PROF.DR. AFİFE GÜVENÇ    
Name : AFİFE
Surname : GÜVENÇ
E-Mail : guvenc@eng.ankara.edu.tr
Phone Number : 03122033502
Title : PROF.DR.
Unit : FACULTY OF ENGINEERING
Department : Chemical Engineering Department
Personal Information

EDUCATION

1) Undergraduate                : Ankara University, Faculty of Science,  Dept. of

                                            Chemical Engineering, June 1984.

2) Graduate                        : Ankara University, Faculty of Science,  Dept. of

                                            Chemical Engineering, December 1987.3) Doctorate                       : Ankara University, Faculty of Science,  Dept. of

                                            Chemical Engineering, January 1997.

4) Assistant Professor          : Ankara University, Faculty of Science,  Dept. of

                                             Chemical Engineering, April 2000.

5) Associate Professor         : Ankara University, Faculty of Engineering,  Dept. of

                                             Chemical Engineering, May 2003.

6) Professor                         : Ankara University, Faculty of Engineering,  Dept. of

                                              Chemical Engineering, October 2009.

 

 

CAREER / EMPLOYMENT

 

• 1987 – 1997,  Research and Teaching Assistant, Ankara University,Faculty of Science, Dept. of Chemical Engineering

   1997 – 2000, PhD , Research and Teaching Assistant, Ankara University, Faculty of Science, Dept. of Chemical Engineering

   2000 - 2003 , Assistant Professor, Ankara University, Faculty of Engineering,   Dept. of Chemical Engineering

  2003- 2009 , Associate Professor, Ankara University, Faculty of Engineering,   Dept. of Chemical Engineering

 2009-           , Professor, Ankara University, Dept. of Chemical Engineering

 

 

 PUBLICATIONS

 

1. A. Güvenç, M. Erol, A. Çalımlı, Y. Sarıkaya, 1994. Investigation of properties of Avgamasya asphaltite, Fuel Processing Technology, 38, p.211-221.    

 

2. A. Güvenç, Ü. Mehmetoğlu, A. Çalımlı, 1998. Supercritical CO2 extraction of ethanol from fermentation broth in a semicontinuos system, The Journal of Supercritical Fluids , 13, p.325-329.          

 

3. A. Güvenç, Ü. Mehmetoğlu, A. Çalımlı, 1999. Supercritical CO2 extraction of ethanol, Turkish Journal of Chemistry , 23(3), p.285-291.            

 

4. N. Kapucu, A.Güvenç, Ü.Mehmetoğlu, A.Çalımlı, 1999. Reactive extraction of organic acids by supercritical CO2, Reviews in Chemical Engineering, 15(4), 233-243.            

 

5. A. Koparan, A. Güvenç, N. Kapucu, Ü., Mehmetoğlu, ve A. Çalımlı, 2001, “Separation process of citric acid with tertiary amines / diluents in supercritical CO2”, Turkish Journal of Chemistry, 25(4), p.477-484.                

 

6. A.Güvenç, N.Kapucu and Ü.Mehmetoğlu, 2002. “The Production of Isoamyl Acetate Using Immobilized Lipases in Solvent-free System”, Process Biochemistry, 38, 379-386 .

 

7. A., Güvenç, N. Kapucu, E., Bayraktar,and Ü., Mehmetoğlu, 2003. Optimization of The Enzymatic Production of Isoamyl Acetate with Novozym 435 from Candida antarctica, Chemical Engineering Communications, 190, No:5-8, 948-961. 

      

8. N., Kapucu, A., Güvenç, H., Kapucu, Ü., Mehmetoğlu, and A., Çalımlı, 2003. “Lipase Catalyzed Synthesis of Oleyl Oleate : Optimization by Response Surface Methodology” , Chemical Engineering Communications, 190, No:5-8, 779-796.

 

9. A., Güvenç, Ü.,Mehmetoğlu, T., Mehmetoğlu, 2004. “Effects of Operational Parameters and Ultrasonic Pretreatment on Supercritical CO2 Extraction of Diesel Fuel from Soil”, Energy Sources, 26(1), 77-82.              

 

10. İ.S. Şanal, A. Güvenç, U. Salgın, Ü. Mehmetoğlu, A. Çalımlı, 2004. “Recycling of Apricot Pomace by Supercritical CO2 Extraction”, The Journal of Supercritical Fluids, 32, 221 - 230. 

 

 11. A. Güvenç, N. Kapucu, H. Kapucu, Ö.Aydoğan, Ü. Mehmetoğlu, 2007.

      “Enzymatic Esterification of Isoamyl Alcohol Obtained from Fusel Oil:

       Optimization by Response Surface Methodolgy”, Enzyme and Microbial

      Technology, 40, 778 - 785.

 

12. A. Güvenç, Ö. Aydoğan, N. Kapucu, Ü. Mehmetoğlu, 2007.“Production of Isoamyl Acetate from Fusel Oil”, Gazi Univ. Eng. Fac. Pub., 22(4), 801-808.

 

13. T. A. Onat, H. T. Gümüşdere, A. Güvenç, G. Dönmez, Ü. Mehmetoğlu, 2010. “Decolorization of Textile Azo Dyes by Ultrasonication and Microbial Removal”, Desalination, 255 (1-3), 154-158.(SCI)

 

14. Uçar B, Güvenç A, Mehmetoglu Ü (2011) Use of Aluminium Hydroxide Sludge as Adsorbents for the Removal of Reactive Dyes: Equilibrium, Thermodynamic, and Kinetic Studies. Hydrology : Current Research, 2:112. doi:10.4172/2157- 7587.1000112. (Open Acces: http://omicsonline.org/2157-7587/2157-7587-2-112.php)

 

COURSES

 

Undergraduate: Introduction the Chemical Engineering, Chemical Technologies, Instrumental Analyses, Chemical Engineering Laboratories II and III, Research Techniques I and II, Mass and Energy Balances, Thermodynamic, Heat Transfer

 

Graduate : Biotechnological Seminars, Principle Biotechnological Techniques, Supercritical Fluid Technology.

 

RESEARCH INTERESTS

 

 Separations:

    - Extraction of Alcohols and Organic Acids from Fermentation Media with Supercritical Fluids

    - Extraction of Antioxidants from Natural Products with Supercritical Fluids

    - Remove of Diesel Oil from Contaminated Soil with Supercritical Fluids

Enzymatic Reactions ( Production of Esters - with or without supercritical fluid)

• Effect of Ultrasound on Enzymatic Reactions

• Effect of Ultrasound on Degradation Reactions

Using Ultrasound as Abiotic Elicitor

• Degradation of Textile Dyes by ( Ultrasound or Adsorption or Combined Methods)

• Recyclability of  Process Waste of Fruit Juice and Wine as Antioxidant Resource

 

 

RECENT PROJECTS

 

Enhance of Resveratrol Production Efficiency in Grapevine using Abiotic Elicitors for in vivo and in vitro conditions, Ankara University, Institute of Biotechnology Research Project, Project Number: 2005-163.

 

• Degradation of Azo Industry Waste Water by Ultrasound, Ankara

  University, Scientific Research Project Coord., Project  Number: 20050745006.     

 

• Removal of  Dyes from Textile Waste Water using Combined Advanced Oxidation

   Methods, Ankara University, Scientific Research Project Coord., Project  Number:

  11B4343003.

 

• Investigation of Ultrasound Effect on The Concentration of trans-Resveratrol and

  Antioxidant Capacity of Blueberry Pomace,  Student-Oriented Research Project,

  Ankara University, Scientific Research Project Coord., Project  Number:

  11Ö4343001