Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Baskonus, Haci Mehmet(4)
- Bulut, Hasan(4)
- Bagci, Eyup(3)
- Yuce, Ebru(3)
- Andaç, O.(2)
- Cakilcioglu, U.(2)
- Karadag, A.(2)
- Korkmaz, S. Aslan(2)
- Akev, Nuriye(1)
- Aksoy-Sagirli, Pinar(1)
- Aktas, Esra(1)
- Al-Shamary, Adel Kadum Jassim(1)
- Alp-Kavlo, Hevidar(1)
- Altiparmak-Ulbegi, Gulsum(1)
- Arcan, Gulsah Gamze(1)
- Arikan, Volkan(1)
- Arslan, Ali(1)
- Aydin, Caglar Mert(1)
- Bagci, E.(1)
- Baldemir, Ayse(1)
- Baser, Birol(1)
- Benzer, Fulya(1)
- Boztug, Durmus(1)
- Can, Ayse(1)
- Celik, Sait(1)
- Dal, M.(1)
- Dikici, Abdullah(1)
- Dogan, Akar(1)
- Dogan, Tolga(1)
- Erdemoglu, Murat(1)
- Erecevit, Pinar(1)
- Erüst, Ceren(1)
- Gulec, Azime Kucukgul(1)
- Gürbüz, N.(1)
- Güven, Alper(1)
- Hanedan, Basak(1)
- Hayta, S.(1)
- Hayta, Sukru(1)
- Inanan, B. E.(1)
- Kafkas, Salih(1)
Yayınlar
- MakaleYalnız künye2026Scopus SJRQ2An integrated process for rare earth elements recovery and silica production from Turkish bauxite-related ores
Uysal, Turan; Erüst, Ceren; Erdemoglu, Murat; Sis, Hikmet
The evaluation of bauxite-associated shales as a secondary source of rare earth elements (REEs) is strategically important for securing a sustainable supply of critical raw materials used in advanced technologies. In this study, shale ore associated with bauxite, unsuitable for aluminium production due to its high silica content, was investigated as a potential resource for valuable REEs. The effect of thermal activation on REE recovery was examined, and the potential use of the leach residue as a silica source was assessed. Based on acid leaching results, the optimum calcination temperature was identified as 700 degrees C. Under these conditions, high REE recoveries were achieved: 92.9% La, 89.9% Ce, 89.0% Pr, 88.7% Nd, and 73.0% Sm. After leaching, the residue was enriched in alumina and silica. To improve silica purity and recover remaining REEs and Al, a second-stage leaching process was applied. This resulted in a byproduct containing 55% SiO2 with a specific surface area of 48 m2 g-1, indicating its potential as a silica source. The results demonstrate that bauxite-associated shale can be sustainably valorised through intensive milling, calcination, and acid leaching, enabling efficient REE recovery and the production of a silica-rich byproduct. L'& eacute;valuation de schistes associ & eacute;s & agrave; la bauxite comme source secondaire d'& eacute;l & eacute;ments de terres rares (ETR) est strat & eacute;giquement importante pour garantir un approvisionnement durable en mati & egrave;res premi & egrave;res critiques utilis & eacute;es dans les technologies avanc & eacute;es. Dans cette & eacute;tude, on a examin & eacute; le minerai de schiste associ & eacute; & agrave; la bauxite, inappropri & eacute; & agrave; la production d'aluminium en raison de sa teneur & eacute;lev & eacute;e en silice, comme ressource potentielle d'ETR pr & eacute;cieux. On a examin & eacute; l'influence de l'activation thermique sur la r & eacute;cup & eacute;ration des ETR et l'on a & eacute;valu & eacute; l'utilisation potentielle du r & eacute;sidu de lixiviation comme source de silice. D'apr & egrave;s les r & eacute;sultats de la lixiviation acide, on a identifi & eacute; la temp & eacute;rature optimale de calcination & agrave; 700 degrees C. Dans ces conditions, on a obtenu des r & eacute;cup & eacute;rations d'ETR & eacute;lev & eacute;es: 92.9% de La, 89.9% de Ce, 89.0% de Pr, 88.7% de Nd et 73.0% de Sm. Apr & egrave;s la lixiviation, le r & eacute;sidu & eacute;tait enrichi en alumine et en silice. Afin d'am & eacute;liorer la puret & eacute; de la silice et de r & eacute;cup & eacute;rer les ETR et l'Al restants, on a appliqu & eacute; une deuxi & egrave;me & eacute;tape de lixiviation. Cela a engendr & eacute; un sous-produit contenant 55% de SiO2 et pr & eacute;sentant une surface sp & eacute;cifique de 48 m2/g, indiquant son potentiel en tant que source de silice. Les r & eacute;sultats d & eacute;montrent que le schiste associ & eacute; & agrave; la bauxite peut & ecirc;tre valoris & eacute; de mani & egrave;re durable par broyage intensif, calcination et lixiviation acide, permettant une r & eacute;cup & eacute;ration efficace des ETR et la production d'un sous-produit riche en silice.
