School of Food Science

Gülhan Ünlü, Ph.D.

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Faculty

Barbara Rasco
Interim Director

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Carolyn Hovde Bohach
Boon Chew

Jeff Culbertson
Charlie Edwards
Girish Ganjyal
James Harbertson
Thomas Henick-Kling
Helen Joyner
Karen Killinger
Jeff Kronenberg
Amy Lin
Scott Minnich
Greg Möller
Giuliana Noratto
Andrzej Paszczynski
Carolyn Ross
Dojin Ryu
Brennan Smith
Denise Smith
Gülhan Ünlü
Mei-Jun Zhu
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unlu-3-13

Associate Professor

 

 

 

OFFICE: Agricultural Biotechnology, Room 205
PHONE: (208) 885-7771
E-MAIL: gulhan@uidaho.edu
FAX: (509) 335-4815

 

Dr. Gulhan Unlu has been on the University of Idaho faculty since 2000. She is an Associate Professor within the School of Food Science. She is also an Adjunct Associate Professor at Washington State University. Prior to joining the University of Idaho, Dr. Unlu conducted postdoctoral research at the National Renewable Energy Laboratory in Golden, Colorado. She holds an M.S. degree in Food Science and a Ph.D. degree in Food Science with emphasis on Food Microbiology and a minor in Bacteriology, both from the University of Wisconsin-Madison.

Dr. Unlu is currently an instructor for two senior-level food microbiology courses and a senior-level seminar course at the University of Idaho and Washington State University. She has presented guest lectures in diverse courses in sciences, including Introduction to Food Science, Food Toxicology, Exploring International Agriculture, Biotechnology and Society, and Molecules of Death. She has taught course modules in engineering courses, including Biomass and Biorefinery, Conversion of Biomass to Biofuels, and Bioprocess Engineering. Dr. Unlu has also developed and taught weeklong courses in introductory and advanced food microbiology to serve the food industry.

Research Interests

Dr. Unlu’s research interests are in the areas of food microbiology, dairy microbiology, food biotechnology, microbial food safety, food biopreservation, bioactive packaging of foods, and bioconversion of agricultural and industrial waste into value-added products. Dr. Unlu is an active member of the Institute of Food Technologists. She also serves as the associate editor of the Journal of Probiotics and Antimicrobial Peptides.

Outreach Activities

Introductory and Advanced Food Microbiology Short Courses

Courses Taught

  • FS/MMBB 416: Food Microbiology Lecture
  • FS/MMBB 417: Food Microbiology Laboratory

For descriptions of the courses, see Courses page.

Education

University of Wisconsin-Madison, Madison, W
University of Wisconsin-Madison, Madison, W
Hacettepe University, Ankara, Turkey
Ph.D., Food Science
M.S., Food Science
B.S., Food Engineering
1998
1992
1987

Recent Research Publications

  • Soeryapranata, E., J.R. Powers, and G. Ünlü. 2008. Degradation of ?s1-CN f1-23 by aminopeptidase N and endopeptidases E, O, O2, and O3 of Lactobacillus helveticus WSU19 under cheese ripening conditions. Int. Dairy J. 18:178-186.
  • Soeryapranata, E., J.R. Powers, and G.Ünlü. 2007. Cloning and characterization of debittering peptidases, PepE, PepO, PepO2, PepO3, and PepN, of Lactobacillus helveticus WSU19. Int. Dairy J.17:1096-1106.
  • K. Makarova, A. Slesarev, Y. Wolf, A. Sorokin, E. Koonin, A. Pavlov, V. Karamychev, N. Polouchine, V. Shakhova, B. Mirkin, I. Grigoriev, Y. Lou, D. Rohksar, S.M. Lucas, K. Huang, D.M. Goodstein, T.H. Hawkins, V. Plengvidhya, D. Welker, J. Hughes, Y. Goh, A. Benson, K. Baldwin, J.-H. Lee, I. Dias, B. Dosti, V. Smeianov, W. Wechter, R. Barabote, G. Lorca, R. Barrangou, E.  Alterman, B. Ganesan, X. Yie, H. Rawsthorne, D. Tamir, C. Parker, F. Breidt, J. Broadbent, R. Hutkins, D. O’Sullivan, J. Steele, G. Ünlü, M. Saier, T.R. Klaenhammer, P. Richardson, S. Kozyavkin, B. Weimer, D.A. Mills. 2006. Comparative genomics of the lactic acid bacteria. PNAS 103:15611-15616.
  • Agarwal, S., K. Sharma, B.G. Swanson, G.Ü. Yüksel, and S. Clark. 2006. Non-starter lactic acid bacteria biofilms and calcium lactate crystals in Cheddar cheese. J. Dairy Sci. 89:1452-1466.
  • Dimitrieva-Moats, G.Yu., R.L. Crawford, and G.Ü. Yüksel. 2006. The nature of plant growth-promoting effects of a pseudoalteromonad associated with the marine algae Laminaria japonica and linked to catalase excretion. J. Appl. Microbiol. 100:1159-1169.
  • Weekes, J., and G.Ü. Yüksel. 2004. Molecular characterization of two lactate dehydrogenase genes with a novel structural organization on the genome of Lactobacillus sp. MONT4. Appl. Environ. Microbiol. 70 (10):6290-6295.
  • Dimitrieva, G.Yu., G.Ü. Yüksel, L.A. Minskaya, T.N. Kalenik. 2003. The nature of a biostimulator activity for cell growth excreted by the Associative Bacterium of Laminaria Algae. Proc. Microbiol. Symp. With Int. Component. “Basic and Applied Aspects of Microbiology on the Far East”. Vladivostok, Russia. January 31:41-44.

