Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Uzun, Sevda(64)
- Merdan, Mehmet(47)
- Baltaci, Cemalettin(35)
- Kulakaç, Nurşen(28)
- Duran, Celal(27)
- Ozdes, Duygu(24)
- Turan, Ibrahim(24)
- Demir, Selim(23)
- Türkkan, Tuğba(22)
- Bayrakdaroglu, Serdar(21)
- Topal, Fevzi(21)
- Öztürk, Serkan(21)
- Ürkek, Bayram(21)
- Gücer, Mehmet Ali(20)
- Akar, Zeynep(19)
- Kaygusuz, Abdullah(19)
- Topal, Meryem(19)
- Anaç, Halil(18)
- Aydin, Aydanur(18)
- Batan, Nevzat(18)
- Erata, Hüseyin(18)
- Tuncer, Metin(18)
- Akyürek, Suat(17)
- Baltacı, Cemalettin(17)
- Karimullah, Suud Sarim(17)
- Acet, Tuba(16)
- Akar, Bülent(16)
- Ashyralyyev, Charyyar(16)
- Düzgün, Azer Özad(16)
- Hintistan, Sevilay(16)
- Yılmaz, Coşkun(16)
- Aliyazicioglu, Yuksel(15)
- Kaya, Hacer(15)
- Kurnaz, Muammer(15)
- Kurt, Kemal(15)
- Ozden, Talat(15)
- Yilmaz, Coskun(15)
- Yuksel, Ferhat(15)
- Yücel, Cem(15)
- Öz, Mehmet(15)
Yayınlar
- BildiriAçık Erişim2019Firm Selection Based on Logistics Risk Factors: A Multiple Criteria Decision Making Approach
Peker, Iskender; Korucuk, Selcuk; Baki, Birdogan
Logistics firms are exposed several domestic and global risks such as variability in demand, shipment damages, earthquakes, and terrorist attacks. The purpose of this study is to provide an approach for selecting a logistics firm based on logistics risk factors according to the manufacturing firms' perspectives. An analytical network process method is utilized to determine risk factors' importance levels and VIKOR method is used to select the logistics firm. The study results show that the most important logistics risk factors are customer and supplier, and the least risky logistic firm is B. It can be concluded that the proposed model enables managers to examine potential risks influencing their logistics activities and select the logistics firm having minimum risk.
- Derleme MakaleAçık Erişim2019Scopus SJRQ4A Review Study on the Using of Diethyl Ether in Diesel Engines: Effects on CO2 Emissions
Sezer, İsmet
Vehicle and other fuel combustion emissions can change the composition of the atmosphere, increasing its ability to trap heat. Gases that are effective in trapping heat are called greenhouse gases and include all of the gases in vehicle emissions. The major component of greenhouse gases emissions is carbon dioxide (CO2). Reduction of CO2 emissions has become a concern worldwide. Introduction of biofuels to fueling of automotive engines is the one method to decrease emissions of greenhouse gases. The CO2 from biofuels, is emitted during combustion and absorbed during growth of tree end plants. These biofuels can be applied as blends or sole fuels. The most researches declare that the best way to reduce greenhouse emissions is the use of various biofuels. Therefore, it is very important that the results of various studies on alternative fuels or fuel additives are evaluated together to practice applications. On the other hand, diesel cars are also helping to reduce CO2 emissions. For these reasons, this study especially focuses on the use diethyl ether in diesel engines as fuel or fuel additive in various diesel engine fuels. This review study investigates the effects of diethyl ether addition on the CO2 emissions.
AtıfScopus5WoS7OpenAlex7TR Dizin2
İncele - MakaleAçık Erişim2019Scopus SJRQ3The effect of interest rate on output level and inflation in Turkey: Evaluation of monetarist and new keynesian perspective
Akbas, Yusuf Ekrem; Sancar, Canan
In this paper, the relationship between inflation-interest rate and output level for the period between 2000M1-2015M12 in Turkey is evaluated in terms of Monetarist and New Keynesian perspective. These relationships among the variables are analysed through linear and non-linear methods. As a result of the analysis, it is concluded that the interest rate does not have a significant effect on the output level. Also, it was determined that there is a short-term as well as a long-term negative relationship from the interest rate towards inflation. It was concluded that the monetary policy cannot affect the real output, but the inflation. These results show that the Monetarist perspective is more valid for the post 2000 period in Turkey.