- MakaleYalnız künye2026Scopus SJRQ3A new lectin from Amanita vaginata mushroom with potent anti-inflammatory activity
Seliman, Thoiba Mogahid Hussein; Ozsoy, Nurten; Altiparmak-Ulbegi, Gulsum; Alp-Kavlo, Hevidar; Arcan, Gulsah Gamze; Akev, Nuriye; Can, Ayse; Aksoy-Sagirli, Pinar
This study used 80% ammonium sulphate fractional precipitation, followed by affinity chromatography to purify a new lectin (AVL) from the crude extract of the Amanita vaginata mushroom. The purification procedure achieved a 20% yield, a specific activity of 5120 HU/mg protein, and a 16-fold increase in purity. SDS-PAGE analysis showed a single band of 45 kDa. We assessed AVL's anti-inflammatory effect by measuring levels of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2), induced by lipopolysaccharide (LPS), in RAW 264.7 macrophages. Western blot analysis showed that iNOS and COX-2 protein levels were barely detectable in the control groups, but markedly elevated in the LPS-treated groups. However, AVL treatment significantly inhibited the expression of both iNOS and COX-2 in LPS-stimulated cells. This effect was dose-dependent. These findings suggest that AVL's anti-inflammatory effects are mediated through the suppression of iNOS and COX-2 expression.
AtıfScopus2WoS1OpenAlex2
İncele - MakaleAçık Erişim2024Scopus SJRQ2Seed content and its oil composition in walnut cultivated from Tunceli, Türkiye
Aydin, Caglar Mert; Güven, Alper
The study is intended to shed light on walnut species cultivated in Tunceli province in 2022 and the oils produced from Juglans regia Fernor walnuts. Physicochemical properties of walnuts and fatty acid composition of the oils produced from the walnuts were identified. In addition, nutritional indexes and bioactive compounds of the oils were determined.Overall, physicochemical properties of the seeds belonging to walnuts significantly changed according to the variety. The major component in walnut seeds was found to be oil content. Saturated (SFA), monounsaturated (MUFA) and polyunsaturated (PUFA) fatty acid ratios of the walnuts were varied according to the type of seed. Characterization of fatty acid composition in the oils from the walnuts was performed according to 6 different fatty acid levels. These fatty acids are myristic, palmitic, margaric, oleic, linoleic and linolenic acid. The oils have a refractive index being in the range of 1.4677-1.4694, the iodine value being in the range of 107-109 gms. TPC (total phenolic content) and DPPH antioxidant activity of the oils significantly changed according to the variety. TPC of the oils were found in the range of 0.33-1.53 mg GAE/g oil and DPPH antioxidant activity of the oils were in the range of 13.04-5.42 mg TE g(-1) oil. All walnut oils showed Newtonian flow behavior. The nutritional indexes including UI (Unsaturation index), IA (Atherogenicity index), IT (Thrombogenicity index) and HH (Hypocholesterolemic/hypercholesterolemic ratio) were determined to significantly change according to the variety, except for IT. It could be stated from the results that Nazimiye walnut seed oil has healthier effects on human health.
AtıfOpenAlex3İncele - MakaleYalnız künye2020Scopus SJRQ1A fast branch, bound and remember algorithm for disassembly line balancing problem
Li, Zixiang; Çil, Zeynel Abidin; Mete, Suleyman; Kucukkoc, Ibrahim
In recent years, the interests of disassembly line have increased owing to economic reasons and the increase of environmental awareness. Effective line can provide many advantages in terms of economic aspect and it facilitates competition the companies with others. This study contributes to the relevant literature by a branch, bound and remember algorithm for disassembly line balancing problem with AND/OR precedence. The proposed exact solution method employs the memory-based dominance rule to eliminate the reduplicated sub-problems by storing all the searched sub-problems and to utilise cyclic best-first search strategy to obtain high-quality complete solutions fast. In this paper, minimising the number of stations is taken as the performance measure. The proposed methodology is tested on a set of 260 instances and compared with the mathematical model using CPLEX solver and five well-known metaheuristics. Computational results show that the proposed method is capable of obtaining the optimal solutions for all the tested instances with less than 0.1 seconds on average. Additionally, comparative study demonstrates that the proposed method is the state-of-the-art algorithm and outperforms the CPLEX solver and metaheuristics in terms of both solution quality and search speed aspects.
