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Francisco Diez-Gonzalez

Director and Professor
  • Center for Food Safety

Overview of Research Program

Safety of low water activity foods

Safety of fresh fruits and vegetables

Pre-harvest ecology and control of foodborne pathogens

Safety of organic foods

Safety of dairy foods

Stress responses of foodborne pathogens

Education of food service Hispanic workers

Publications                                                                                                                                                                            

(2010 - present)            Search PubMed                                                                                                                                                                                                            

Tong, C., M. Scherman, F. Diez-Gonzalez, and J. D. Rossbach. 2017. Food safety risks of leafy greens from small-acreage farms in Minnesota. J. Ext. 55: 4RIB4

Rossbach, J. D., R. C. Fink, M. J. Sadowsky, C. Tong, and F. Diez-Gonzalez, 2017. Factors Influencing the Salmonella Internalization into Seedpods and Whole Plants of Arachis hypogaea (L.). Food Microbiol. 66: 184–189.

Fink, R. C., J. M. Popowski, J. E. Anderson, J. L. Tran, S. Kalyanikutty, G. I. Crawford, A. DiCostanzo, R. B. Cox and F. Diez-Gonzalez. 2017. Impact of distillers grain solids (DGS) and seasonality on the prevalence of Escherichia coli O157 at an abattoir in the U. S. Upper Midwest. J. Appl. Anim. Res. http://dx.doi.org/10.1080/09712119.2017.1288628

Lourenço, A., M. B. Kamnetz, C. Gadotti, F. Diez-Gonzalez. 2017. Antimicrobial treatments to control Listeria monocytogenes in queso fresco. Food Microbiol. 64: 47-55. DOI: 10.1016/j.fm.2016.12.014

Akhtar, M., S. Viazis, K. Christensen, P. Kraemer, F. Diez-Gonzalez. 2017. Isolation, characterization and evaluation of virulent bacteriophages against Listeria monocytogenes Food Control. 75: 108-115. DOI: 10.1016/j.foodcont.2016.12.035

Akhtar, M., A. Maserati, F. Diez-Gonzalez. 2016. Does antibiotic resistance influence shiga-toxigenic Escherichia coli O26 and O103 survival to stress environments?  Food Control 8:330-336.

Viazis S., T. P. Labuza, and F. Diez-Gonzalez. 2015. Bacteriophage mixture inactivation kinetics against Escherichia coli O157:H7 on hard surfaces.  J. Food Safety 35: 66-74.

Hamilton K. E., J. Umber, A. Hultberg, C. Tong, M. Schermann, F. Diez-Gonzalez, and J.B. Bender. 2015. Validation of good agricultural practices (GAP) on Minnesota vegetable farms.  Foodborne Pathog. Dis. 12:145-50.

Cherry C., A. H. Mohr, T. Lindsay, F. Diez-Gonzalez, W. Hueston, and F. Sampedro. 2014. Knowledge and perceived implementation of food safety risk analysis framework in Latin America and the Caribbean region.  J Food Prot. 77:2098-105.

Martinez-Vaz, B., R. C. Fink, F. Diez-Gonzalez, and M. J. Sadowsky. 2014. Enteric pathogen-plant interactions: Molecular connections leading to colonization and growth and implications for food safety.  Microbes and Environments 29: 123-135.

Gadotti, C., L. Nelson, and F. Diez-Gonzalez 2014. Inhibitory effect of combinations of caprylic acid and nisin on Listeria monocytogenes in queso fresco.  Food Microbiol. 39:1-6.

Akhtar, M., S. Viazis, and F. Diez-Gonzalez. 2014. Isolation, identification and characterization of lytic, wide host range bacteriophages from waste effluents against Salmonella enterica serovars.  Food Cont. 38:67-74.

Lumor, S. E., B. D. Deen, I. Ronningen, K. Smith, N. R. Fredrickson, F. Diez-Gonzalez, T. P. Labuza. 2013. Assessment of the inhibition of ricin toxicity by lactose in milk.  J. Food Prot. 76:2037-39.

Cho, S., F. Diez-Gonzalez, C. P. Fossler, S. J. Wells, C. W. Hedberg, J. B. Kaneene, P. L. Ruegg, L. D. Warnick, and J. B. Bender. 2013. Herd-level risk factors associated with fecal shedding of Shiga toxin-encoding bacteria on dairy farms in Minnesota, USA.  Can. Vet. J. 54:693-697.

Pimentel-Filho, N. J., H. C. Mantovani, F. Diez-Gonzalez, and M. C. Dantas. 2013. Inhibition of Listeria and Staphylococcus aureus by bovicin HC5 and nisin combination in milk.  J. Agric. Sci. 8:188:196.

Hystead, E., F. Diez-Gonzalez, and T. C. Schoenfuss. 2013. The effect of sodium reduction with and without potassium chloride on the survival of Listeria monocytogenes in Cheddar cheese.  J. Dairy Sci. 96:6172-6185.

Hou, Z., R. C. Fink, M. Sugawara, F. Diez-Gonzalez, and M. J. Sadowsky. 2013. Transcriptional and functional responses of Escherichia coli O157:H7 growing in the lettuce rhizoplane.  Food Microbiol. 35:136-142.

Yang, H., J. Feirtag, and F. Diez-Gonzalez. 2013. Sanitizing effectiveness of commercial “active water” technologies on Escherichia coli O157:H7, Salmonella enterica and Listeria monocytogenes.  Food Cont. 33:232-238.