AtıfScopus3WoS2OpenAlex3İncele - MakaleAçık Erişim2019Scopus SJRQ1Petrology and 40Ar-39Ar dating of paragneisses from the Devrekani Massif (Central Pontides, Northern Turkey): Implications for the Jurassic high-T metamorphism in an extensional tectonic environment
Gücer, Mehmet Ali; Arslan, Mehmet; Çimen, Okay; Sherlock, Sarah C.
The Devrekani Massif in the northern part of the Central Pontides (Northern Turkey) provides important clues to the regional tectonics and geodynamic processes associated with Jurassic high grade metamorphic conditions. This study reports new paragenetic assemblages, mineral compositions, whole-rock geochemistry and 40Ar-39Ar geochronological data from the paragneisses in the massif, and, discusses the P–T conditions and geodynamic implications of the Jurassic metamorphism during continental extension in the Central Pontides. Upper amphibolite to lower granulite facies paragneisses form one of the main lithological units in the massif. Within these, there are five different mineral parageneses with diagnostic mineral assemblages of: quartz, K-feldspar (An0-1Ab4-26Or73-96), plagioclase (An18-35), biotite [XPhl: 0.28–0.57; Mg/(Mg + Fe2+): 0.33–0.61], sillimanite, cordierite [Mg/(Mg + Fe2+): 0.48–0.71] and garnet (Alm43-80Grs0-18Prp5-23And0-4Sps10-33) with minor hercynite. Based on Na-in-Crd thermometry and GASP barometry results, the peak metamorphic conditions are 775 ± 25 °C and 6 ± 1 kbar in the massif. The field relations, petrography and bulk chemical data suggest that the paragneisses, derived from shale-wackestone and pelitic sedimentary protoliths, are typical rock lithologies of an active continental margin. They display enrichments in LILE over HFSE, coupled with negative Nb and Ti anomalies, which are geochemical signatures of subduction-related sources. It is likely that the peak metamorphism took place during the Middle–Upper Jurassic period (ca. 174–156 Ma), suggesting that the metamorphic rocks cooled to 300–350 °C at ca. 156 Ma. The mineral assemblages reveal that the prograde history passed from sillimanite zone conditions up to the cordierite-garnet-K-feldspar zone. The petrological and geochronological data indicate that the protoliths are related to multiple sources such as volcano-sedimentary successions. We conclude that the Devrekani Massif represents the products of pre-Jurassic sedimentation, and Permo-Carboniferous continental arc magmatism, overprinted by Jurassic metamorphism.
AtıfScopus9WoS10OpenAlex6İncele - MakaleAçık Erişim2019Scopus SJRQ3Reduced Akkermansia muciniphila and Faecalibacterium prausnitzii levels in the gut microbiota of children with allergic asthma
Demirci, M.; Tokman, H.B.; Uysal, H.K.; Demiryas, S.; Karakullukcu, A.; Saribas, S.; Cokugras, H.; Kocazeybek, B.S.
Introduction and objectives: The amounts of Akkermansia muciniphila and Faecalibacterium prausnitzii in gut microbiota are reduced in patients with allergic diseases compared to healthy controls. We aimed to quantify levels of A. muciniphila and F. prausnitzii amounts using real-time quantitative PCR (qPCR) in the gut microbiota of children with allergic asthma and in healthy controls. Materials and methods: In total, 92 children between the ages of three and eight who were diagnosed with asthma and 88 healthy children were included in the study and bacterial DNA was isolated from the stool samples using the stool DNA isolation Kit. qPCR assays were studied with the microbial DNA qPCR Kit for A. muciniphila and microbial DNA qPCR Kit for F. prausnitzii. Results: Both bacterial species showed a reduction in the patient group compared to healthy controls. A. muciniphila and F. prausnitzii were found to be 5.45 ± 0.004, 6.74 ± 0.01 and 5.71 ± 0.002, 7.28 ± 0.009 in the stool samples of the asthma and healthy control groups, respectively. Conclusions: F. prausnitzii and A. muciniphila may have induced anti-inflammatory cytokine IL-10 and prevented the secretion of pro-inflammatory cytokines like IL-12. These findings suggest that A. muciniphila and F. prausnitzii may suppress inflammation through its secreted metabolites.
AtıfScopus143WoS133OpenAlex149
İncele - BildiriAçık Erişim2019Numerical solution of Neumann type elliptic overdetermined multipoint mixed boundary value problem
Ashyralyyev, Charyyar; Karabey, Suzan; Cakalli, H.; Kocinac, L.D.R.; Harte, R.; Cavalcanti, V.N.D.; Ashyralyev, A.; Sakalli, I.; Canak, I.; Gurtug, O.