Recent Research Presentations

  • He, B., K. Huber, G. Ünlü, A. McDonald, S. Chen, B. Van Wie, R.M. Worden. 2008. Offering a biomass and biorefinery curriculum to undergraduate seniors and graduate students. 2008 NACTA/SERD Conference. Abstract 34. Logan, Utah.
  • He, B., K. Huber, A. McDonald, G. Ünlü, S. Chen, and B. Van Wie. 2007. Offering a biomass and biorefinery curriculum to undergraduate seniors and graduate students. American Society for Agricultural and Biological Engineers. Abstract CE 7. Minneapolis, MN.
  • Smith M, K. Hendrix, and G. Ünlü. 2007. Use of nisin as a biopreservative against Enterobacter sakazakii. Society for Industrial Microbiologists. 2007 Annual Meeting and Exhibition. Abstract 4197. Denver, CO.
  • Dimitrieva-Moats, and G.Ü. Yüksel. 2006. Cloning and characterization of a catalase enzyme with successful application in the repair and detection of heat-injured foodborne pathogenic bacteria. Institute of Food Technologists (IFT) Annual Meeting. Abstract 054A-07. Orlando, FL.
  • Ionita, C., and G.Ü. Yüksel. 2006. Inhibition of Listeria monocytogenes in hot dogs by surface application of powdered bacteriocins from lactic acid bacteria. Institute of Food Technologists (IFT) Annual Meeting. Abstract 003A-15. Orlando, FL.
  • Ionita, C., and G.Ü. Yüksel. 2006. Production of Antilisterial Bacteriocins from Lactic Acid Bacteria in Dairy-Based Media. First International Symposium on Food, Veterinary, and Medical Applications of Antimicrobial Peptides. AMSII15. Nantes, France.
  • Ionita, C., and G.Ü. Yüksel. 2006. Biopreservation of Hot Dogs by Surface Application of Freeze-Dried Bacteriocin Preparations. First International Symposium on Food, Veterinary, and Medical Applications of Antimicrobial Peptides. AMSIV25. Nantes, France.
  • Dimitrieva-Moats, and G.Ü. Yüksel. 2005. Prospective use of freeze-dried preparations of bacteriocins from lactic acid bacteria to inhibit Listeria monocytogenes and Staphylococcus aureus in dairy products. Institute of Food Technologists (IFT) Annual Meeting. Abstract 86D-26. New Orleans, LA.
  • Ionita, C., and G.Ü. Yüksel. 2005. Production of antilisterial bacteriocins from lactic acid bacteria in dairy-based media. Institute of Food Technologists (IFT) Annual Meeting. Abstract 67-4. New Orleans, LA.
  • Soeryapranata, E., J.R. Powers, and G.Ü. Yüksel. 2005. Degradation of chymosin-derived peptides, beta-CNf193-209 and alphas1-CN f1-23, by general aminopeptidase N and endopeptidases E, O, O2, and O3 from Lactobacillus helveticus WSU19. Institute of Food Technologists (IFT) Annual Meeting. Abstract 31-2. New Orleans, LA. 3rd place in the IFT’s Dairy Division Paper Competition.
  • Soeryapranata, E., G.Ü. Yüksel, and J.R. Powers. 2005. Cloning and characterization of the endopeptidase O, O2, and O3 genes from Lactobacillus helveticus WSU19. Institute of Food Technologists (IFT) Annual Meeting. Abstract 17-2. New Orleans, LA. 1st place in the IFT’s Biotechnology Division Paper Competition.
  • Broadbent, J., J. Steele, A. Bhattacharyya, T. Walunas, M. van de Guchte, E. Maguin, and G. Yüksel. 2005. Comparative genome analysis of the obligately homofermentative lactic acid bacterium Lactobacillus delbrueckii subsp. bulgaricus. 8th Symposium on Lactic Acid Bacteria. Abstract 443. Egmond aan Zee, The Netherlands. Lactic Acid Bacteria Industrial Platform (LABIP) Award.
  • Ionita, C., and G.Ü. Yüksel. 2005. Comparisons among antilisterial bacteriocins from lactic acid bacteria and their production in dairy-based media. 8th Symposium on Lactic Acid Bacteria. Abstract 314. Egmond aan Zee, The Netherlands.
  • Maurin, C.A., G.Ü. Yüksel, J.J. Weekes, E. Soeryapranata, and C.C. Vaury. 2005. Cloning of genes that encode for L(+) lactate racemization activity in Lactobacillus sp. MONT4, Lactobacillus gasseri ATCC 33323, Lactobacillus helveticus CNRZ32, and Pediococcus pentosaceus ATCC 25745. 8th Symposium on Lactic Acid Bacteria. Abstract 330. Egmond aan Zee, The Netherlands.