AtıfWoS66OpenAlex65İncele - MakaleYalnız künye2017Scopus SJRQ2The anatomical and micromorphological properties of three endemic and medicinal Salvia species (Lamiaceae) in Erzincan (Turkey)
Polat, R.; Cakilcioglu, U.; Selvi, S.; Türkmen, Z.; Kandemir, A.
In this study, we comparatively investigated three endemic Salvia species spreading in Erzincan (Turkey) in terms of anatomy and micromorphology. For anatomical investigation, cross sections taken from stems and leaves of the species were examined under light microscope. For micromorphological investigation, epidermal surface and nutlet structure were examined using scanning electron microscopy. The S. euphratica and S. divaricata species were examined anatomically and micromorphologically for the first time, and S. hypargea was examined micromorphologically for the first time. In anatomical examinations, it was seen that stem and leaf structures of the species were similar. In micromorphological analyses, it has been seen that hairiness of the nutlet surface and nutlet ornamentations (verrucate and rugose type) created a difference between the species.
AtıfWoS15OpenAlex19İncele - MakaleAçık Erişim2017Scopus SJRQ3Comparative morphological, karyological and palynological investigations of three endemic Centaurea L. species (Asteraceae) in Turkey
Hayta, Sukru; Tasar, Neslihan; Kiran, Yasar; Baser, Birol
Centaurea derderiifolia Wagenitz., Centaurea drabifolia Sm. subsp. floccosa (Boiss.) Wagenitz & Greuter and Centaurea kotschyi (Boiss. & Heldr.) Hayek var. floccosa (Boiss.) Wagenitz, which are endemic taxa from Turkey belonging to Centaurea sect. Cheirolepis, were subjected to morphological, karyological and palynological investigations. The somatic chromosome numbers, pollen morphology and detailed morphometric properties were examined. The somatic chromosome numbers were determined as 2n = 2x = 36 in C. derderiifolia, C. kotschyi var. floccosa, and C. drabifolia subsp. floccosa. Karyotype analysis indicated that chromosomes of these Centaurea taxa generally have median region (m), submedian region (sm) and rarely median point (M) karyotypes. The pollen morphology of these endemic taxa of the genus Centaurea was investigated by light and scanning electron microscopy. The pollen grains of the examined species are mainly isopolar and radially symmetric, subprolate, tricolporate. Tectum ornamentation is scabrate and scabrate-perforate, amb triangular. The pollen grains of all taxa studied are 3-zonocolporate. The colpus is usually long, acute at ends and with smooth membrane. Pollen grains belonging to Cheirolepis section reveal homogeneity in their characters.
AtıfWoS7OpenAlex4İncele - MakaleAçık Erişim2017Scopus SJRQ3First microsatellite markers for Scaligeria lazica Boiss. (Apiaceae) by next-generation sequencing: population structure and genetic diversity analysis
Baldemir, Ayse; Topçu, Hayat; Paksoy, Mehmet Yavuz; Motalebipour, Elmira Ziya; Kafkas, Salih
The Apiaceae family includes a few agronomic and medicinal species, one of which is Scaligeria lazica Boiss. In this study, the genetic diversity of S. lazica was analyzed based on novel simple sequence repeat (SSR) markers using next-generation sequencing (NGS). A total of 15.17G clean Illumina data set was obtained and dinucleotide repeats were the most abundant repeats in S. lazica. Of the tested 150 SSR primer pairs, 139 ones produced amplification and 84 ones were polymorphic. Forty polymorphic SSR loci were used in genetic diversity analysis of 40 S. lazica accessions from four locations. A total of 264 alleles were amplified with an average of 6.6 alleles per locus. The polymorphism information content (PIC) was 0.60, while the observed homozygosity (Ho) and expected heterozygosity (He) values were 0.47 and 0.66, respectively. According to cluster and structure analysis, all accessions were grouped into four different clusters according to their collection sites. The SSR markers developed in this study can be tested for other Scaligeria species due to their high transferability and can be used for genetic studies in genus Scaligeria DC.