In the present paper, Neumann type elliptic overdetermined multipoint boundary value problem is discussed. The first and second order of accuracy difference schemes (ADSs) for the numerical solution of elliptic overdetermined multipoint boundary value problems are presented. Stability estimates for solutions of difference schemes are obtained. Numerical results for mixed boundary value problem are given.
- MakaleAçık Erişim2019Scopus SJRQ2Preliminary investigations on two different procedures to calculate the efficiency and performance ratio of PV modules
Ozden, T.; Akinoglu, B.G.
Short- and long-term outdoor performances of the photovoltaic (PV) modules are extremely important in reaching their economic viabilities. Such information is very valuable for the investors, customers and researchers of PV technologies. Two different procedures are possible, and both are used by many researchers. However, to the best of our knowledge, there is no comparative investigation to evaluate these two procedures. One of the methods uses instantaneous I–V curves of PV modules taken in a specified instant of time, while the others simply use the integrated energy values of the input and the yield of PV modules. In fact, both have advantages and disadvantages. In the present work, we outlined the advantages and disadvantages of both methods and compared them using the data of two different cell-type modules which are installed at GÜNAM’s outdoor test facility. In the analysis, the data that we used are taken under the same outdoor test conditions and ambient weather conditions. The outcomes of these preliminary analyses can be summarized as follows: (1) The procedure that uses instantaneous I–V curves seems dependent on the specified time intervals and ambient weather conditions at that instant; (2) accordingly, we will propose how to determine an optimal time interval to reach better performance results; (3) using the integrated values, we achieved the variations in performances with different integration time periods; (4) preliminary comparisons of these two procedures resulted in key conclusions on performance and degradation calculations of PV modules.
AtıfScopus4WoS2OpenAlex4İncele - Kitap BölümüAçık Erişim2019Ore Mineralogical Study of Cerattepe Au-Cu (±Zn) VMS Deposit (Artvin-Turkey)
Akpınar, I.; Çiftçi, E.; Glagolev, S
The Cerattepe mine, one of the volcanogenic massive sulfide deposits in northeastern Turkey, is hosted within the late Cretaceous volcanic, intrusive and sedimentary rocks. Deposit’s main ore body contains high-grade massive copper sulfides and a gold-silver and barium rich oxide zone, characterized by dense alteration stages, is situated on top of it. Replacement, cataclastic, breccia, dissemination, dendritic, concentric growth, colloform, and framboidal textures were identified. Pyrite, sphalerite, marcasite, chalcopyrite, bornite, galena, tennantite-tetrahedrite, gold, covellite, digenite, chalcocite, cuprite and cubanite constitute the mineral paragenesis where quartz, calcite and barite account for the gangue minerals. Limonite, hematite, lepidocrocite, malachite, azurite and jarosite developed in the oxidation zone.
AtıfScopus3WoS4OpenAlex4İncele - MakaleAçık Erişim2019Scopus SJRQ3Is there prejudice against obese persons among health professionals? A sample of student nurses and registered nurses
Yılmaz, Hacı Ömer; Yabancı Ayhan, Nurcan
Purpose: The aim of this study was to assess whether there is prejudice toward obese persons among student nurses and registered nurses. Design and Method: A total of 379 participants were included (190 student nurses, 189 registered nurses). The Fat Phobia Scale and Belief About Obese Persons Scale were used to determine the prejudice. Findings: Registered nurses were found to have more negative prejudices toward obese persons than those of student nurses. These prejudices were determined to be influenced by the nurses' body mass index and having an obese person in the family. Practical Implications: Both groups had negative prejudices toward obese persons, there was a higher level of prejudice among the registered nurses. These prejudices can have a negative impact on healthcare practices.
AtıfScopus21WoS20OpenAlex26İncele - MakaleAçık Erişim2019Scopus SJRQ2Effect of pH on protein extraction from sour cherry kernels and functional properties of resulting protein concentrate
Çelik, Mehtap; Güzel, Melih; Yildirim, Metin
The aims of this research were to examine the effect of pH on extraction of proteins from sour cherry (Prunus cerasus L.) kernels, and to investigate the functional properties of the resulting protein concentrate. The optimum pH values for the protein extraction and isoelectric precipitation were determined as 10.0 and 4.5, respectively. The protein concentrate contained 4.03 ± 0.16% moisture, 3.31 ± 0.17% ash, 2.94 ± 0.36% carbohydrate, 1.93 ± 0.16% lipid, and 80.48 ± 2.38% protein. Water holding capacity, oil holding capacity and the least gelling concentration of the protein concentrate were 2.42 ± 0.09 g water/g, 1.73 ± 0.17 g oil/g and 8%, respectively. Results showed that emulsifying activity and stability indices, foaming capacity and stability of protein concentrate were 38.91 ± 2.50 m2/g, 37.49 ± 2.41 min, 35.00 ± 3.54% and 71.80 ± 7.25% (after 30 min), respectively. The functional and chemical properties of the protein concentrate indicate that it may find application as functional ingredient for various food products.
