FVSUag Directory


Ajit K. Mahapatra, PhD

Associate Professor

(478) 825-6809

(478) 825-6376


Academic Program:

Research Area: Food Safety

Research Interests:

Our research focus has been about application of engineering principles in the development and evaluation of food processing and preservation methods for improving food safety.

Recent projects include:

  1. Inactivation of E. coli using nonthermal processing methods (pulsed ultraviolet light, sonication, essential oils, electrolyzed oxidizing water, ozonated water, copper, organic acids, and low-voltage electric current) on meat and their effect on meat quality characteristics.
  2. Modeling the inactivation of E. coli by nonthermal processing methods on meat.
  3. Physical, mechanical, electrical, and thermal properties of food, feed, and biomaterials.
  4. Sorption equilibrium moisture characteristics of food, feed, and biomaterials.

Specialized Equipment (Food Engineering Laboratory)

Pulsed ultraviolet-light generator, ultrasonic processor, texture analyzer, colorimeter, automated spiral plater, automated colony counter, vapor sorption analyzer, water activity meter, powder flow tester, thermal properties analyzer, rheometer, fluid bed dryer, and gas pycnometer.


Doctor of Philosophy: Hungarian Academy of Sciences, Budapest, Hungary (1991)

Master of Science: Indian Institute of Technology (IIT), India (1983)

Bachelor of Science: Orissa University of Agriculture and Technology, India (1981)

Recent Publications/Presentations:

Mahapatra, A. K. and Y. Lan. 2020. Structure, Composition, and Harvesting of Grains and Pulses (Chapter 6) and Postharvest Handling of Grains and Pulses (Chapter 7). In: Handbook of Food Preservation, 61-102. 3rd Ed. M. Shafiur Rahman (ed.). Boca Raton, FL.: CRC Press (Taylor & Francis Group).

Bryant, M. T., H. L. Degala, A. K. Mahapatra, R. M. Gosukonda, and G. Kannan. 2020. Inactivation of Escherichia coli K12 by pulsed UV-light on goat meat and beef: Microbial responses and modeling. International Journal of Food Science and Technology. doi:10.1111/ijfs.14733.

Degala, H. L., J. R. Scott, F. I. Rico Espinoza, A. K. Mahapatra, and G. Kannan. 2020. Synergistic effect of ozonated and electrolyzed water on the inactivation kinetics of Escherichia coli on goat meat. Journal of Food Safety 40 (1): 1-7.    

Kannan, G., R. M. Gosukonda, and A. K. Mahapatra. 2020. Prediction of stress responses in goats: Comparison of artificial neural network and multiple regression models. Canadian Journal of Animal Science 100 (1): 102–110.

Panda, S. S., T. H. Terrill, A. K. Mahapatra, B. Kelly, E. R. Morgan, and J. A. van Wyk. 2020. Site-specific forage management of Sericea Lespedeza: Geospatial technology-based forage quality and yield enhancement model development. Agriculture 2020, 10, 419: 1-17.

Mahapatra, A. K., D. E. Ekefre, H. L. Degala, S. M. Punnuri, and T. H. Terrill. 2019. Moisture-dependent physical and thermal properties of sericea lespedeza seeds. Applied Engineering in Agriculture 35(3): 389-397.

Singh, A., V. Owen, G. Dykes, H. Naumann, A. K. Mahapatra, and T. H. Terrill. 2019. Effect of ensiling on nutritional properties of Sericea Lespedeza alone or in mixtures with alfalfa. Journal of Agricultural Science and Technology A 9: 310-322.

Degala, H. L., A. K. Mahapatra, A. Demirci, and G. Kannan. 2018. Evaluation of non-thermal hurdle technology for ultraviolet light to inactivate Escherichia coli K12 on goat meat surfaces. Food Control 90: 113-120.

Arya, R., M. Bryant, H. L. Degala, A. K. Mahapatra, and G. Kannan. 2018. Effectiveness of a low-cost household electrolyzed water generator in reducing the populations of Escherichia coli K12 on inoculated beef, chevon, and pork surfaces.  Journal of Food Processing and Preservation, e13636.

