Overview of Research Program

Bacterial adaptations to stressors (environment, plant, sanitizers, packaging) through cellular responses (biofilms, filaments, slow growing states), produce safety, sanitizer development, imaging and vehicles of foodborne pathogen cross contamination such as soil, compost, manures, water, dust, aerosols, particulates and food contact surfaces.

Publications                                                                                                                                                                            

(2018 - present)            Search PubMed

Ruiz-Llacsahuanga B, Sanchez-Tamayo M, Kumar GD, Critzer F. 2024. Comparison of three air sampling methods for the quantification of Salmonella, Shiga-toxigenic Escherichia coli (STEC), coliforms, and generic E. coli from bioaerosols of cattle and poultry farms. J Food Prot. 87(6):100282. doi: 10.1016/j.jfp.2024.100282. Epub 2024 Apr 23.PMID: 38663638

Juneja VK, Osoria M, Altuntas EG, Taneja NK, Thakur S, Kumar GD, Setlow P. 2024. Effects of spore purity on the wet heat resistance of Clostridium perfringens, Bacillus cereus and Bacillus subtilis spores. Food Res Int. 2024 Feb;177:113904. doi: 10.1016/j.foodres.2023.113904. Epub 2023 Dec 22. PMID: 38225145

Dorick J, Kumar GD, Macarisin D, Andrew Widmer J, Stivers T, Dunn LL. 2024. Longitudinal Survey of Aeromonas hydrophila and foodborne pathogens in a commercial aquaponics system. J Food Prot. 87(3):100230. doi: 10.1016/j.jfp.2024.100230. Epub 2024 Jan 24. PMID: 38278488

Dorick JM, Macarisin D, Dunn L, Dev Kumar G. 2023. Effect of aquaponic water and substratum material on biofilm formation by Aeromonas hydrophila. Int J Food Microbiol. 404:110316. doi: 10.1016/j.ijfoodmicro.2023.110316.

Oguadinma I, Mishra A, Dev Kumar G. 2023. Antibiotic resistance associated lactic acid cross tolerance in Shiga-toxin producing E. coli. Front Microbiol. 14:1059144. doi: 10.3389/fmicb.2023.1059144.

Olszewska MA, Dev Kumar G, Hur M, Diez-Gonzalez F. 2023. Inactivation of dried cells and biofilms of Listeria monocytogenes by exposure to blue light at different wavelengths and the influence of surface materials. Appl Environ Microbiol. 89(10):e0114723. doi: 10.1128/aem.01147-23.

Xu X, Rothrock MJ Jr, Dev Kumar G, Mishra A. 2023. Assessing the risk of seasonal effects of Campylobacter contaminated broiler meat prepared in-home in the United States. Foods. 12(13):2559. doi: 10.3390/foods12132559.

Arellano S, Zhu L, Dev Kumar G, Law B, Friedman M, Ravishankar S. 2022. Essential oil microemulsions inactivate antibiotic-resistant bacteria on iceberg lettuce during 28-day storage at 4 °C. Molecules. 27(19):6699. doi: 10.3390/molecules27196699. PMID: 36235235; PMCID: PMC9570928. 

Oguadinma IC, Mishra A, Dev Kumar G. 2022. Sunlight parameters influence the survival and decline of Salmonella and Escherichia coli in water. J Food Prot. 85(11):1614-1624. doi: 10.4315/JFP-22-042. 

Oguadinma IC, Mishra A, Juneja VK, Dev Kumar G. 2022. Antibiotic resistance influences growth rates and cross-tolerance to lactic acid in Escherichia coli O157:H7 H1730. Foodborne Pathog Dis. doi: 10.1089/fpd.2022.0009. Epub ahead of print. PMID: 35856661. 

Ozen E, Kumar GD, Mishra A, Singh RK. 2022. Inactivation of Escherichia coli in apple cider using atmospheric cold plasma. Int J Food Microbiol. 382:109913. doi: 10.1016/j.ijfoodmicro.2022.109913. 

Xu X, Rothrock MJ Jr, Reeves J, Dev Kumar G, Mishra A. 2022. Comparison between LASSO and RT methods for prediction of generic E. coli concentration in pastured poultry farms. Food Res Int.161:111860. doi: 10.1016/j.foodres.2022.111860. Epub 2022 Aug 25. PMID: 36192982. 

Xu X, Rothrock MJ Jr, Reeves J, Kumar GD, Mishra A. 2022. Using E. coli population to predict foodborne pathogens in pastured poultry farms. Food Microbiol. 108:104092. doi: 10.1016/j.fm.2022.104092. Epub 2022 Jul 14. PMID: 36088123. 

Yang B, Dev Kumar G, Mis Solval K. 2022. Evaluation of low-cost smartphone-based infrared cameras to assess the cooling and refrigerated storage temperatures of fresh produce. Foods. 11(21):3440. doi: 10.3390/foods11213440. PMID: 36360053; PMCID: PMC9657662. 

