PERSONAL

Date of Birth:

Marital Status:

22/11/1980

Married, twin daughters

Adress:

Ankara University, Science Faculty, Biology Department 06100 Ankara/Turkey

Telephone:

312 212 67 20-   1072 / 1442

Fax:

312 223 23 95

E-posta:

sertugrul@ankara.edu.tr

Web Adress:

http://cebag.science.ankara.edu.tr/

TITLE OF THESIS

THESIS ADVISOR

Doctoral Thesis: Determination of The Microbial Lipid Usage in Biodiesel Production

Prof. Dr. Gönül Dönmez

Graduate Thesis: Isolation of Lipase Producing Microorganisms From Olive Oil Mill Wastewater

Prof. Dr. Gönül Dönmez

AWARDS :

1.      The Council of Higher Education, International Post-Doctoral Research Scholarship, Faculty of Bioscience Engineering, Centre for Industrial Biotechnology, Biocatalysis and Enzyme Engineering, Gent University, Belgium, 2011.

2.     Erasmus, Faculty of Sciences, Department of Biochemistry and Microbiology, Laboratory for Protein Biochemistry and Biomolecular Engineering, Gent University, Belgium, 2006-2007.

3.       TÜBİTAK-BİDEB National PhD Scholarship (2005–2010).

4.       TÜBİTAK-BİDEB National Graduate Degree Scholarship (2003–2005).

5.       PhD Thesis Publication Award, 2010.

 Teaching (Lecturer of the following courses)

UNDER GRADUATE

GRADUATE

Biofuels

Microbial Bioenergy

Prokaryotic Diversity

Bioenergetics and Metabolism

General Biology I

General Microbiology I

General Microbiology Lab. I

General Microbiology II

General Microbiology Lab. II

SUPERVISION of PhD THESIS:

COMPLETED:

Ekin Demiray, Investigation of Bioethanol Production Potentials of Agricultural Wastes

CONTINUING:

Nazlıhan Tekin, scholarship holder (The Council of Higher Education 100/2000 PhD Programme) Thesis subject has not been determined. 

Hüseyin Kaan Kabadayı, scholarship holder (The Council of Higher Education 100/2000 PhD Programme) Thesis subject has not been determined.

Gülşah Büşra Yalçınkaya, Thesis subject has not been determined.

Gözde Bodur, Thesis subject has not been determined.

SUPERVISION of GRADUATE THESIS:

COMPLETED:

Gülşah Büşra Yalçınkaya, The Usage of Microorganisms for Lithium (I) Bioremoval, 2019.

Gözde Bodur, The Usage of Fungi for Textile Dyes Bioremoval, 2019.

İpek Özeren, The Usage of Fungal Biomass for Reactive Dyes Bioremoval, 2018

Banu Şeyma Ceyhun, Decolorization of Reactive Black 5 Dye with Halotorelant Yeasts, 2018.

Kaan Kabadayı, The Usage of Surfactants for Copper (II) Bioremoval, 2018.

Selin Işıldak, Investigation of Possibilities of Imidacloprid Removal by Microorganisms in, 2017.

Meltem Erdoğan, Determination of Dunaliella species as Raw Materials for bioethanol production, 2015.

CONTINUING:

Hatice Elçin Özkuzucu, Reactive Black 5 Surfactant Usage in Biodegradation of Textile Dye.

Badel Ergörünlü, Determination of the Effect of Agricultural Waste Usage on Biodiesel Production from Chlorella vulgaris Microalgae.

Benazir Bayyar, The Usage of Surfactants for Nickel (II) Bioremoval.

Ahzucan Gerbaga, thesis subject has not been determined.

Seda Keskin, thesis subject has not been determined.

Muhammed Emin Sekki, thesis subject has not been determined.

RESEARCH PROJECTS

NATIONAL:

1)     Karatay, S.E. “Optimization of enzymatic hydrolysis of pomegranate peels for use in biofuel production”, Ankara University Research Foundation, Project No: 19H043302, 2019 – (1 year).

2)  Karatay, S.E., Demiray, E. “Investigation of the Utilization Potentials of Different Agricultural Wastes in Bioethanol Production”, Ankara University Research Foundation, Project No: 17L0430007, 2017-2019.

