Faculty Directory

Steven C. Ricke

Steven C. Ricke

Professor, Donald 'Buddy' Wray Chair in Food Safety

(DREX)-Director Experiment Station

(FDSC)-Food Science

Phone: 479-575-4605

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The mission of Dr. Ricke’s research program is to understand mechanisms of foodborne bacterial pathogen (Salmonella, Listeria, and Campylobacter) contamination at all phases of food production and develop a more integrated control effort. The overall emphasis is on understanding foodborne pathogen growth, survival and pathogenesis. Dr. Ricke’s research team is currently focusing on Salmonella physiology when grown under gastrointestinal and food processing conditions using a variety of molecular and genomic techniques to determine how metabolic responses overlap with virulence expression when Salmonella spp. become pathogenic. Specific issues being pursued include whether intervention treatments predispose Salmonella to be more resistant to particular antimicrobials and how these conditions might influence sustained pathogenesis. This research has implications not only for understanding persistence of Salmonella during food production but addresses practical issues regarding the choices of antimicrobials as intervention steps.

Research Program Goals

  1. Elucidate Salmonella virulence and growth response mechanisms during infection and disease.
  2. Develop a better understanding of Salmonella stress and survival abilities during food processing.
  3. Design and optimize detection technologies that allow more rapid quantitative detection of Salmonella and other foodborne pathogens.
  4. Discover novel interventions that limit Salmonella and other foodborne pathogens during all phases of food production.

Ph.D.- University of Wisconsin (Animal Science and Bacteriology)

M.S.- University of Illinois Urbana-Champaign (Ruminant Nutrition) 

B.S.- University of Illinois Urbana-Champaign (Agriculture)

Foley, S., R. Nayak, I.B. Hanning, T.L. Johnson, J. Han, and S.C. Ricke. 2011. Population dynamics of Salmonella enterica serotypes in commercial egg and poultry production. Appl. Environ. Microbiol. 77: 4273-4279.

Milillo, S.R., E. Martin, A. Muthaiyan and S.C. Ricke. 2011. Immediate reduction of Salmonella enterica serotype Typhimurium following exposure to multiple-hurdle treatments with heated, acidified organic acid salt solutions. Appl. Environ. Microbiol. 77: 3765-3772.

Park, S.H., R. Jarquin, I. Hanning, G. Almeida, and S.C. Ricke. 2011.  Detection of Salmonella spp. survival and virulence in poultry feed by targeting the hilA gene. J. Appl. Microbiol. 111: 426-432.

Sirsat, S.A., A. Muthaiyan and S.C. Ricke. 2011. Optimization of RNA extraction method for transcriptome studies of Salmonella inoculated on commercial raw chicken breast samples. BMC Research Notes 4:60:1-7.

Callaway, T.R. and S.C. Ricke (Eds.), 2012. Direct Fed Microbials/Prebiotics for Animals: Science and Mechanisms of Action, Springer Science, New York, NY, 206 pp.

Hernández-Hernández, O., A. Muthaiyan, F. J. Moreno, A. Montilla, M. L. Sanz, and S.C. Ricke. 2012. Effect of prebiotic carbohydrates on the growth and tolerance of Lactobacillus. Food Microbiol. 30: 355-361.

Khatiwara, A., T. Jiang, S.-S. Sung, T. Dawoud, J.N. Kim, D. Bhattacharya, H.-B. Kim, S. C. Ricke, and Y.M. Kwon.  2012. Genome scanning for conditionally essential genes in Salmonella. Appl. Environ. Microbiol. 78: 3098-3107.

Muthaiyan, A., O. Hernandez-Hernandez, F. J. Moreno, M. L. Sanz, and S.C.Ricke. 2012. Effect of hydrolyzed casein macropeptide conjugated galactooligosaccharides on the growth and bile resistance of Lactobacillus strains. J. Agric. and Food Chemistry 60: 6839−6845.

Ricke, S.C., E.J. Van Loo, M.G. Johnson and C.A. O’Bryan (Eds.), 2012. Organic Meat Production and Processing. Wiley Scientific/IFT, New York, NY 444 pp.

Van Loo, E.J., W. Alali, and S.C. Ricke.  2012. Food safety and organic meats. Annual Rev. of Food Science and Technol. 3: 205-225.

Alali, W.Q., C. L. Hofacre, G. F. Mathis, G. Faltys, S. C. Ricke, and M. P. Doyle. 2013. Effect of non-pharmaceutical compounds on shedding and colonization of Salmonella enterica serovar Heidelberg in broilers. Food Control 31: 125-128.

Foley, S.L., T.J. Johnson, S.C. Ricke, R. Nayak and J. Danzeisen. 2013. Salmonella pathogenicity and host adaptation in chicken-associated serovars.  Microbiol. Mol. Biol. Revs. 77: 582-607.

Park, S.H., D. Biswas, J. Lingbeck, O. K. Koo and S.C. Ricke. 2013. Enhancement of macrophage chicken cytokine response to Salmonella Typhimurium when combined with bacteriophage P22. FEMS Microbiol. Letts. 339: 137–144.

