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Jeff R. Broadbent

Jeff R. Broadbent
Professor
Dept: Food Sciences
Location:  NFS 314
Office Phone:  435-797-2113
Fax:  435-797-2379
8700 Old Main Hill
Logan, Utah 84322
Webpage:  www.nfs.usu.edu

Research Interests: 

My research interests have principally involved the physiology and genetics of lactic acid bacteria as they relate to the role of these microbes in the development of cheese flavor and functionality.  For the past 5 years, my group has been heavily involved in genomic analysis of lactic acid bacteria, and is currently involved in genome sequencing efforts for several lactic acid bacteria including Lactobacillus helveticus and Lactobacillus casei.  More recently, we have become involved in probiotics research with lactobacilli and Bifidobacteria sp., as well as food safety research related to the control of Listeria monocytogenes in ready to eat foods.

Recent Publications:

  • Cogan, T. M., J. Steele, J. Broadbent, N. P. Shah, and Z. Ustunol.  2007.  Advances in starter cultures and cultured foods. J. Dairy Sci. 90:4005-4021.
  • Cai, H., B. T. Rodríguez, W. Zhang, J. R. Broadbent, and J. L. Steele.  2007.  Genetic and phenotypic characterization of Lactobacillus casei isolated from different ecological niches suggests frequent recombination and niche specificity.  Microbiol. 153:2655-2665.
  • Lee, W.-J., D. S. Banavara, J. E. Hughes, J. K. Christianen, J. L. Steele, J. R. Broadbent, and S. A. Rankin.  2007.  Role of cystathionine β-Lyase in amino acid catabolism to sulfur volatiles by genetic variants of Lactobacillus helveticus CNRZ 32.  Appl. Environ. Microbiol. 73:3034-3039.
  • Smeianov, V. V., P. Wechter, J. R. Broadbent, J. E. Hughes, B. Rodriguez, T. K. Christensen, Y. Ardo, and J. L. Steele.  2007.  Comparative high-density microarray analysis of gene expression during growth of Lactobacillus helveticus in milk versus rich culture medium.  Appl. Environ. Microbiol. 73:2661-2672.
  • Burne, R. A., D. Bessen, J. Broadbent, and J.-P. Claverys.  2007.  The seventh international conference on the genetics of Streptococci, Lactococci and Enterococci.  J. Bacteriol. 188:1209-1218.
  • K. Makarova, A. Slesarev, Y. Wolf, A. Sorokin, B. Mirkin, E. Koonin, A. Pavlov, N. Pavlova, V. Karamychev, N. Polouchine, V. Shakhova, I. Grigoriev, Y. Lou, D. Rohksar, S. Lucas, K. Huang, D. M. Goodstein, T. Hawkins, V. Plengvidhya, D. Welker, J. Hughes, Y. Goh, A. Benson, K. Baldwin, J.-H. Lee, I. Díaz-Muñiz, B. Dosti, V. Smeianov, W. Wechter, R. Barabote, G. Lorca, E. Altermann, R. Barrangou, B. Ganesan, Y. Xie, H. Rawsthorne, D. Tamir, C. Parker, L. McKay , F. Breidt, J. Broadbent, R. Hutkins, D. O’Sullivan, J. Steele, G. Unlu, M. Saier, T. Klaenhammer, P. Richardson, S. Kozyavkin, B. Weimer, and D. Mills.  2006.  Comparative genomics of the lactic acid bacteria.  Proc. Natl. Acad. Sci. USA 103:15611-15616.
  • Boucher, B., C. Brotherson, and J. R. Broadbent.  2006.  Effect of starter and nonstarter lactic acid bacteria on medium redox.  Aust. J. Dairy Technol. 61:116-118.
  • Steele, J. L., M. F. Budinich, H. Cai, S. C. Curtis, and J. R. Broadbent.  2006.  Diversity and metabolic activity of Lactobacillus casei in ripening cheddar cheese.  Aust. J. Dairy Technol. 61:53-60.
  • Carunchia Whetstine, M.E., M.A. Drake, J. R. Broadbent, and D. McMahon.  2006.  Enhanced nutty flavor formation in Cheddar cheese made with a malty Lactococcus lactis adjunct culture. J. Dairy Sci. 89:3277-3284.
  • Ventura, M., C. Canchaya, V. Bernini, E. Altermann, R. Barrangou, S. McGrath, M. J. Claesson, Y. Li, S. Leahy, C. D. Walker, R. Zink, E. Neviani, J. Steele, J. Broadbent, T. R. Klaenhammer, G. F. Fitzgerald, P. O’Toole, and D. van Sinderen.  2006.  Comparative genomics and transcriptional analysis of prophages identified in the genomes of Lactobacillus gasseri, Lactobacillus salivarius and Lactobacillus casei.  Appl. Environ. Microbiol. 72:3130-3146.
  • Broadbent, J. R., B. Rodriguez, P. Joseph, E. A. Smith, and J. L. Steele.  2006.  Conversion of Lactococcus lactis cell envelope proteinase specificity by partial allele exchange.  J. Appl. Microbiol. 100:1307-1317.

Awards and Honors:

  • Lactic Acid Bacteria Industrial Platform International Science Award for Outstanding Excellence in Lactic Acid Bacteria Research with an Industrial Relevance, 2005.
  • Department of Nutrition and Foods Sciences Winder Professor, 1995, 1997, 2004-07.
  • Department of Nutrition and Foods Sciences Researcher of the Year, 2002.
  • American Dairy Science Association DSM Food Specialties Award, 2002.
  • Department of Nutrition and Foods Sciences Teacher of the Year, 1997.
  • Utah State University College of Family Life Researcher of the Year, 1996.