3)  Karatay, S.E. “The investigation of apple and carrot pomaces usage for microbial biodiesel production”, The Scientific and Technological Research Council of Turkey, Project no: 216Z061 2017- 2018.

4)  Karatay, S.E., “Improving the efficiency of Dunaliella sp. biomass conversion to bioethanol” Ankara University Research Foundation, Project No: 14H0430004,2014-2015.

5)  Karatay, S.E., Erdoğan, M. “Determination the usage of Dunaliella species as a raw material for bioethanol production” Ankara University Research Foundation, Project No: 13L4240013,2013-2014.

6)  Dönmez, G.,  Karatay, S.E. “The extraction of yeast and fungal lipids by Soxhlet extraction system” Research Foundation of Ankara University, 2010-2011.

7)  Dönmez, G.,  Karatay, S.E. “The usage of microbial lipids and enzymes for biodiesel production”. Research Foundation of Ankara University, 2009-2011.

8)  Dönmez, G.,  Ertuğrul S.“ Determination of efficacy of microorganisms isolated from wastewater in treatment plants” Research Foundation of Ankara University, 2006-2007.

9)  Takaç, S.,  Dönmez, G.,  Ertuğrul S.,  Evren, Ü.D.  “Investigation of lipase production capacity of microorganisms isolated from different sources and their potential industrial usage ” Ankara University Biotechnology Institute 2005-2006.

10) Dönmez, G., Evren, Ü.D. Ertuğrul S. “Isolation of lipase producing microorganisms from oily wastes” Ankara University Biotechnology Institute , 2004-2005.

International:

1) Desmet, T., Tran, G.H., Karatay, S.E.” Loop engineering of cellobiose phosphorylase from Clostridium thermocellum” Special Research Council (BOF) of Ghent University, Project No: 01W01908, 2011-2012 (6 month).

2)  Desmet, T., Chaou, C., Karatay, S.E. “Engineering the acceptor spesificity of trehalose phosphorylase”. Special Research Council (BOF) of Ghent University, Project No: 01W01908, 2011-2012 (6 month).

3)   Savvides, S.N., Verstraete, K., Ertuğrul S. “Production of recombinant human Flt3 ligand for structural and biophysical studies”. Research Foundation Flanders (FWO Belgium), Project No: 3G064307ı, 2006-2007.

PUBLICATIONS in SCI INDEX

1)      Karatay, S.E*., Demiray, E. Dönmez, G., Efficient bioethanol production from pomegranate peels by newly isolated Kluyveromyces marxianus. Energy Sources, Part A: Recovery, Utilization, And Environmental Effects. 42, 709-718, 2020, (SCI) Q4.

2)      Demiray, E., Karatay, S.E.*, Dönmez, G., Improvement of Bioethanol Production from Pomegranate Peels via Acidic Pretreatment and Enzyme Hydrolysis. Enviromental Science and Pollution Research. 26, 29366-29378, 2019, (SCI) Q2

3)  Karatay, S.E.*, Demiray, E.,  Dönmez, G., Efficient approaches to convert Coniochaeta hoffmannii lipids into biodiesel by in-situ transesterification. In press, DOİ: 10.1016/j.biortech.2019.121321, Bioresource Technology. Volume 285, Article number 121321, 2019, (SCI) Q1.

4)     Karatay, S.E.*, Demiray, E. Dönmez, G., Bioethanol production by newly isolated halotolerant Kluyveromyces marxianus strains. Environmental Progress & Sustainable Energy, 38, 542-547, 2019, (SCI) Q3.

5)     Demiray, E., Karatay, S.E.*, Ekici, H., Dönmez, G. Introducing a new salty waste for second generation bioethanol production. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 40, 2070-2078, 2018, (SCI) Q4.

6)  Demiray, E., Karatay, S.E.*, Dönmez, G. Evaluation of Pomegranate Peel in Ethanol Production by Saccharomyces cerevisiae and Pichia stipitis. Energy,159, 988-994, (2018) SCI. Q1.