AtıfWoS3OpenAlex2İncele - MakaleYalnız künye2016Scopus SJRQ3Combined effects of physicochemical variables (pH and salinity) on sperm motility: characterization of sperm motility in European sea bass Dicentrarchus labrax
Ögretmen, F.; Inanan, B. E.; Kutluyer, F.
Gamete activation in fish is an important step in terms of artificial fertilization of oocytes, cryopreservation studies and other experimental manipulations. Salinity and pH differences in activation media affect to sperm motility and fertilizing ability. These experiments were therefore designed to investigate the combined effects of pH (range 5.0-9.0) and salinity (20, 30, 37, and 45 parts per thousand) of activation media on sperm motility of European sea bass Dicentrarchus labrax. The best results were obtained at salinity 37 parts per thousand and a pH of 9.0. Our results also demonstrated that non-progressive motility at salinity 45 parts per thousand was observed in the range of 5.0-9.0 pH. In conclusion, spermatozoa can be motile at a wide range of pH and salinity values although the percent of motile spermatozoa and motility duration are negatively affected by low pH values.
AtıfWoS13OpenAlex17İncele - MakaleYalnız künye2016Scopus SJRQ2Storm water retention and actual evapotranspiration performances of experimental green roofs in French oceanic climate
Yilmaz, D.; Sabre, M.; Lassabatère, L.; Dal, M.; Rodriguez, F.
Green roofs are promising urban management tools from the standpoint of both rainwater management and microclimatology. They are considered as a storm water mitigation technique and may also favour evapotranspiration fluxes, which can be beneficial for urban comfort during summer periods. In France, however, water retention performance of green roofs remains unknown, and published values are often unsuitable. Six experimental roofs, including two thicknesses of growing media, three types of vegetation cover and bare surfaces, were monitored for two years in Nantes and compared to an experimental gravel flat roof. The thickest media combined with the most densely vegetated cover yields the best results in terms of storm water mitigation and actual evapotranspiration. In winter, the rainwater retention performance is clearly dependent on the type of experimental roof vegetation. This kind of experimental set-up is well suited to assisting urban planners design tools for storm water mitigation in buildings.
AtıfWoS22OpenAlex28İncele - MakaleAçık Erişim2016Scopus SJRQ2Exponential prototype structures for (2+1)-dimensional Boiti-Leon-Pempinelli systems in mathematical physics
Baskonus, Haci Mehmet; Bulut, Hasan
In this study, a new method called improved Bernoulli sub-equation function method has been proposed. This method is based on the Bernoulli sub-ODE method. After we mention the general properties of proposed method, we apply this algorithm to the (2+1)-dimensional Boiti-Leon-Pempinelli equation system. This gives us some new prototype solutions such as exponential and rational function solutions. Then, we have plotted two- and three-dimensional surfaces of analytical solutions. Finally, we have submitted a comprehensive conclusion.
AtıfWoS150OpenAlex151İncele - MakaleAçık Erişim2016Scopus SJRQ2New wave behaviors of the system of equations for the ion sound and Langmuir Waves
Baskonus, Haci Mehmet; Bulut, Hasan
This manuscript focuses on the new wave behaviors of the system of equations for the ion sound wave under the action of the ponderomotive force which results from a nonlinear force that a charged particle experiences in an inhomogeneous oscillating electromagnetic field due to high-frequency field. The sine-Gordon expansion method which is one of the powerful methods has been considered for finding traveling wave solutions of the system of equations for the ion sound wave under the pressure of the Langmuir wave. This algorithm yields new complex hyperbolic function solutions to the system considered in this paper. Wolfram Mathematica 9 has been successfully used throughout the paper for mathematical calculations.
AtıfWoS94OpenAlex99İncele - MakaleÖn baskısı açık2016Scopus SJRQ2Morphological, karyological and palynological investigation of endemic Centaurea kurdica Reichardt from Turkey
Hayta, S.; Tasar, N.; Kiran, Y.; Cakilcioglu, U.; Bagci, E.
The purpose of this study was to determine the morphological, morphometrical, karyological and palynological features of the endemic Centaurea kurdica Reichardt species from East Anatolian region. Some morphological features of the species like morphology of capitula, involucra, involucral leaves (phyllaries) and achene have been investigated. The chromosome number of Centaurea kurdica was found as 2n = 18 and haploid karyotype formula 6m + 2sm + 1M. Metaphase chromosome length ranged from 5.81 to 3.91 mu m and the total haploid chromosome length was 41.09 mu m. The results of the light microscope investigation of pollen revealed that it is radially symmetrical, isopolar tricolporate and has spheroid-type pollen, and exine ornamentation was also determined as scabrate.
