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Öğe A Chemical Research on Three Red Algae Gracilaria bursa-pastoris, Phyllophora crispa and Laurencia obtusa var. pyramidata(Asian Journal Of Chemistry, 2014) Guven, Kasim C.; Coban, Burak; Erdugan, HuseyinIn this paper, the exogenic and endogenic compounds in three red algae Gracilaria bursa-pastoris, Phyllophora crispa and Laurencia obtusa var. pyramidata were reported. Exogenic compounds detected are oil components and other pollutants such as, saturated and unsaturated aliphatic, cyclic and aromatic hydrocarbons, BHT, nonyl phenol and halogenated compounds as hexachloroethane and 4-chlorophenol. Endogenic compounds were fatty acids and its esters, eicosane, squalene, phytol. The algae can be used for monitoring of the sea pollution.Öğe Amino acid composition and crude protein values of some Cyanobacteria from Canakkale (Turkey)(Univ Karachi, 2015) Akgul, Riza; Kizilkaya, Bayram; Akgul, Fusun; Erdugan, HuseyinCyanobacteria (blue-green algae) form an important component of integrated nutrient managements in agriculture and are exploited in commercial biotechnological ventures. In this study, Rivularia bullata (Poir) Berkeley ex Bornet & Flahault, Nostocs pongiaeforme C. Agardh ex Bornet & Flahault were researched for their amino acid composition and crude protein values. R. bullata was collected from coastal zones of the Gulf of Saros and N. spongiaeforme from the Ayazma Stream. The levels of amino acids were measured in algae samples using EZ: fast kits (EZ: fast GC/FID Protein Hydrolysate Amino Acid Kit) by gas chromatography. The crude proteins of samples were determined by the Kjeldahl method and were calculated using a nitrogen conversion factor of 6.25. Thirty-two amino acids were investigated, for N. spongiaeforme eight free essential amino acids (EAA), eight free non-essential amino acids (NEAA) and eleven other amino acids (OAA); for R. bullata eight EAA, eight NEAA and eight OAA were detected. Aspartic acid is the major constituent for both species. The total protein percents were determined for N. spongiaeforme as % 19.83 and for R. bullata as % 6.15. When considering the increasing world population and reducing natural products; Cyanobacteria will benew feed sources for all living.Öğe Antimicrobial Activity of Some Brown Algae from Turkey(Asian Journal Of Chemistry, 2009) Dulger, Basaran; Hacioglu, Nurcihan; Erdugan, Huseyin; Aysel, VeyselIn vitro antimicrobial screening of methanolic extracts obtained from 6 brown algae (Calpomenia peregrine (Sauvageau) Hamel, Halopteris scoparia (Linnaeus) Sauvageau, Padina pavonica (Linnaeus) Thivy, Cystoseria compressa (Esper) Gerloff et. Nizamuddin, Cladostephus spongiosus (Hudson) C.Agardh and Scytosiphon simplicissimus (Clemente) Cremades) (Heterokontophyta) collected from coast of Canakkale, Turkey, against Escherichia coli ATCC 11230, Staphylococcus aureus ATCC 6538P, Klebsiella pneumoniae UC57, Pseudomonas aeruginosa ATCC 27853, Proteus vulgaris ATCC 8427, Bacillus subtilis ATCC 6633, Mycobacterium smegmatis CCM 2067, Listeria monocytogenes ATCC 15313, Microccoccus luteus CCM 169, Candida albicans ATCC 1023 1, Rhodotorula rubra DSM 70403, Kluyveromyces fragilis ATCC 8608 and Cryptococcus neoformans ATCC 90112 was conducted in this study by disc diffusion method. Cystoseria compressa was the most active exhibiting a broad spectrum antimicrobial activity against each of the microorganims tested. Contrary to this, the lowest effect was observed for Calpomenia peregrine. The other algae species have moderate effects. The extracts showing good antimicrobial activity are undergoing further analysis to identify the active constituents.