7)  Karatay, S.E.*, Dönmez, G., Aksu, Z. “Effective biosorption of phenol by the thermophilic cyanobacterium Phormidium sp.”. Water Science and Technology, 76, 3190-3194 (2017)  SCI-Exp. Q3.

8)   Karatay, S.E.*, Erdoğan, M., Dönmez, S. Dönmez, G. “Experimental investigations on bioethanol production from halophilic microalgal biomass”. Ecological Engineering,  95, 266-270, (2016) SCI. Q2.

9)   Demiray, E., Karatay, S.E.*, Dönmez, S. Dönmez, G. “The usage of carrot pomace for bioethanol production”. Journal of Chiliean Chemical Society, 61:2, 2996-2998, (2016)SCI. Q4.

10) Karatay, S.E.*, Kılıç, N.K., Dönmez, G. “Removal of Remazol Blue by azoreductase from newly isolated bacteria”. Ecological Engineering, 84, 301-304, (2015), SCI. Q2.

11) Karatay S.E.* “Usage of Thermophilic Cyanobacterial Biomass for Bioethanol Production” Environmental Progress and Sustainable Energy, 34, 903-907, (2015).  SCI. Q3.

12)  Karatay S.E.*, Gül Ü.D.E and Gönül Dönmez “Stimulation of Phenol Removal Efficiency of Aspergillus versicolor by Surfactants, a Promising Way to Treat Phenol-Containing Waste Waters” Journal of Surfactants and Detergents, 17, 1223-1228, (2014). SCI-exp. Q3.

13) Karatay S.E.*, and Gönül Dönmez “An economical phenol bioremoval method using Aspergillus versicolor and agricultural wastes as a carbon source” Ecological Engineering, 73, 224-228, (2014). SCI. Q2.

14) Karatay S.E.*, Gül Ü.D.E and Gönül Dönmez “Determination of Methylene Blue Biosorption by Rhizopus arrhizus in the presence of surfactants with different chemical structures”, Preparative Biochemistry & Biotechnology 44, 653-662, (2014). SCI. Q4.

15) Karatay S.E.* and Gönül Dönmez “Evaluation of biotechnological potentials of some industrial fungi in economical lipid accumulation and biofuel production as a field of use” Preparative Biochemistry & Biotechnology 44, 332-341, (2014). SCI. Q4.

16)  Taştan,B.E.,  Karatay S.E. And Gönül Dönmez "Bioremoval Of Textile Dyes With Different Chemical Structures By Aspergillus Versicolor İn Molasses Medium"Water Science & Technology, 66, 2177-2184(2012) SCI-Exp. Q3..

17) Kılıç, N.K., Karatay, S. E. Duygu, E. and Dönmez, G. Potential of Gonium spp. in Synthetic Reactive Dye Removal, Possible Role of Laccases and Stimulation by Triacontanol Hormone, Water, Air, & Soil Pollution, 222, 297-303 (2011) SCI. Q2.

18) Karatay, S. E. and Dönmez, G. “Microbial oil production from thermophile cyanobacteria for biodiesel production.” Applied Energy, 88, 3632-3635 (2011) SCI. Q1.

19)  Karatay, S.E., Dönmez, G. “Improving the lipid accumulation properties of the yeast cells for biodiesel production using molasses”. Bioresource Technology, 101, 7988-7990 (2010). SCI. Q1.

20) Aksu, Z., Ertuğrul, S.,Dönmez, G. “Methylene Blue biosorption by Rhizophus arrhizus: Effect of SDS (sodium dodecylsulfate) surfactant on biosorption  properties.” Chemical Engineering Journal, 158, 474-481 (2010). SCI. Q1.

21) Taştan, B.E., Ertuğrul, S.,Dönmez, G. “Effective bioremoval of reactive dye and heavy metals by Aspergillus versicolor.” Bioresource Technology, 101, 870-876 (2010). SCI. Q1.

22) Aksu, Z., Ertuğrul, S., Dönmez, G. “Single and binary chromium(VI) and Remazol Black B biosorption properties of Phormidium sp.” Journal of Hazardous Materials, 168, 310-318 (2009). SCI. Q1.

