LIVIVO - Das Suchportal für Lebenswissenschaften

switch to English language
Erweiterte Suche

Suchergebnis

Treffer 1 - 7 von insgesamt 7

Suchoptionen

  1. Artikel: Results of heavy metals and other water quality levels in tap water from Çan sourced from Ağı Dağı (Mt. Ağı) (Çanakkale, Turkey).

    Kilinc, Gamze / Yilmaz, Selehattin / Turkoglu, Muhammet / Erdugan, Huseyin

    Journal of water and health

    2016  Band 14, Heft 3, Seite(n) 549–558

    Abstract: In 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 ... ...

    Abstract In 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 (Ağı Dağı in Turkish) spring waters between May 2012 and February 2013 in Çan (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).
    Mesh-Begriff(e) Drinking Water/analysis ; Drinking Water/chemistry ; Environmental Monitoring ; Metals, Heavy/analysis ; Turkey ; Water Pollutants, Chemical/analysis ; Water Quality
    Chemische Substanzen Drinking Water ; Metals, Heavy ; Water Pollutants, Chemical
    Sprache Englisch
    Erscheinungsdatum 2016-06
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2123845-5
    ISSN 1996-7829 ; 1477-8920
    ISSN (online) 1996-7829
    ISSN 1477-8920
    DOI 10.2166/wh.2016.245
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  2. Artikel: Erratum: Journal of Water and Health 14 (3), 549-558: Results of heavy metals and other water quality levels in tap water from Çan sourced from Ağı Dağı (Mt. Ağı) (Çanakkale, Turkey), Gamze Kilinc, Selehattin Yilmaz, Muhammet Turkoglu and Huseyin Erdugan, doi: 10.2166/wh.2016.245.

    Kilinc, Gamze / Yilmaz, Selehattin / Turkoglu, Muhammet / Erdugan, Hüseyin

    Journal of water and health

    2016  Band 14, Heft 5, Seite(n) 878

    Sprache Englisch
    Erscheinungsdatum 2016
    Erscheinungsland England
    Dokumenttyp Journal Article ; Published Erratum
    ZDB-ID 2123845-5
    ISSN 1996-7829 ; 1477-8920
    ISSN (online) 1996-7829
    ISSN 1477-8920
    DOI 10.2166/wh.2016.000
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  3. Artikel: Amino acid composition and crude protein values of some Cyanobacteria from Çanakkale (Turkey).

    Akgül, Rıza / Kızılkaya, Bayram / Akgül, Füsun / Erduğan, Hüseyin

    Pakistan journal of pharmaceutical sciences

    2015  Band 28, Heft 5, Seite(n) 1757–1761

    Abstract: Cyanobacteria (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 ... ...

    Abstract Cyanobacteria (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.
    Mesh-Begriff(e) Amino Acids/analysis ; Bacterial Proteins/analysis ; Cyanobacteria/chemistry ; Turkey
    Chemische Substanzen Amino Acids ; Bacterial Proteins
    Sprache Englisch
    Erscheinungsdatum 2015-09
    Erscheinungsland Pakistan
    Dokumenttyp Journal Article
    ZDB-ID 885131-1
    ISSN 1011-601X
    ISSN 1011-601X
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  4. Artikel ; Online: Seasonal concentrations of some heavy metals (Cd, Pb, Zn, and Cu) in Ulva rigida J. Agardh (Chlorophyta) from Dardanelles (Canakkale, Turkey).

    Ustunada, Mehtap / Erduğan, Hüseyin / Yılmaz, Selehattin / Akgul, Rıza / Aysel, Veysel

    Environmental monitoring and assessment

    2010  Band 177, Heft 1-4, Seite(n) 337–342

    Abstract: In 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 ... ...

    Abstract In 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.
    Mesh-Begriff(e) Cadmium/analysis ; Copper/analysis ; Environmental Monitoring ; Lead/analysis ; Metals, Heavy/analysis ; Seasons ; Seawater/chemistry ; Turkey ; Ulva/chemistry ; Water Pollutants, Chemical/analysis ; Water Pollution, Chemical/statistics & numerical data ; Zinc/analysis
    Chemische Substanzen Metals, Heavy ; Water Pollutants, Chemical ; Cadmium (00BH33GNGH) ; Lead (2P299V784P) ; Copper (789U1901C5) ; Zinc (J41CSQ7QDS)
    Sprache Englisch
    Erscheinungsdatum 2010-08-17
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 782621-7
    ISSN 1573-2959 ; 0167-6369
    ISSN (online) 1573-2959
    ISSN 0167-6369
    DOI 10.1007/s10661-010-1637-7
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  5. Artikel ; Online: Loliolide in marine algae.