Öğe BIODIVERSITY OF MARINE BENTHIC MACROFLORA (SEAWEEDS / MACROALGAE AND SEAGRASSES) OF THE MEDITERRANEAN SEA(Turkish Marine Research Foundation-Tudav, 2016) Okudan, Emine Sukran; Dural, Berrin; Demir, Volkan; Erdugan, Huseyin; Aysel, Veyse[Anstract Not Available]Öğe Description of Ceramium Roth Species of Turkey with a New Record for the Mediterranean(Central Fisheries Research Inst, 2020) Firat, Ali Rahmi; Erdugan, HuseyinA guide for species identification of representatives of the genus Ceramium (Roth, 1797) along the Turkish coast is elaborated in this study. Some of the samples used in this study were collected from our previous field studies. However, inappropriate and missing samples in the Herbarium were collected again. The samples were also studied from the personal herbarium of Huseyin ERDUGAN. Twenty-six species of genus Ceramium Roth were found and identified along the shores of Turkey, with Ceramium camouii Dawson 1944, being a new record from the Mediterranean. In this study, a catalog based on the morphological and anatomical characteristics of genus Ceramium Roth found on the shores of Turkey is described.Öğe Epizoic algae on Emys orbicularis (LINNAEUS, 1758), and Mauremys rivulata (VALENCIENNES, 1833), in the Kayak River Delta (Saros Bay, Turkey) (Testudines: Emydidae, Geoemydidae)(Pensoft Publishers, 2014) Akgul, Riza; Caprazli, Tugce; Turker, Nesrin; Erdugan, Huseyin; Tosunoğlu, MuratFour Mauremys rivulata (VALENCIENNES, 1833) and thirty-nine Emys orbicularis (LINNAEUS, 1758) collected in the Kayak River Delta (Saros Bay, Province of Canakkale, Turkish Thrace) were examined for epizoic algae on tail and carapace surfaces. Algae samples were grouped according to turtle species and shell size to detect potential patterns in the distributions of algae. Fourteen taxa of epizoic algae that were collected by scraping were identified from the turtles. Algae of the genera Chamaesiphon, Phormidium and Oscillatoria were found most frequently. The amount of algal growth was less in M rivulata than E. orbicularis when turtles of similar carapax length were compared.Öğe GREEN TURTLES (Chelonia mydas) FEEDING ON INVASIVE ALGAE Caulerpa taxifolia IN TURKEY(Folium Publ Co, 2015) Yalçın Özdilek, Şükran; Akdeniz, Burcu; Firat, Ali Rahmi; Balkan, Emine Inci; Gursoy, Sait; Sonmez, Bektas; Erdugan, HuseyinAn invasive species is a species that has been introduced to an area outside its natural range and can cause ecological problems such as change the functions of ecosystems. A female green turtle was predated by a jackal on Samandag beach, in Turkey. Stomach content was sampled and stored for diet analysis. Macroalgae were the dominant food in terms of mass, and Caulerpa taxifolia (M. Vahl) C. Agardh, which is an invasive species, was the most frequent food type. Although this species has not been shown to be a preferred diet item for green turtles, C. taxifolia is dominant species at the area and was consumed by the adult green turtle.Öğe HHCP CONTAMINATION IN MARINE ALGA LAURENCIA PYRAMIDALIS BORY DE SAINT-VINCENT EX KUTZING(Parlar Scientific Publications (P S P), 2013) Guven, Kasim Cemal; Coban, Burak; Ozkirimli, Sumru; Erdugan, Huseyin; Sezik, EkremThis paper describes isolation and indentification of HHCP (Galaxolide (R)) as pollutant in red alga Laurencia pyramidalis Bory de Saint-Vincent ex Kutzing (Syn. Laurencia obtusa var. pyramidata Bory ex J. Agardh) collected from Igneada (Black Sea coast) by GC/MS analysis. It was previously found as a pollutant in Danube River which consequently contaminates the Black Sea. It was suggested that this is a contamination of alga because it was not found in the same species collected from Assos (Canakkale). This is the first record of HHCP contamination in algae.