23) Verstraete, K., Koch, S., Ertuğrul, S., Vandenberghe, I., Aerts, M., Vandriessche, G., Thiede, C., Savvides, S.N. “Efficient production of bioactive recombinant human Flt3 ligand in E. coli.”  Protein Journal,28,57-65 (2009).  SCI-Exp

24)   Ertuğrul, S., San N.O., Dönmez, G. “Treatment of dye (Remazol Blue) and heavy metals using yeast cells with the purpose of managing polluted textile wastewaters.” Ecological Engineering, 35,128-134. (2009). SCI. Q2.

25) Ertuğrul, S., Bakır, M. and Dönmez, G. “Treatment of dye – rich wastewater by an immobilized thermophilic cyanobacterial strain: Phormidium sp.” Ecological Engineering, 32, 244-248. (2008) SCI. Q2.

26) Ertuğrul, S., Takaç, S. and Dönmez, G. “Isolation of lipase producing Bacillus sp. from olive mill wastewater and improving its enzyme activity” Journal of Hazardous Materials; 149, 720-724. (2007)  SCI. Q1.

27) Aksu, Z., Kılıç, N.K., Ertuğrul, S. and Dönmez, G. “Inhibitory effects of chromium(VI) and Remazol Black B on chromium(VI) and dyestuff removals by Tramates versicolor.” Enzyme and Microbial Technology,40,1167-1174 (2007). SCI. Q2.

International and national congress (Proceedings):

International congress (Proceedings):

Oral presentation:

Poster presentations:

1)     Bodur G., Demiray, E., Karatay, S.E., Dönmez, G. Bioremoval of Commonly Used Textile Dyes by Aspergillus sp. Internatıonal Eurasıan Conference On Scıence, Engıneerıng And Technology, 28-29 Haziran 2019, Ankara.

2)      Bodur G., Demiray, E., Karatay, S.E., Dönmez, G. Investigation of Brilliant Blue R Bioremoval Capacity of Trichoderma sp. Internatıonal Eurasıan Conference On Scıence, Engıneerıng And Technology, 28-29 Haziran 2019, Ankara.

3)    Özkuzucu h. E., Demiray, E., Karatay, S.E., Dönmez, G. Effect of Sodium Dodecyl Benzenesulfonate on the Biosorption of Reactive Black 5 by Yeast Cells. Internatıonal Eurasıan Conference On Scıence, Engıneerıng And Technology, 28-29 Haziran 2019, Ankara.

4)  Demiray, E., Karatay, S.E., Dönmez, G. Second Generartion Bioethanol Production By Yeast Cells, The 14th International Congress on Chemical and Proccess Engineering, Bologna 26-29 May 2019, Italy.

5)     Demiray, E., Karatay, S.E., Dönmez, G. “A Study on Bioethanol Production From Lignocellulosic Wastes” page 83, abstract book. Internatıonal Conference, Smart Bio“ 3-5 of May 2018, Kaunas Lithuania.

6)  Karatay, S.E., Demiray, E., Dönmez, G. “The Usage of Low Cost Fermentation Medium for Yeast Lipid Production” page 280, abstract book. Internatıonal Conference, Smart Bio“ 3-5 of May 2018, Kaunas Lithuania

7)    Demiray, E., Karatay, S.E., Dönmez, G. “Bioethanol Production From Five Carbon Sugars” page 96, abstract book. Internatıonal Conference „Smart Bio“ 3-5 of May 2018, Kaunas Lithuania

8)   Yalçınkaya, G.B., Karatay, S.E., Dönmez, G. “Copper(II) Bioremoval by Actively Growing Fungi” page 137, abstract book. Internatıonal Conference „Smart Bio“ 3-5 of May 2018, Kaunas Lithuania.

9)    Özeren, İ., Karatay, S.E., Dönmez, G. “Fungal Biosorption of the Remazol Brilliant Blue R and Optimization of Some Parameters page 173, abstract book. Internatıonal Conference,Smart Bio“ 3-5 of May 2018, Kaunas Lithuania.

10) Karatay, S.E., Demiray, E., Dönmez, G. “Improving Second Generation Bioethanol Production Via Enzymatic Hydrolysis” page 183, abstract book. Internatıonal ConferenceSmart Bio“ 3-5 of May 2018, Kaunas Lithuania.

