Email: gulhan@uidaho.edu
Office: Agricultural Biotechnology, Room 205
Phone: (208) 885-7771
Fax: (208) 885-9752

Recent Articles

Sequencing Key Food Bacteria Genomes

Genomic Comparison of Lactic Acid Bacteria Published

PROFILE

Recent Research Publication:

Soeryapranata, E., J.R. Powers, and G. Ünlü. 2008. Degradation of αs1-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. 3^rd 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. 1^st 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. 8^th 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. 8^th 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. 8^th 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. 8^th 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. 8^th 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. 8^th 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.3^rd 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. 2^nd 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 104^th 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 103^rd 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. 2^nd 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 103^rd 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 102^nd General Meeting. Abstract N-69. Salt Lake City, Utah.