AtıfWoS4OpenAlex2İncele - MakaleAçık Erişim2015Scopus SJRQ4Optimization of lipase production on agro-industrial residue medium by Pseudomonas fluorescens (NRLL B-2641) using response surface methodology
Tanyol, Mehtap; Uslu, Gulsad; Yönten, Vahap
The aim of our research was to explore the most cost-efficient and optimal medium composition for the production of lipase from Pseudomonas fluorescens (NRLL B-2641) culture grown on sunflower oil cake (SuOC) by applying response surface methodology (RSM). The oil cake was used instead of carbon sources. Peptone, ammonium sulphate and the carbon source (SuOC) were the most important factors as it is obligatory for microbial growth. Subsequently, the optimum values for the carbon source, peptone and ammonium sulphate were found to be 11.10% (w/v), 1.18% (w/v) and 0.83% (w/v), respectively. Experiments carried out under optimum conditions revealed a maximum lipase activity of 10.8 U mL(-1), which was achieved after 48 h of fermentation. The obtained results were finally verified with batch experiments carried out under the optimum conditions evaluated and it was demonstrated that the SuOC from agro-industrial residue as substrates can be used as an inexpensive base (carbon source) for the production of lipase by P. fluorescens (NRLL B-2641).
AtıfWoS19İncele - MakaleAçık Erişim2015Scopus SJRQ2Rutin attenuates gentamicin-induced renal damage by reducing oxidative stress, inflammation, apoptosis, and autophagy in rats
Kandemir, Fatih Mehmet; Ozkaraca, Mustafa; Yildirim, Betul Apaydin; Hanedan, Basak; Kirbas, Akin; Kilic, Kubra; Aktas, Esra; Benzer, Fulya
Gentamicin is commonly used against gram-negative microorganisms. Its therapeutic use is mainly limited by nephrotoxicity. This study was aimed at evaluating the effect of rutin on oxidative stress, inflammation, apoptosis, and autophagy in gentamicin-induced nephrotoxicity in rats. The rats were treated with saline intraperitoneally (group I), 150 mg/kg of rutin orally (group II), 80 mg/kg of gentamicin intraperitoneally for 8 d (group III), or 150 mg/kg of rutin plus 80 mg/kg of gentamicin (group IV). The serum urea, creatinine, kidney malondialdehyde (MDA), and reduced glutathione (GSH) levels and superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) activity and protein concentration were measured, and renal histopathology analysis and immunohistochemical staining were performed. Rutin pretreatment attenuated nephrotoxicity induced by gentamicin by reducing the urea, creatinine, and MDA levels and increasing the SOD, CAT, and GPx activity, and the GSH levels. The rutin also inhibited inducible nitric oxide synthase (iNOS), cleaved caspase-3 and light chain 3B (LC3B), as evidenced by immunohistochemical staining. The present study demonstrates that rutin exhibits antioxidant, anti-inflammatory, anti-apoptotic, and anti-autophagic effects and that it attenuates gentamicin-induced nephrotoxicity in rats.
AtıfWoS107OpenAlex123İncele - MakaleYalnız künye2015Scopus SJRQ2Effects of Temperature and Hole Drilling on Adhesively Bonded Single-Lap Joints
Arikan, Volkan; Dogan, Akar; Dogan, Tolga; Sabanci, Eray; Al-Shamary, Adel Kadum Jassim
In this study, the load-carrying capacity of a single-lap joint bonded by an adhesive was determined experimentally. Glass fiber-epoxy composite material was chosen as adherends and Loctite (R) 9466 A&B2 was used as adhesive. The vacuum assisted resin infusion method (VARIM) was used to manufacture composites. In this experimental study, the effects of hole drilling and temperature were investigated. Five hole configurations and three temperatures (room temperature, 50 degrees C, and 80 degrees C) were considered. The results show that hole drilling elevate the failure load and when the temperature increases the load-carrying capacity decreases.