AtıfScopus45WoS41OpenAlex45İncele - MakaleAçık Erişim2019Scopus SJRQ2Effects of pavement surface deformations on traffic flow
Aydin, Metin Mutlu; Topal, Ali
Pavement surface deformations have a significant effect on speed profile of vehicles and traffic flow conditions. These deformations limit driving properties and increase vehicle operation and maintenance costs. Additionally, they cause many problems such as accidents, slower movement speeds, capacity loss and severe discomfort states. There are many factors having an effect on road capacities and they vary according to different road and traffic flow conditions. In this study, it is aimed to investigate and develop models to estimate shockwave and bottleneck forming, capacity loss and speed reduction, which occurred on examined road links caused by pavement deformations. For the prediction of road capacity, flow–density (q–k) relationship, bottleneck and shockwave analysis methods were used. In the scope this study, deformed road links were divided into three sections; Section A – before deformation zone, Section B – deformation zone, and Section C – after deformation zone. All three sections were investigated and empirical results were obtained. According to analysis results, it was found that pavement surface deformations have a negative effect on the level of road service capa-bility. Obtained results also showed that there are significant reductions in capacity relatively by up to 44 and 26% would result from surface deformations on deformed lanes and non-deformed adjacent lanes.
AtıfScopus12WoS10OpenAlex14İncele - MakaleAçık Erişim2019Scopus SJRQ2The impact of economic globalization on CO2 emissions: The case of NAFTA countries
Kalaycı, Cemalettin; Hayaloğlu, Pınar
International trade with the economic globalization gaining wide currency has brought along the environmental problems. Transition to environment-friendly high-tech products and schemes in developed countries alleviated the impacts of these problems whereas underdeveloped environmental standards in developing countries still cause deterioration in the environmental quality. For this reason, there are different views on the environmental impacts of globalization. The study investigates the impact of globalization and trade openness on CO2 emissions with reference to the NAFTA countries. Employing panel-data analysis, the study relies on the annual data for a period of 1990–2015. The findings reveal that there is a positive relationship between economic globalization and trade openness, and CO2 emissions. The study further tests the validity of Environmental Kuznets Curve for the target countries. To this end, the research identifies a positive-direction relationship in both linear and square forms between CO2 emissions and economic growth.
AtıfScopus105OpenAlex53İncele - MakaleAçık Erişim2019Physicochemical, Textural, Cooking and Sensory Properties of Traditional Turkish Homemade Noodle Enriched with Apple Fiber; [Elma Lifi ile Zenginleştirilmiş Geleneksel Türk Ev Yapımı Eriştelerin Fizikokimyasal, Tekstürel, Pişme ve Duyusal Özellikleri]
Yuksel, Ferhat; Gurbuz, Melek
The aim of this study is to determine some physicochemical, textural, cooking and sensory characteristics of traditional Turkish homemade noodles enriched with apple fiber. Apple fiber was incorporated into the noodle dough formulation at three different concentrations (5, 10 and 20%). Dry matter contents of the samples were in the range of 91.80-92.93% and an increase in dry matter with the addition of apple fiber was determined. Protein contents of the samples were in the range of 8.817-9.909 % and decreased significantly (p<0.05) with the addition of apple fiber. Firmness value was determined to be 33.81 kg in the noodle sample enriched with 20% apple fiber while the firmness value of un-enriched one was 23.09 kg. Color characteristics were significantly affected from the apple fiber concentration (p<0.05). Generally, cooking properties of the samples increased significantly in the noodles with the enrichment of apple fiber (p<0.05). No significant difference was determined for the overall acceptability of samples (p>0.05). Results indicated that innovative noodles could be produced by using apple fiber.
