faulted and fissured volcanic sandstone levels at the site give potential to waste leachate to reach deep levels. The soil composition, hydraulic conductivity, topographic conditions, and other location criteria in the current solid waste disposal site showed that the current disposal site is not suitable for this purpose. (C) 2013 Elsevier B.V. All rights reserved.
AtıfWoS5OpenAlex6İncele