Mahapatra, A. K., A. J. Kapsoiyo, S. C. Birmingham, D. E. Ekefre, and B. K. Biswas. 2018. Flow and thermal properties of stevia powder. Acta Technologica Agriculturae 21 (2): 51-55.   

Ekefre, D. E., A. K. Mahapatra, M. Latimore, Jr., D. D. Bellmer, U. Jena, G. J. Whitehead, and A. L. Williams. 2018. Evaluation of three cultivars of sweet sorghum as feedstocks for ethanol production in the Southeast United States. Heliyon 3 (12) e00490: 1-18.

Davis, B. I., A. Siddique, A. K. Mahapatra, and Y. W. Park. 2018. Survivability of Escherichia coli in commercial powder goat milk during four months storage at two different temperatures. Advances in Dairy Research 6 (1): 200.

Stewart, W. M., B. N. Vaidya, A. K. Mahapatra, T. H. Terrill, and N. Joshee. 2018. Potential use of multipurpose Paulownia elongata tree as an animal feed resource. American Journal of Plant Sciences 9: 1212-1227.

Mahapatra, A. K., D. E. Ekefre, N. K. Pattanaik, U. Jena, A. L. Williams, M. Latimore, Jr. 2017. Thermal properties of sweet sorghum bagasse as a function of moisture content. Agricultural Engineering International: CIGR Journal 19 (4): 108-113.

Gosukonda, R. M., A. K. Mahapatra, D. E. Ekefre, and M. Latimore, Jr. 2017. Prediction of thermal properties of sweet sorghum bagasse as a function of moisture content using artificial neural networks and regression models. Acta Technologica Agriculturae 2: 29-35.

Degala, H. L., J. R. Scott, P. Nakkiran, A. K. Mahapatra, and G. Kannan. 2016. Inactivation of E. coli O157:H7 on goat meat surface using ozonated water alone and in combination with electrolyzed oxidizing water. American Society of Agricultural and Biological Engineers (ASABE) Paper No. 2462209. St. Joseph, Mich.: ASABE.

Liu, X., M. Nelson, A. K. Mahapatra, and E. Styles. 2015. Perceptions of information gaps in farm-to-table studies. Food Control 50: 663-669.

Gosukonda, R. M., A. K. Mahapatra, X. Liu, and G. Kannan. 2014. Application of artificial neural network to predict Escherichia coli O157:H7 inactivation on beef surfaces. Food Control 47: 606-614.

Tisserat, B., N. Joshee, A. K. Mahapatra, G. W. Selling, and V. L. Finkenstadt. 2013. Physical and mechanical properties of extruded poly(lactic acid)-based Paulownia elongata biocomposites. Industrial Crops and Products 44: 88-96.

Mahapatra, A. K., S. L. Melton, and E. M. Isang. 2013. Effect of moisture content on thermal properties of cowpea flours. Agricultural Engineering International: the CIGR Journal 15 (2): 251-255.

Mahapatra, A. K., D. L. Harris, C. N. Nguyen, and G. Kannan. 2011. Reduction of Escherichia coli O157:H7 on beef surfaces using low-voltage direct electric current and the impact on sensory properties. Journal of Electrostatics 69 (1): 30-35.

Harris, D. L., A. K. Mahapatra, B. L. Jones, and G. Kannan. 2011. Efficacy of low-voltage ac for inactivating surface adherence Escherichia coli O157:H7 on beef. International Journal of Food Safety, Nutrition, and Public Health 4 (2/3/4): 214-224.

Mahapatra, A. K., Y. Lan, and D. L. Harris. 2011. Influence of moisture content and temperature on thermal conductivity and thermal diffusivity of rice flours. International Journal of Food Properties 14 (3): 675-683.

Mahapatra, A. K., M. Latimore, D. D. Bellmer, and B. P. Singh. 2011. Utilization of sweet sorghum for ethanol production- A review. ASABE Paper No. 1111567. St. Joseph, Mich.: ASABE.