11) Özeren, İ., Karatay, S.E., Dönmez, G. “The Usage of Dead and Living Rhizopus sp. Biomass for Pesticide Removal” page 279, abstract book. Internatıonal Conference „SmartBio“ 3-5 of May 2018, Kaunas Lithuania

12) Bodur, G., Karatay, S.E., Dönmez, G. “Mycoremoval of Reactive Dyes With Different Chemical Structures in Molasses Medium page 214, abstract book. Internatıonal Conference „Smart Bio“ 3-5 of May 2018, Kaunas Lithuania.

13) Karatay, S.E., Demiray, E., Dönmez, G. “Removal of Reactive Black 5 Dye with Different Microorganisms Widely Used in Textile Industry” International Water and Environment Congress, 22-24 March, 2018, Bursa.

14) Karatay, S.E., Özeren, İ., Dönmez, G. “Penicillium sp. Investigation of Possibilities of Using Biomass in Pesticide Removal in Wastewaters” International Water and Environment Congress, 22-24 March, 2018, Bursa.

15) Karatay, S.E., Demiray, E., Dönmez, G. “Use of carrot pulp as a fermentation medium in the biodegradation of heavy metals in wastewaters” International Water and Environment Congress, 22-24 March, 2018, Bursa.

16) Karatay, S.E., Özeren, İ., Dönmez, G. “Rhizopus sp. Use of Biomass as Biosorbent in the Treatment of Textile Dyes” International Water and Environment Congress, 22-24 March, 2018, Bursa.

17) Demiray, E., Yalçınkaya, G.B., Karatay, S.E., Dönmez, G. Reactive Red bioremoval with newly isolated yeast in the presence of apple pomace medium, Internatıonal Eurasian Conference On Biological And Chemical Sciences, page 1328, abstract book 26-27 April, 2018, Ankara

18) Yalçınkaya, G.B., Demiray, E., Karatay, S.E., Dönmez, G. The biological bioremoval of hexavalent chromium using newly isolated fungus, Internatıonal Eurasian Conference On Biological And Chemical Sciences, page 1329, abstract book, 26-27 April, 2018, Ankara

19) Karatay, S.E., Demiray, E., Dönmez, G. “The Bioremediation Of Hexavalent Chromium Using Agricultural Waste", XIXth Euroanalysis, page   . abstract book. 28 August-1 September 2017 Stockholm, Sweden

20) Karatay, S.E., Demiray, E., Dönmez, G. "The Usage Of Different Kluyveromyces Sp. Isolates For Ni (II) Bioremoval"  XIXth Euroanalysis, page   . abstract book. 28 August-1 September 2017 Stockholm, Sweden.

21) Karatay, S.E., Demiray, E., Dönmez, G. “Usage of carrot pomace for bioethanol production by Kluyveromyces sp.” FEMS 2017, page  . abstract book. July 9-13, 2017. Valencia-Spain.

22) Karatay, S.E., Demiray, E., Dönmez, G. “Utilization of Saccharomyces cerevisiae for bioethanol production from turnip juice discards” FEMS 2017, page  . abstract book. July 9-13, 2017. Valencia-Spain

23) Karatay, S.E., Dönmez, G. “A Study On Variables Affecting Biodiesel Production From Yeast Lipids After Soxhlet Extraction”, HEEP 2017, page  . abstract book. May 25-27, 2017. Budapest, Hungary

24) Karatay, S.E., Demiray, E., Dönmez, G. “Biological Removal of Reactive Black 5 by Micrococcus sp.”,HEEP 2017, page  . abstract book. May 25-27, 2017. Budapest, Hungary

25) Karatay, S.E., Demiray, E., Dönmez, G. “Copper (II) Removal From Aqueous Solutions By Growing Candida sp. in the Media Prepeared With Carrot Pomace”,HEEP 2017, page  . abstract book. May 25-27, 2017. Budapest, Hungary

26) Karatay, S.E., Demiray, E., Dönmez, G. “Efficient Bioethanol Production From Sugar   Beet Molasses By Pichia Stipitis ”,HEEP 2017, page  . abstract book. May 25-27, 2017. Budapest, Hungary