Öğe Marine algae and seagrasses of Bozcaada (Canakkale, Aegean Sea, Turkey)(Ege Univ, 2005) Aysel, Veysel; Erdugan, Huseyin; Okudan, Emine Sukran; Erk, HakanThe presence and the distribution of the cyanobacteria, red algae, brown algae, green algae and seagrasses were studied in the Bozcaada (Aegean Sea, Canakkale, Turkiye). In the study, 412 seaweeds and four seagrasses were determined. These were distributed as 25 taxa of Cyanophyta, 224 taxa of Rhodophyta, 88 taxa of Heterokontophyta, 75 taxa of Chlorophyta and four species of seagrasses. A total of 416 taxa were determined.Öğe Morphological and Molecular Characterization of Scenedesmus-Like Species from Ergene River Basin (Thrace, Turkey)(Central Fisheries Research Inst, 2017) Akgul, Fusun; Kizilkaya, Inci Tuney; Akgul, Riza; Erdugan, HuseyinThe genus Scenedesmus and other allied morphospecies can not only been identified morphologically due to their smaller sizes and phenotypic plasticity. In this study, six Scenedesmus-like species were isolated and investigated from the inland freshwater of Ergene River Basin (Thrace, Turkey). These strains were studied in-depth using the light microscopy (LM) and the molecular ITS1-ITS4 gene sequencing. The combined morphological and phylogenetic analysis revealed that the strains studied belonged to the genera Desmodesmus (2 strains were characterized as D. communis and one strain identified as D. armatus var. subalternas), Acutodesmus (2 strains related to A. obliquus), and only one strain of the genus Pectinodesmus that identified as P. pectinatus. This study confirms that morphological identification of Scenedesmus-like species is considered not only enough for accurate species delineation but also the molecular approaching techniques should be applied. However, more deep molecular studies using other genes sequencing should be integrated for more easily species identification.Öğe Results of heavy metals and other water quality levels in tap water from Can sourced from Agi Dagi (Mt. Agi) (Canakkale, Turkey)(Iwa Publishing, 2016) Kilinc, Gamze; Yilmaz, Selehattin; Türkoğlu, Muhammet; Erdugan, HuseyinIn this study, the concentrations of heavy metals Pb, Cu, Zn, Cd, Ni, Fe, Mn and Cr were determined using an inductively coupled plasma and optical emission spectrophotometer (ICP-OES), and water quality parameters pH, temperature, and conductivity were measured using the YSI 556 MPS water probe. The water samples were collected monthly from five different street tap water points sourced from Mt. Agi (Agi Dagi in Turkish) spring waters between May 2012 and February 2013 in Can (Canakkale, Turkey). All results were compared with the drinking water standards of the Turkish Standards Institute (TSE 266), World Health Organization, European Union and US Environmental Protection Agency. While concentrations of Cu, Zn, Fe, and Mn were within limit values, Pb, Cd, Ni, and Cr were at undetectable limits. The highest concentrations of Cu, Zn, Fe, and Mn were 0.010 ppm, 0.018 ppm, 0.058 ppm, and 0.014 ppm, respectively. The findings revealed that although there was no public health risk in view of heavy metal concentrations, there was an acidity problem due to lower pH levels correlated with some heavy metals such as Cu (R = 0.419), Fe (R = -0.421) and Mn (R = -0.687).