AtıfScopus4OpenAlex4TR Dizin2İncele - MakaleAçık Erişim2019Scopus SJRQ3Complementary and alternative treatment methods for menopausal hot flashes used in Turkey
Ozcan, Handan; Çolak, Pınar; Oturgan, Berna; Gülsever, Esra
Objective: Study was planned to determine complementary and alternative treatment methods for menopausal hot flashes. Methods: Women who reported their discomfort of hot flashes as a degree of discomfort of 4 or more according to the Visual Analogue Scale (VAS) were included in the study (n:356). In data collection, Questionnaire Form and Complementary and Alternative Medicine Approaches Scale were used. Results: The average age of the women was 56.65±6.05 and the average age of menopause was 46.39±5.25. According to VAS, the average severity of hot flashes was 7.85±1.83. Women with obesity and any chronic disease were more likely to have hot flashes. It was determined that 73.6% of women in the menopausal period were using Complementary and Alternative Medicine (CAM). It was determined that women were using herbal supplements, dietary supplements, mind-body practices and religious practices against the discomfort of hot flashes. 72% of women using CAM stated that the method used was effective. Conclusions: Women who use CAM usually use it with information that is out of the knowledge of health profession and lack of information. It is recommended to carry out extensive studies for CAM methods and the mechanisms of action that women use.
AtıfScopus13WoS12İncele - MakaleAçık Erişim2019Scopus SJRQ2Determination of the wear performance of diamond saw blades using inductively coupled plasma
Inal, Serkan; Erkan, Ilker; Aydiner, Kerim
Saw blades are one of the most used cutting tools. They compose the expensive parts of a cutting machine. Therefore, saw-blade wear is an important parameter governing the economy of the cutting process. Significant savings could be made when it is controlled effectively. In this study, a new methodology is employed for the determination of the saw-blade wear in the cutting of two types of marble. Wear of segments is determined by high-precision inductively coupled plasma method. Two types of marbles were used to investigate the wear performance of diamond-impregnated segments of circular saw-blade matrix. Taguchi mixed design L16 (43 21) is used as an experimental design and the results are evaluated statistically with Minitab. The results reveal that the specific wear rate (SWR) of Beige marble increases with the increase of the peripheral speed, traverse speed, depth of cut and down-cut mode operation. Additionally, it is demonstrated that the traverse speed and peripheral speed are the dominant cutting parameters affecting the SWR. It is also seen that similar trends are observed for Onyx marble (excluding peripheral speed). Finally, it is concluded that the proposed models can be effectively used for the estimation of the SWR.
AtıfScopus4WoS2OpenAlex6İncele - MakaleAçık Erişim2019Scopus SJRQ2Volatile constituents and biological properties of essential oils from aerial parts of Gentiana gelida BIEB
Üçüncü, Osman; Karataş, Şeyda Merve; Baltacı, Cemalettin; Karaköse, Mustafa; Türkuçar, Semra Alkan
This work reports the chemical composition, antimicrobial and antioxidant activities of essential oils from the aerial parts of Gentiana gelida BIEB. for the first time in literature. The oils from the aerial parts (flower, leaf and stem) were obtained by Clevenger-type apparatus and characterized by GC-FID and GC-MS. While tricosane (21.67%) was the main component of flower oil, hexadecanoic acid was the most abundant component of leaf and stem oils in ratios 26.46% and 31.89%, respectively. Additionally, all essential oils of G. gelida were investigated for their antimicrobial activity against eight Gram negative bacteria, four Gram positive bacteria and five fungi, using agar dilution method and antioxidant activities by using 2,2-diphenyl-1-picrylhydrazyl radical scavenging and Folin-Ciocalteu assays. The flower oil of G. gelida showed stronger antimicrobial and antioxidant activities than those of stem and leaf. The amount of total phenolic content and scavenging activity of the flower oil were found 525.35±8.24 mg GAE/L and 49.30±1.25%, respectively.