Park, S.H., I. Hanning, A. Perrota, B. J. Bench, E. Alm, and S. C. Ricke. 2013. Modifying the gastrointestinal ecology in alternatively raised poultry and the potential for molecular and metabolomic assessment. Poultry Sci. 92: 546–561.

Pendleton, S., I. Hanning, D. Biswas, and, S.C. Ricke. 2013. Evaluation of whole genome sequencing as a genotyping tool for Campylobacter jejuni in comparison with pulsed-field gel electrophoresis and flaA typing. Poultry Sci. 92 :573–580.

Ricke, S.C. , C.S. Dunkley, and J.A. Durant. 2013. A review on development of novel strategies for controlling Salmonella Enteritidis colonization in laying hens: Fiber – based molt diets. Poultry Sci. 92: 502–525.

Ricke, S.C. , A. Khatiwara, and Y.M. Kwon. 2013. Application of microarray analysis of foodborne Salmonella in poultry production: A review. Poultry Sci. 92: 2243–2250.

Dawoud, T., T. Jiang, S.C. Ricke, and Y.M. Kwon. 2014. Improving the efficiency of transposon mutagenesis in Salmonella Enteritidis by overcoming host-restriction barriers. Molecular Biotechnol. 56: 1004–1010.

Beers, K., J. Ferguson, S. H. Park, P. Cook, C.A. Baker , M. Miller, D. Caldwell, S. Ramsaroop, and S. C. Ricke. 2015. Comparison of the RAPID-B® flow cytometer and the BAX® system for the detection of non-O157 shiga toxin-producing Escherichia coli (STEC) in beef products. Food Control 50: 72-75.

Park, S.H., M. Aydin, A. Khatiwara, M.C. Dolan, D.F. Gilmore, J.L. Bouldin, S. Ahn, and S.C. Ricke. 2014. Current and emerging technologies for rapid detection and characterization of Salmonella in poultry and poultry products. Food Microbiol. 38: 250-262.

Saengkerdsub, S. and S.C. Ricke.  2014. Ecology and characteristics of methanogenic archaea in animals and humans. Crit. Revs. Microbiol. 40: 97–116.

Park, S.H. and S.C. Ricke. 2015. Development of multiplex and quantitative PCR assays for simultaneous detection of Salmonella genus, Salmonella subspecies I, S. Enteritidis, S. Heidelberg, and S. Typhimurium.  J. Appl. Microbiol. 118, 152-160.

Ricke, S.C. 2015. Potential of fructooligosaccharide prebiotics in alternative and nonconventional poultry production systems. Poultry Sci. 94:1411–1418.

Ricke, S.C., J.R. Donaldson, and C.A. Phillips (Eds.) 2015. Food Safety: Emerging Issues, Technologies and Systems. Academic Press, Elsevier, Inc., Oxford, UK, 449 pp.

Roto, S.M., P. M. Rubinelli, and S.C. Ricke. 2015. An introduction to the avian gut microbiota and the effects of yeast-based prebiotic compounds as potential feed additives. Front. Vet. Sci. 2 (Article 28): 1-18. doi: 10.3389/fvets.2015.00028.

Baker, C.A., S.H. Park, S.A. Kim, P.M. Rubinelli, S.M. Roto, S.I. Lee, S.Ramsaroop, M. Miller, and S.C. Ricke. 2016. Formalin-fixed cells as an internal standard approach for the detection and quantitative assessment of shiga toxin-producing Escherichia coli (STEC). Food Control 63:76-82.

Baker, C.A., P.M. Rubinelli, S. H. Park, F.Carbonero, and S.C. Ricke. 2016. Shiga toxin-producing Escherichia coli in food: Incidence, ecology, and detection strategies in the United States. Food Control 59: 407-419.

Kwon, Y.M., S.C. Ricke, and R.K. Mandal. 2016. Transposon sequencing: Methods and expanding applications. Appl. Micro. Biotechnol. 100: 31–43.

Sanad, Y.M., K. Johnson, S.-H. Park, B. Shaheen, J. Han, S.L. Foley, P.B. Kenney, P.B., S. Ricke, and R. Nayak. 2016. Molecular characterization of Salmonella enterica serovars isolated from a turkey production facility in the absences of selective antimicrobial pressure. Foodborne Pathogens and Disease 13: 80-87.

2005- present  
Donald “Buddy” Wray Chair in Food Safety and Director of the Center for Food Safety, University of Arkansas

Professor, Department of Poultry Science, Texas A&M University

Associate Professor, Department of Poultry Science, Texas A&M University

Assistant Professor, Department of Poultry Science, Texas A&M University

Research Associate, North Carolina State University

2011- present
Editor-in-Chief, Agriculture, Food and Analytical Bacteriology (AFAB)

American Society for Microbiology Distinguished Lecturer

Arkansas Association for Food Protection Fellow Award

2013- 2015  
Editoral Board, Journal of Probiotics & Health

International Scholar, Kyung Hee University, Suwon, South Korea

John White Outstanding Research Award, University of Arkansas Division of Agriculture

University of Arkansas Outstanding Research Award, Department of Food Science

American Egg Board Research Award, Poultry Science Association