  • Soeryapranata, E., G.Ü. Yüksel, and J.R. Powers. 2005. Cloning and characterization of endopeptidases E, O, O2, O3 and general aminopeptidase N from Lactobacillus helveticus WSU19. 8th Symposium on Lactic Acid Bacteria. Abstract 310. Egmond aan Zee, The Netherlands.
  • Wang, T., and G.Ü. Yüksel. 2005. Bioconversion of potato starch to lactic acid using amylolytic lactic acid bacteria. 8th Symposium on Lactic Acid Bacteria. Abstract 308. Egmond aan Zee, The Netherlands.
  • Weekes, J.J., and G.Ü. Yüksel. 2005. A novel genomic arrangement of lactate dehydrogenases in Lactobacillus sp. MONT4, a lactobacilli with phylogenetic and metabolic significance. 8th Symposium on Lactic Acid Bacteria. Abstract 334. Egmond aan Zee, The Netherlands.
  • Agarwal, S., S. Clark, B.G. Swanson, and G.Ü. Yüksel. 2004. Gas flushed packaging contributes to calcium lactate crystals in Cheddar cheese. Institute of Food Technologists (IFT) Annual Meeting. Abstract 46-4. Las Vegas, NV.3rd place in the IFT’s Dairy Division Paper Competition.
  • Dimitrieva-Moats, G., C. Ionita, M.N. Alotaibi, and G.Ü. Yüksel. 2004. Comparative studies on bacteriocin producing lactic acid bacteria (LAB) that are active against Listeria monocytogenes and Staphylococcus aureus. Institute of Food Technologists (IFT) Annual Meeting. Abstract 33D-12. Las Vegas, NV.
  • Dimitrieva-Moats, G., M.N. Alotaibi, and G.Ü. Yüksel. 2004. Prospective use of a catalase from Pseudoalteromonas porphyrae MMM18 in the repair of metabolically-injured foodborne pathogenic bacteria. Institute of Food Technologists (IFT) Annual Meeting. Abstract 114D-26. Las Vegas, NV.
  • Soeryapranata, E., J.R. Powers, and G.Ü. Yüksel. 2004. Cloning and characterization of peptidases from Lactobacillus helveticus WSU-19, a lactobacilli with industrial significance. Institute of Food Technologists (IFT) Annual Meeting. Abstract 99A-22. Las Vegas, NV. 2nd place in the IFT’s Student Association/Phi Tau Sigma/Procter & Gamble Graduate Paper Competition.
  • Wang,T., and G.Ü. Yüksel. 2004. Production of lactic acid from off-grade and small potatoes and potato processing waste using amylolytic lactic acid bacteria (LAB). Institute of Food Technologists (IFT) Annual Meeting. Abstract 99A-14. Las Vegas, NV.<
  • Yüksel, G.Ü., J. Weekes, C. Maurin, C. Vaury, and S. Clark. 2004. Cloning and characterization of a gene that encodes for lactate racemization activity. American Society for Microbiology 104th General Meeting. Abstract O-085. New Orleans, LA.
  • Agarwal, S., S. Clark, B.G. Swanson, and G.Ü. Yüksel. 2003. Non starter lactic acid bacteria and calcium lactate crystal formation in Cheddar cheese. Institute of Food Technologists (IFT) Annual Meeting. Abstract 14A-35. Chicago, IL.
  • Dimitrieva, G. Yu., and G.Ü. Yüksel. 2003. Characterization of a marine-algae associated pseudoalteromonad exhibiting high biostimulator activity for cell growth linked to the overproduction of an excreted catalase. American Society for Microbiology 103rd General Meeting. Abstract N-154. Washington, D.C.
  • Weekes, J., C.A. Maurin, and G.Ü. Yüksel. 2003. Transcriptional analysis and distribution of two lactate dehydrogenase genes with a novel structural organization on the Lactobacillus sp. MONT4 genome. Institute of Food Technologists (IFT) Annual Meeting. Abstract 76B-1. Chicago, IL. 2nd place in the IFT’s Biotechnology Division Paper Competition.
  • Weekes, J. and G.Ü. Yüksel. 2003. A novel structural organization of two lactate dehydrogenase genes on the genome of a Lactobacillus strain isolated from high-temperature fermenting grape musts. American Society for Microbiology 103rd General Meeting. Abstract 1113. Abstract O-090. Washington, D.C. ASM (Division O) Corporate Activities Program Travel Grant Award.
  • Dimitrieva, G., and G.Ü. Yüksel. 2002. The nature and biological effects of a strong biostimulator for cell growth excreted by a marine bacterium of Pseudoalteromonada group. American Society for Microbiology 102nd General Meeting. Abstract N-69. Salt Lake City, Utah.
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