27) Karatay, S.E., Dönmez, G. “Removal Of Cu(II), Ni(II) And Cr(VI) Heavy Metals By Newly Isolated Yeasts”,HEEP 2017, page  . abstract book. May 25-27, 2017. Budapest, Hungary

28) Karatay, S.E., Dönmez, G. “The usage of Aspergillus sp. biomass for imidacloprid removal”. 3rd International Conference On Engineering And Natural Sciences. Abstract book, page 803, May 3-7, 2017, Budapest, Hungary

29) Karatay, S.E., Demiray, E., Dönmez, G. “Bioremoval of textile dyes by Bacillus sp. isolates in aerobic conditions. 3rd International Conference On Engineering And Natural Sciences. Abstract book, page 650, May 3-7, 2017, Budapest, Hungary

30) Demiray, E., Karatay, S.E., Dönmez, G. “Determining of Bioethanol Production Capacity of Kluyveromyces sp. in the presence of Apple Pomace” 2nd IWA Regional Symposium on Water, Wastewater and Environment the past present and future of the world’s water resources, page. Abstract book. March 22-24, 2017, Çeşme, İzmir, Türkiye

31) Demiray, E., Karatay, S.E., Dönmez, G. “Bioethanol Production from Turnip Juice Discards by Pichia stipitis” 2nd IWA Regional Symposium on Water, Wastewater and Environment the past present and future of the world’s water resources, page. Abstract book. March 22-24, 2017, Çeşme, İzmir, Türkiye

32) Kabadayı, H.K., Demiray, E., Karatay, S.E., Dönmez, G. “Reactive Black 5 Removal with Saccharomyces cerevisiae in the Presence of Sugar Beet Molasses Medium” 2nd IWA Regional Symposium on Water, Wastewater and Environment the past present and future of the world’s water resources, page. Abstract book. March 22-24, 2017, Çeşme, İzmir, Türkiye

33) Kabadayı, H.K., Demiray, E., Karatay, S.E., Dönmez, G. “Bioremoval of Copper (II) Ions By Candida sp. in Molasses Medium” 2nd IWA Regional Symposium on Water, Wastewater and Environment the past present and future of the world’s water resources, page. Abstract book. March 22-24, 2017, Çeşme, İzmir, Türkiye

34)  Karatay S.E., Dönmez, G. Isolation experiments for Cu(II) tolerant yeast cells. X. International Biometals Symposium 10-15 July, Abstract Book, p:132, 2016, Dresden, Germany.

35) Karatay S.E., Dönmez, G. Chromium(VI) removal by actively growing yeast cells. X. International Biometals Symposium p.131, 10-15 July, Abstract Book, p:131, 2016, Dresden, Germany.

36) Karatay S.E., Dönmez, G. The usage of yeast cells for Nickel(II)  bioremoval. X. International Biometals Symposium 10-15 July, Abstract Book, p:133, 2016, Dresden, Germany.

37)  Demiray, E., Karatay S.E., Dönmez, G. The isolation of novel yeast strains for bioethanol production. 17th European Congress on Biotechnology. 3- 7 July 2016, Abstract book: S88, Krakow Poland.

38) Bostancı, C., Karatay S.E., Kılıç, N.K., Dönmez, G. Development of alternative pretreatment method for bioethanol production from peanut shells. Power of microbes in industry and environment, 28 September 01 October, 2016, Krk, Croatia,

39)  Karatay S. E., Ceyhun, B.Ş., Dönmez, G. Bioremoval of textile dyes with different chemical structures by using newly isolated yeasts. Power of microbes in industry and environment, 28 September 01 October, 2016, Krk, Croatia,

40) Demiray, E., Karatay S.E., Dönmez, G. Optimization studies about bioethanol production from yeast strains. Power of microbes in industry and environment, 28 September 01 October, 2016, Krk, Croatia,

41) Karatay S. E., Kiliç, N. K. and Dönmez G. Evaluation of bacterial enzymes in degradation of textile dyes. 6th Congress of European Microbiologists (FEMS) 7-11 June 2015, Maastricht, Netherlands.