AtıfWoS20OpenAlex21İncele - MakaleAçık Erişim2015Scopus SJRQ1Analytical studies on the (1+1)-dimensional nonlinear Dispersive Modified Benjamin-Bona-Mahony equation defined by seismic sea waves
Baskonus, Haci Mehmet; Bulut, Hasan
In this study, we have studied to obtain some new analytical solutions to the (1+1)-dimensional nonlinear Dispersive Modified Benjamin-Bona-Mahony equation by using modified exp-function method. We have submitted the general structure of modified exp-function method. We have founded some new analytical solutions such as hyperbolic and rational function solutions. Afterward, we have plotted 2D and 3D surfaces of analytical solutions obtained in this study by using computer programming wolfram Mathematica 9.
AtıfWoS39OpenAlex44İncele - MakaleAçık Erişim2015Scopus SJRQ1On the complex structures of Kundu-Eckhaus equation via improved Bernoulli sub-equation function method
Baskonus, Haci Mehmet; Bulut, Hasan
In this study, we obtain some new complex analytical solutions to the Kundu-Eckhaus equation which seems in the quantum field theory, weakly nonlinear dispersive water waves and nonlinear optics using improved Bernoulli sub-equation function method. After we have mentioned the general structure of improved Bernoulli sub-equation function method, we have successfully applied this method and then obtained some new complex hyperbolic and complex trigonometric function solutions. Two- and three-dimensional surfaces of analytical solutions have been plotted via wolfram Mathematica 9 version. At the end of this article, a conclusion has been submitted by mentioning important points founded in this study.
AtıfWoS89OpenAlex108İncele - 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 - Derleme MakaleYalnız künye2013Scopus SJRQ1Antimicrobial resistance of emerging foodborne pathogens: Status quo and global trends
Koluman, Ahmet; Dikici, Abdullah
Emerging foodborne pathogens are challenging subjects of food microbiology with their antibiotic resistance and their impact on public health. Campylobacter jejuni, Salmonella spp. and Verotoxigenic Escherichia coli (VTEC) are significant emerging food pathogens, globally. The decrease in supply and increase in demand lead developed countries to produce animal products with a higher efficiency. The massive production has caused the increase of the significant foodborne diseases. The strict control of food starting from farm to fork has been held by different regulations. Official measures have been applied to combat these pathogens. In 2005 EU declared that, an EU-wide ban on the use of antibiotics as growth promoters in animal feed would be applied on 1 January 2006. The ban is the final step in the phasing out of antibiotics used for non-medical purposes. It is a part of the Commission's strategy to tackle the emergence of bacteria and other microbes resistant to antibiotics, due to their overexploitation or misuse. As the awareness raises more countries banned application of antibiotics as growth promoter, but the resistance of the emerging foodborne pathogens do not represent decrease. Currently, the main concern of food safety is counter measures against resistant bugs.
AtıfWoS89OpenAlex112İncele - MakaleYalnız künye2013Scopus SJRQ2Five complexes containing N,N-bis(2-hydroxyethyl)-ethylenediamine with tetracyanidopalladate(II): synthesis, crystal structures, thermal, magnetic, and catalytic properties
Korkmaz, S. Aslan; Karadag, A.; Korkmaz, N.; Andaç, O.; Gürbüz, N.; Özdemir, I.; Topkaya, R.
Five cyanide complexes, [Ni(N-bishydeten)Pd(CN)(4)] (1), [Cu(N-bishydeten)Pd(-CN)(2)(CN)(2)](n) (2), [Cu(N-bishydeten)(2)][Pd(CN)(4)] (3), [Zn(N-bishydeten)Pd(CN)(4)] (4), and [Cd(N-bishydeten)(2)][Pd(CN)(4)] (5) (N-bishydeten = N,N-bis(2-hydroxyethyl)-ethylenediamine), have been synthesized and characterized using various techniques. Different structures were formed when the M:L ratio was varied in copper complexes. The single-crystal X-ray diffraction analysis reveals that 2, a 1-D cyanide-bridged complex with 2,2-CT-type zigzag chain, was obtained by using 1:1M:L ratio whereas 3 was formed as a complex salt in a molar ratio of 1:2. The thermal stabilities determined from DTG(max) values of the first decomposition stages change in the order 1>5>4>3>2. Although an EPR signal was not observed for 1, the g parameters obtained from the EPR spectra of 2 and 3 indicate that Cu-II ions are located in tetragonally distorted octahedral sites (D-4h), and the ground state of the unpaired electron is (B-2(1g)). The magnetic behavior indicates a very small antiferromagnetic interaction below 10K for 1-3. In 3, there is a temperature-independent paramagnetism () due to the orbital moments of the d electrons. 1-3 were tested as catalysts in Suzuki and Heck coupling reactions.
AtıfWoS16OpenAlex15İncele