    Percot, Aline / Yalcin, Ahmet / Aysel, Veysel / Erduğan, Hüseyin / Dural, Berrin / Güven, Kasim Cemal

    Natural product research

    2009  Band 23, Heft 5, Seite(n) 460–465

    Abstract: Loliolide content was determined in 13 marine algae including red, brown and green algae collected from the Black Sea, the Dardanelles and the Aegean Sea. Identification and quantification were performed by gas chromatography-mass spectrometry. The ... ...

    Abstract Loliolide content was determined in 13 marine algae including red, brown and green algae collected from the Black Sea, the Dardanelles and the Aegean Sea. Identification and quantification were performed by gas chromatography-mass spectrometry. The loliolide content in green alga is 1.76 microg g(-1), ranges from 0.14 to 4.35 microg g(-1) in red and from 0.18 to 4.83 microg g(-1) in brown algae. The results obtained are in the same range as previously reported for algae, as well as terrestrial plants. This article represents the first report of loliolide occurrence in green algae.
    Mesh-Begriff(e) Benzofurans/chemistry ; Eukaryota/chemistry ; Molecular Structure
    Chemische Substanzen Benzofurans ; loliolide (U3BB4IM281)
    Sprache Englisch
    Erscheinungsdatum 2009
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2185747-7
    ISSN 1478-6427 ; 1478-6419
    ISSN (online) 1478-6427
    ISSN 1478-6419
    DOI 10.1080/14786410802076069
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  6. Artikel: Macro and micro algae of Laka Brook (Bornova, Izmir, Turkey).

    Aysel, Veysel / Erduğan, Hüseyin / Türker, Emre / Aysel, Fulya / Gönüz, Ahmet

    Su Ürünleri Dergisi; Volume: 18 Issue: 3

    Sprache Türkisch
    Dokumenttyp Artikel
    ISSN 2148-3140
    Datenquelle AGRIS - International Information System for the Agricultural Sciences and Technology

    Zusatzmaterialien

    Kategorien

  7. Artikel: One-step fabrication of biocompatible carboxymethyl cellulose polymeric particles for drug delivery systems

    Butun, Sultan / Ince, Fatma Gul / Erdugan, Huseyin / Sahiner, Nurettin

    Carbohydrate polymers

    Band v. 86,, Heft no. 2

    Abstract: Carboxymethyl cellulose (CMC) particles were synthesized in one step employing inverse micelle microemulsion polymerization using divinyl sulfone as crosslinking agent. These synthesized particles were further modified and demonstrated as drug delivery ... ...

    Abstract Carboxymethyl cellulose (CMC) particles were synthesized in one step employing inverse micelle microemulsion polymerization using divinyl sulfone as crosslinking agent. These synthesized particles were further modified and demonstrated as drug delivery system. Acyclovir was chosen as the model drug. The synthesized CMC particles were made magnetic responsive by encasing independently prepared magnetic ferrite particles (Fe₃O₄) in CMC polymeric particles during the synthesis as magnetic-CMC (m-CMC). The particles were characterized by using dynamic light scattering (DLS), zeta potential measurements (ZP), FT-IR spectroscopy, scanning electron microscopy (SEM) and thermogravimetric analyzer (TGA). The synthesized particles have wide size distribution ranging from 100 to 10,000nm. The further modification of CMC and magnetic Fe₃O₄ containing CMC polymeric particles crosslinked at different ratios was performed successfully by introducing new functional groups to the CMC networks. It was determined that these particles obtained from the natural CMC polymers have a potential range of application as drug and targeted drug delivery system in biomedical field.
    Schlagwörter zeta potential ; iron oxides ; drugs ; crosslinking ; carboxymethylcellulose ; polymerization ; light scattering ; ferrimagnetic materials ; drug delivery systems ; thermogravimetry ; polymers ; scanning electron microscopy ; Fourier transform infrared spectroscopy ; micelles
    Sprache Englisch
    Dokumenttyp Artikel
    ISSN 0144-8617
    Datenquelle AGRIS - International Information System for the Agricultural Sciences and Technology

    Zusatzmaterialien

    Kategorien

Zum Seitenanfang