Öğe Results of heavy metals and other water quality levels in tap water from Can sourced from Agi Dagi (Mt. Agi) (Canakkale, Turkey) (vol 14, pg 549, 2016)(Iwa Publishing, 2016) Kilinc, Gamze; Yilmaz, Selehattin; Türkoğlu, Muhammet; Erdugan, Huseyin[Anstract Not Available]Öğe Seasonal concentrations of some heavy metals (Cd, Pb, Zn, and Cu) in Ulva rigida J. Agardh (Chlorophyta) from Dardanelles (Canakkale, Turkey)(Springer, 2011) Ustunada, Mehtap; Erdugan, Huseyin; Yilmaz, Selehattin; Akgul, Riza; Aysel, VeyselIn this study, changes in heavy metal accumulation in U. rigida J. Agardh taxon and seawater have been investigated with respect to different stations and seasons. For this purpose, the severity of heavy metal pollution in the Dardanelles has been presented through the determination of Cu, Pb, Zn, and Cd concentrations in U. rigida macroalgae and seawater taken seasonally from the stations located on six different regions on the strait. While the metal concentrations in alga specimens were found to be high in spring and winter in all stations; the metal concentrations in the seawater, particularly the Pb concentration, were found to be high in all seasons.Öğe The population of Mauremys rivulata (VALENCIENNES, 1833) on the Island of Bozcaada, Turkey(Pensoft Publishers, 2014) Gul, Cigdem; Tosunoğlu, Murat; Hacioglu, Nurcihan; Caprazli, Tugce; Erdugan, Huseyin; Uysal, Ibrahim[Anstract Not Available]Öğe Total Lipid and Fatty Acid Composition of Twelve Algae from Canakkale (Turkey)(Natl Inst Science Communication-Niscair, 2015) Akgul, Riza; Kizilkaya, Bayram; Akgul, Fusun; Erdugan, HuseyinThe total lipid and fatty acid methyl esters composition of the some algae collected from coastal zones of the canakkale were determined by Folch method. This method is a conventional lipid extraction procedure using the solvent, chloroform: methanol (2:1 v/v). Fatty acid analyses were made by using gas chromatography. Total lipid percentages ranged from 2.02% (dry weight algae: d.w.) in Lemanea fluviatilis to 9.56% (d.w.) in Batrachospermum gelatinosum. Presence of 33 fatty acids was revealed, of which 13 were saturated and 20 were unsaturated. Nine of unsaturated were monounsaturated and eleven of them were polyunsaturated fatty acids. The major fatty acids identified were palmitic (16:0) and oleic acid (C18:1n9). For the ratio unsaturated/ saturated; Lemanea fluviatilis (2.24) has the highest value and then Dictyota implexa (1.78), Cystoseira barbata (1.59), respectively. Phyllophora crispa has the highest total omega-3 (19.28%), omega-6 (16.6%) and Lemanea fluviatilis has the highest omega-9 (66.01%) values in total fatty acids.Öğe TOTAL LIPID, FATTY ACIDS AND OTHER BIOCHEMICALS OF TETRACYSTIS ISOBILATERALIS RM BROWN & HC BOLD(Parlar Scientific Publications (P S P), 2017) Micoogullari, Cumhur; Akgul, Riza; Akgul, Fusun; Erdugan, HuseyinMicroalgae are very important organisms because of their biochemical contents. They can be used many areas such as industrial applications, agriculture, human and animal nurtrition etc. When the increasing population is considered, the humanity will need more nutrient. At this point; microalgae help us because they have essential amino acids, fatty acids and the other biochemical molecules that obligatory for human and animal nutrition. In this study; biochemical properties such as total protein amount, total oil amount, types and amounts of fatty acids, vitamin A, E and beta-Carotene amount of Tetracystis isobilateralis R. M. Brown & H. C. Bold were examined by using gas chromatography. Analysis has shown that total protein amount was 38.73%; total oil amount was 16.37%; vitamin E amount was 301.8 mg/kg, vitamin A amount was 28.40 mg/kg and beta-carotene amount was 815.4 mg/kg. Amounts of palmitic, linoleic, oleic, stearic fatty acid types were found to be 40.99%, 6.34%, 35.89% and 16.64% respectively.