42) Erdoğan, M., Karatay S. E., Dönmez, S. and Dönmez G. Bioethanol production from agricultural wastes by Saccharomyces cerevisiae 6th Congress of European Microbiologists (FEMS) 7-11 June 2015, Maastricht, Netherlands.

43) Karatay S.E., Kılıç N.K., Dönmez G.”Microbial removal of remazol blue by different bacteria” Federation of European Biochemical Societies CONGRESS 2014, 30th August-4th September, Paris, France.

44) Demiray E., Karatay S.E., Dönmez S., Dönmez G “The usage of carrot pomace as a feedstock for bioethanol production” 16th European congress on Biotechnology, 13-16 July 2014, Edinburgh, Scotland.

45) Erdoğan M., Karatay S.E., Dönmez S., Dönmez G “Using the biomass of halophilic Dunaliella sp. microalgae for bioethanol production”,  “Federation of European Biochemical Societies CONGRESS 2013 “Mechanisms in Biology”06 -11 June, 2013, Rusya – St. Petersburg.

46) Karatay S.E. and G. Dönmez  “Investigating transesterification reaction parametres of Candida tropicalis lipids for biodiesel production”, “Federation of European Biochemical Societies CONGRESS 2013 “Mechanisms in Biology”06 -11 June, 2013, Rusya – St. Petersburg

47)  Karatay S.E. and G. Dönmez  “Fungal biosorption of methylene blue by using dodeclybenzene sulfonic acid” 5th International symposium on biosorption and bioremediation, page 77. abstract book. 24- 28 June, 2012, Prague, Czech Republic

48) Karatay S.E. and G. Dönmez  “Using Aspergillus versicolor mycelia for biodiesel production” First International Symposium on Microbial Resource Management in Biotechnology: concepts & applications, page 45. abstract book. June 30-July 1, 2011, Gent, Belgium

49) Karatay S.E. and G. Dönmez  "Optimization of lipid contents as a raw material for biodiesel production in cyanobacteria cells" First International Symposium on Microbial Resource Management in Biotechnology: concepts & applications. Page 47. abstract book. June 30-July 1, 2011, Gent, Belgium

50) Ertuğrul S. and Dönmez  G. “Biosorption of phenol using a thermophil cyanobacteria” FEMS 3rd Congress of European Microbiologists, page 148, abstract CD.  June 28-July 2, 2009, Göteborg, Sweden

51)   Ertuğrul S. and Dönmez  G.   “Cultivation of microalgae and yeast cells as a raw material for biodiesel” FEMS 3rd Congress of European Microbiologists, page 168, abstract CD, June 28-July 2, 2009, Göteborg, Sweden

52) Ertit B., Ertuğrul S., Dönmez  G.   “Removal Of Copper(II), Nıckel(II) And Reactive Dye From Wastewater by Aspergillus sp.” 1st Conferance on Hazardous Waste Management, page 459-460. abstract book. October 1-3 2008, Crete, Greece

53)  Ertuğrul, S., N. Koçberber, G. Dönmez and S. Takaç, “Investigation of The Lipase Activity of The Bacteria Isolated from Olive Mill Wastewater”. 12th European Congress on Biotechnology, page S103, abstract book. August 21-24, 2005, Copenhagen, Denmark

National congress (Proceedings):

Oral Presentations:

1)  Ertuğrul, S., ve Dönmez, G. The usage of yeast lipids as a raw material for biodiesel production”, 16th National Biotechnology Congress, 2009, Antalya.

2)   Ertuğrul, S., ve Dönmez, G. The usage of bacteria isolated from textile waste waters for the treatment of color contamination”, 19th National Biology Congress, 2008,Trabzon.

3)      Ertuğrul, S., ve Dönmez, G. The combined effects of Remazol Blue and Copper (II) on Rhodotorula sp. isolated from waste waters”, 15 th National Biotechnology Congress, 2007,Antalya.

Poster presentations:

1)      Demiray E., Karatay S.E., Dönmez S., Dönmez G., The usage of Pichia stipitis for bioethanol production from carrot pomace” 22th National Biology Congress, 2014, Eskişehir.