Chiarelli PG, Pegg RB, Dev Kumar G, Solval KM. 2021. Exploring the feasibility of developing novel gelatin powders from salted, dried cannonball jellyfish (Stomolophus meleagris). Food Biosci. 44:101397.

Hayman K, Oguadinma IC, Mishra A., Dev Kumar G. 2021. Evaluation of the use of ampicillin‐and streptomycin‐resistant Shiga toxin‐producing Escherichia coli to reduce the burden of background microbiota during food safety studies. Journal of Food Safety, e12950.

Juneja VK, Osoria M, Altuntas EG, Salazar JK, Kumar GD, Sehgal S, and Baker D. 2021. Inactivation of Listeria monocytogenes, Escherichia coli O157:H7, and Salmonella spp. on dates by antimicrobial washes. J Food Process Preserv. Manuscript e15282. https://doi.org/10.1111/jfpp.15282.

Juneja, V. K., Osoria, M., Purohit, A. S., Golden, C. E., Mishra, A., Taneja, N. K., Salazar JK, Thippareddi H, Dev Kumar G. 2021. Predictive model for growth of Clostridium perfringens during cooling of cooked pork supplemented with sodium chloride and sodium pyrophosphate. Meat Sci, 180, 108557.

Juneja VK, Purohit AS, Golden M, Osoria M, Glass KA, Mishra A, Thippareddi H, Dev Kumar G, Mohr TB, Minocha U and Silverman M. 2021. A predictive growth model for Clostridium botulinum during cooling of cooked uncured ground beef. Food Microbiol. 93: p.103618.

Juneja VK, Xu X, Osoria M, Glass KA, Schill KM, Golden MC, Schaffner DW, Dev Kumar G, Dunn L, Jadeja R, Shrestha S, Mishra, A. 2021. Predictive model for growth of Clostridium botulinum from spores during cooling of cooked ground chicken. Food Res. Intl, 149: 110695.

White E, Dev Kumar G, da Silva ALBR, Kerr WL, Cimowsky S, Widmer JA, Dunn LL. 2021. Postharvest reduction of Salmonella enterica on tomatoes using a pelargonic acid emulsion. Foods. 10(1):178. https://doi.org/10.3390/foods10010178.

Xu X, Rothrock MJ Jr, Mohan A, Dev Kumar G, Mishra A. 2021. Using farm management practices to predict Campylobacter prevalence in pastured poultry farms. Poult Sci. 100:101122. doi: 10.1016/j.psj.2021.101122.

Dev Kumar G., Mis Solval K, Mishra A, Macarisin, D. 2020. Antimicrobial efficacy of pelargonic acid micelles against Salmonella varies by surfactant, serotype and stress response. Sci Rep 10, 10287 (2020). https://doi.org/10.1038/s41598-020-67223-y

Dev Kumar G, Mishra A, Dunn L, Townsend A, Oguadinma IC, Bright KR, Gerba CP. 2020. Biocides and novel antimicrobial agents for the mitigation of coronaviruses. Frontiers Microbiol. https://doi.org/10.3389/fmicb.2020.01351.

Hwang D, Rothrock Jr MJ, Pang H, Kumar GD, Mishra A. 2020. Farm management practices that affect the prevalence of Salmonella in pastured poultry farms. LWT, 109423. https://doi.org/10.1016/j.lwt.2020.109423.

Jiang N, Dev Kumar G, Chen J, Mishra A, Mis Solval K. 2020. Comparison of concurrent and mixed-flow spray drying on viability, growth kinetics and biofilm formation of Lactobacillus rhamnosus GG microencapsulated with fish gelatin and maltodextrin. LWT - Food Sci Tech 124; 109200.

Kumar GD, Patel J, Ravishankar S. 2020. Contamination of spinach at germination: A route to persistence and environmental reintroduction by Salmonella. Int J Food Microbiol. 326:108646. doi: 10.1016/j.ijfoodmicro.2020.108646.

Zhao T, Dev Kumar G.  2019.  Acid based microbicides for the control of foodborne and clinical pathogens. Nov. Res. Sci. 1:1-3.

Dev Kumar G, Macarisin D, Micallef SA. 2019. Salmonella enterica filamentation induced by pelargonic acid is a transient morphotype. Appl Environ Microbiol. 85(2). pii: e02191-18. doi: 10.1128/AEM.02191-18. 

Dev Kumar G , Ravishankar S. 2019. Ozonized water with plant antimicrobials: an effective method to inactivate Salmonella enterica on iceberg lettuce in the produce wash water. Environ. Res. 171:213-217.

Dev Kumar G, Williams RC,  Sriranganathan N, Boyer RR, Eifert JD. 2018.  Survival of tomato outbreak associated Salmonella serotypes in soil and water and the role of biofilms in abiotic surface attachment. Foodborne Path. Dis. 15: 548-553.