Fink R.C., J. M. Popowski J. E. Anderson, J. L. Dahlberg, S. Kalyanikutty, G. I. Crawford, A. Dicostanzo, R. B. Cox, and F. Diez-Gonzalez. 2013. Impact of management practices and distillers' grains feeding on the prevalence of Escherichia coli O157 in feedlot cattle in Minnesota.  Foodborne Pathog Dis. 10:559-65.

Compart, D. M, A. M. Carlson, G. I. Crawford, R. C. Fink, F. Diez-Gonzalez, A. Dicostanzo, and G. C. Shurson. 2013. Presence and biological activity of antibiotics used in fuel ethanol and corn co-product production.  J Anim. Sci. 91:2395-2404.

Hou, Z, R. C. Fink, C. Radtke, M. J. Sadowsky, and F. Diez-Gonzalez. 2013. Incidence of naturally internalized bacteria in lettuce leaves.  Int. J. Food Microbiol. 162:260-265.

He, L, D. B. Deen, A. H. Pagel, F. Diez-Gonzalez, and T. P.Labuza. 2013. Concentration, detection and discrimination of Bacillus anthracis spores in orange juice using aptamer based surface enhanced Raman spectroscopy.  Analyst. 138:1657-1659.

Hou, Z., R. C. Fink, E. P. Black, M. Sugawara, Z. Zhang, F. Diez-Gonzalez, and M. J. Sadowsky. 2012. Gene expression profiling of Escherichia coli in response to interactions with the lettuce rhizosphere.  J. Appl. Microbiol. 113:1076-1086.

Lumor, S. E., B. D. Deen, I. Ronningen, K. Smith, N. R. Fredrickson, F. Diez-Gonzalez, and T. P. Labuza. 2012. Detection and inactivation of saxitoxin in skim milk.  J. Food Prot. 75:1113-1116.

Lumor, S. E., N. R. Fredrickson, I. Ronningen, B. D. Deen, K. Smith, F. Diez-Gonzalez, and T. P. Labuza. 2012. Comparison of the presence of Shiga toxin 1 in food matrices as determined by an enzyme-linked immunosorbent assay and a biological activity assay.  J. Food Prot. 75:1036-1042.

Fink, R. C., E. Black, Z. Hou, M. Sugawara, M. J. Sadowsky, and F. Diez-Gonzalez. 2012. Transcriptional responses of Escherichia coli K12 and O157:H7 in association with lettuce leaves.  Appl. Environ. Microbiol. 78:1752-1764.

He, L., B. Deen, T. Rodda, I. Ronningen, T. Blasious, C. L. Haynes, F. Diez-Gonzalez, and T. P. Labuza. 2011. Detection of ricin in milk combined immunomagnetic separation with surface-enhanced Raman spectroscopy.  J. Food Sci. 76:N49-53.

He, L., E. Lamont. B. Veeregoda, S. Sreevatsan, C. L. Haynes, F. Diez-Gonzalez, and T. P. Labuza. 2011. Aptamer-based surface-enhanced Raman scattering detection of ricin in liquid foods.  Chem. Sci. 2:1579–1582.

He, L., C. L. Haynes, F. Diez-Gonzalez, and T. P. Labuza. 2011. Rapid detection of a foreign protein in milk using IMS–SERS.  J. Raman. Spec. 42:1428-1434.

Viazis, S., and F. Diez-Gonzalez. 2011. Enterohemorrhagic Escherichia coli: The 20th century’s emerging foodborne pathogen. A Review.  Adv. Agron. 111:1-50.

Viazis, S., M. Akhtar, A. Brabban, J. Feirtag, and F. Diez-Gonzalez. 2011. Isolation and host range characterization of lytic bacteriophages against enterohemorrhagic Escherichia coli.  J. Appl. Microbiol. 110:1323-1331.

He, L., T. Rodda, C. Haynes, T. Deschaines, T. Strother, F. Diez-Gonzalez, and T. P. Labuza. 2011. Detection of a foreign protein in milk using surface-enhanced Raman spectroscopy coupled with antibody-modified silver dendrites.  Anal. Chem. 83:1510–1513.

Lumor, S. E., A. Hutt, I. Ronnigen, F. Diez-Gonzalez, and T. P. Labuza. 2011. Validation of immunodetection (ELISA) of ricin using a biological activity assay.  J. Food Sci. 76:C112-C116.

Lumor, S. E., F. Diez-Gonzalez, and T. P. Labuza. 2011. Detection of warfare agents in liquid foods using brine shrimp lethality assay.  J. Food Sci. 76:T16-T19.

Viazis, S., M. Akhtar, J. Feirtag, and F. Diez-Gonzalez. 2011. Reduction of Escherichia coli O157:H7 viability on hard surfaces by treatment with a bacteriophage mixture.  Int. J. Food Microbiol. 145:37-42.

Viazis, S., M. Akhtar, J. Feirtag, and F. Diez-Gonzalez. 2011. Reduction of Escherichia coli O157:H7 viability on leafy green vegetables by treatment with a bacteriophage mixture and trans-cinnamaldehyde.  Food Microbiol. 28:149-157.

Leishman, O., M. Johnson, T. P. Labuza, and F. Diez-Gonzalez. 2010. Survival of Bacillus anthracis spores in fruit juices and wine.  J. Food Prot. 73:1694–1697.

Leishman, O., T. P. Labuza, and F. Diez-Gonzalez. 2010. Hydrophobic properties and extraction of Bacillus anthracis spores from liquid foods.  Food Microbiol. 27:661-666.