AtıfScopus5WoS4OpenAlex4İncele - MakaleAçık Erişim2019Scopus SJRQ3Determination of antibiotic resistance genes and virulence factors in Escherichia coli isolated from Turkish patients with urinary tract infection
Özad Düzgün, Azer; Okumuş, Funda; Saral, Ayşegül; Çopur Çiçek, Ayşegül; Cinemre, Sedanur
Introduction: Escherichia coli ranks among the most common sources of urinary tract infections (UTI). Methods: Between November 2015 and August 2016, 90 isolates of E. coli were isolated from patients at Rize Education and Research Hospital in Turkey. Antibiotic susceptibility was determined for all isolates using the Kirby-Bauer disk diffusion method. These E. coli isolates were also screened for virulence genes, β-lactamase coding genes, quinolone resistance genes, and class 1 integrons by PCR. Results: With respect to the antibiotic resistance profile, imipenem and meropenem were effective against 98% and 90% of isolates, respectively. A high percentage of the isolates showed resistance against β lactam/β lactamase inhibitor combinations, quinolones, and cephalosporins. PCR results revealed that 63% (57/90) of the strains carried class 1 integrons. In addition, a high predominance of extended-spectrum β-lactamases (ESBLs) was observed. The qnrA, qnrB, and qnrS genes were found in 24 (26.6%), 6 (6.6%), and 3 (3.3%), isolates, respectively. The most common virulence gene was fim (82.2%).The afa, hly, and cnf1 genes were detected in 16.6%, 16.6%, and 3.3% of isolates, respectively. Moreover, we observed eleven different virulence patterns in the 90 E. coli isolates. The most prevalent pattern was fim, while hly-fim, afa-aer-cnf-fim, aer-cnf, afa-aer, and afacnf- fim patterns were less common. Conclusions: Most of the E. coli virulence genes investigated in this study were observed in E. coli isolates from UTI patients. Virulence genes are very important for the establishment and maintenance of infection.
AtıfScopus28WoS19OpenAlex34İncele - MakaleAçık Erişim2019Scopus SJRQ4Rafalskia azizsancari sp. n., a new harvestman (Opiiiones: Phaiangiidae) from Turkey
Kurt, Kemal; Yaǧmur, Ersen Aydin; Tezcan, Erman
A new harvestman species, Rafalskia azizsancari sp. n., is described and illustrated based on male specimens collected from Bozdaglar Mountains, Izmir Province, Turkey. Most important differences between the new species and the three other species of the genus are included.
AtıfScopus4WoS3OpenAlex4İncele - MakaleAçık Erişim2019Scopus SJRQ2Effect of pH on Protein Extraction from Mahaleb Kernels and Functional Properties of Resulting Protein Concentrate
Güzel, Melih; Çelik, Mehtap; Yildirim, Metin
The aims of this research were to examine the effect of pH on extraction of proteins from mahaleb (Prunus mahaleb L.) kernels, and to investigate the functional properties of resulting protein concentrate. The optimum pH values for the protein extraction and precipitation were determined as 10.0 and 4.5, respectively. The protein concentrate containing 92.73% dry matter, 6.29% ash, 6.02% carbohydrate, 1.42% fat and 73.11% protein was produced by using these extraction and precipitation pH values. Water-holding capacity, oil-holding capacity and the least gelling concentration of the protein concentrate were 2.81 g water/g, 1.66 g oil/g and 12%, respectively. Moreover, emulsifying activity and stability indices, foaming capacity and stability of protein concentrate were 27.21 m2/g, 81.05 min, 43.75% and 71.33% (after 30 min), respectively. The functional and chemical properties of the protein concentrate indicate that it may find application as functional ingredient for various food products.
AtıfScopus9WoS8OpenAlex7İncele - MakaleAçık Erişim2019Scopus SJRQ4Presence of different bacterial species in thermal sources and novelty in their industrial enzyme productions
Albayrak, Seyda; Genc, Berna; Ozkan, Hakan; Taskin, Mesut; Adiguzel, Ahmet
In this study, one hundred and thirty isolates were isolated from water and sludge samples taken from hot springs located in different regions of Turkey. Among them, eleven isolates were chosen according to conventional (morphological, physiological and biochemical tests) and molecular methods (rep-PCR and 16S rRNA sequencing). These bacteria were then tested for their capability to produce valuable enzymes. As a result; species belonging to Bacillus, Anoxybacillus, Aeribacillus, Enterococcus, Exiguobacterium and Paenibacillus were identified. Test strains were found to have optimum reproductive potential at pH 5.0-9.0 and 15-65°C, usually at a concentration of 1.0-10.0% (w/v) NaCl. In addition, all thermotolerant bacteria were Gram, endospore (except E. profundum), catalase and oxidase (except E. faecium and E. profundum) positive, and rod-shaped (except E. faecium). It was observed that all isolates had a 99% similarity percentage as a result of 16S rRNA sequence analysis. All of the isolates were capable of producing industrially important enzymes moreover, eight of them could produce at least two of these enzymes. Test strains had high potential of industrial enzyme production, and the enzymes from these thermo-tolerant isolates will be widely used in biotechnological processes.
AtıfScopus7WoS7OpenAlex7İncele