Dr. Prakash Kumar Nayak
Dr. Prakash Kumar Nayak Assistant Professor Department of Food Engineering and Technology (Training & Placement Officer (Institute); Member (DPhPC))

Post-Harvest Engineering Operations of high value agricultural products

Thermal and non-thermal processing of foods

Thermal Energy storage (Solar energy application in food Processing)

Design and development of hand operated small tool/machine for underutilized fruits and vegetables


CONTACT: Phone: 7008017286 Email: pk.nayak@cit.ac.in

Google Scholar ID: https://scholar.google.co.in/citations?hl=en&user=W_h4vPgAAAAJ&view_op=list_works&sortby=pubdate

Web of Science Researcher ID: C-3471-2018

ORCID ID: https://orcid.org/0000-0001-5811-6629

Scopus Author ID: 57189695287

Vidwan ID- 173038




Springer-Nature Emerging Researcher Award-2019


On-going Sponsored Project

1.      Nutritional Evaluation and shelf life study of value added products prepared from Ou-tenga : An Underutilized fruits of NER from DST, Govt. of India.

2.      Isolation and Identification of novel bacteriosin producing probiotc bactrria From NER India and its application in Food Preservation from DBT, Govt. of India.

3.      Development of low cost phase change material assited hybrid solar dryer for wide range of agricultural products from NECBH, DBT, Govt. of India.


 Publications (Last five years)



1.     Kondareddy, R., Sivakumaran, N., Radha Krishnan, K., Nayak, P.K., Saikia D. and Singha, S., 2021.Performance evaluation of modified forced convection solar dryer with energy storage unit for drying of Elephant apple (Dillenia Indica). Journal of Food Process Engineering: Accepted.

2.     Lakshmi, D.V.N., Muthukumar, P. and Nayak, P.K., 2021. Experimental investigations on active solar dryers integrated with thermal storage for drying of black pepper. Renewable Energy167, pp.728-739.

3.     Mishra, S., Rayaguru, K., & Nayak, P. K. 2021, Ultrasound Pre-treated Osmotic Dehydration of Elephant Apple (Dillenia indica) Slices. Journal of Scientific and Industrial Research (JSIR), 80(01), 17-22.

4.     Kondareddy, R., Sivakumaran, N., Radha Krishnan, K., Nayak, P.K., Sahu, F.M. and Singha, S., 2021. Performance evaluation and economic analysis of modified solar dryer with thermal energy storage for drying of blood fruit (Haematocarpus validus). Journal of Food Processing and Preservation, 45(9), p.e15653.

5.     Priyadarshini, A., Rayaguru, K., Nayak, P K and LENKA, C., 2021. Efficiency of Ohmic heating for Microbial inactivation in Mango (Mangifera indica L.) pulp. International Journal of Pharmaceutical Research, 13(1).


1.  Basumatary, B., Nayak, P. K., Chandrasekar, C.M., Nath, A., Nayak, M., and Kesavan, R.K., 2020. Impact of thermo-sonication and pasteurization on the physicochemical, microbiological, and anti-oxidant properties of pomelo (Citrus maxima) juice. International Journal of Fruit Science, pp.1-18.

2.     Radha Krishnan K. and Kalpana Rayaguru, Nayak, Prakash Kumar, 2020, Effect of ultra-sonicated vacuum drying on antioxidant activity, TPC, TFC and color of elephant apple slices, Food Biosciences, p.100629.

3.     Priyadarshini, A., Rayaguru, K. and Nayak, P.K., 2020. Influence of Ohmic Heating On Fruits And Vegetables: A Review. Journal of Critical Reviews, 7(19), pp.1952-1959.

4.     Nayak, P.K., Basumatary, B., Chandrasekar, C.M., Seth, D., and Kesavan, R.K., 2020. Impact of thermo-sonication and pasteurization on total phenolic contents, total flavonoid contents, antioxidant activity, and vitamin C levels of elephant apple (Dillenia indica) juice. Journal of Food Process Engineering, p.e13447.

5.     Nayak, P.K., Chandrasekar, C.M., Sundarsingh, A., and Kesavan, R.K., 2020. Effect of in-vitro digestion on the bioactive compounds and biological activities of fruit pomaces. Journal of Food Science and Technology, 57 (12), 4707-4715.

6.     Ayoub, A., Singh, J., Bhat, A., Nayak, P.K., and Chhetri, P., 2020. Effect of several packaging materials on the storage stability of dried persimmon (Diospyros kaki L) fruit slices. Plant Cell Biotechnology and Molecular Biology, pp.70-80.

7.     Kondareddy, R., Sivakumaran, N., Radhakrishnan, K., and Nayak, P.K., 2020. Performance analysis of solar tunnel dryer with thermal storage and Photovoltaic system for drying star fruit. E&ES (IOP Publishing Ltd), 463(1), p.012138.

8.     Kumar, D.R., Nayak P K. and Uma, D., 2020. Quantification of ω-fatty acids through GC-MS analysis in flaxseed (Linum Usitatisium L.). International Journal of Chemical Studies, 8(3), pp.1767-1771.


1.     Nayak, P.K., Krishnan Kesavan, R., Baishya, H., and Behera, G., 2019. Design, Development, and Performance Evaluation of an Aloe Vera Gel Extractor. Research into Design for a Connected World (pp. 529-538). Springer, Singapore.

2.     Lakshmi, D.V.N., Muthukumar, P., Layek, A., and Nayak, P.K., 2019. Performance analyses of mixed-mode forced convection solar dryer for drying of stevia leaves. Solar Energy, 188, pp.507-518.

3.   Lakshmi, D.V., Muthukumar, P., Ekka, J.P., Nayak, P.K., and Layek, A., 2019. Performance comparison of mixed-mode and indirect mode parallel flow forced convection solar driers for drying Curcuma zedoariaJournal of Food Process Engineering, 42(4), p.e13045.

4.   Kondareddy, R., Sivakumaran, N., and Nayak, P.K, 2019. Drying kinetics of black turmeric (Curcuma caesia) with optimal controller assisted low-cost solar dryer, Food Research, 12, 1223-31.

5.   Behera, G., Rayaguru, K. and Nayak, P.K., 2019, September. Effect of Ultrasound-Assisted Pre-treatment on Osmo-Dehydration Kinetics and Quality of Star Fruit (Averrhoa Carambola L) Slices: An Optimization Study. In International Conference on Innovation in Modern Science and Technology (pp. 1019-1027). Springer, Cham.

6.     Kesavan, R.K., Nayak, P.K. and Mili, P., 2019, September. Quality assessment of Kaji Lemon (Citrus limon) juice under ultrasound and pasteurization processing conditions. In International Conference on Innovation in Modern Science and Technology (pp. 16-23). Springer, Cham.

7.  Nayak, P.K., Mohan, C.C. and Radhakrishnnan, K., 2019. Functional Foods from Different Sources. In Food Bio-actives (pp. 37-59)1st Edition, Apple Academic Press.

8.   Nayak P.K., Mohan, C.C. and Radhakrishnnan, K., 2019. Food Bio actives, Functionality and Applications in Human Health: Functional Foods from Different Sources (Chapter 2). 1st Edition, Apple Academic Press


1.     Nayak, P.K., Mohan, C.C., and Radhakrishnan, K., 2018. Effect of microwave pretreatment on the color degradation kinetics in mustard greens (Brassica juncea). Chemical Engineering Communications, 205(9), pp.1261-1273.

2.     Nayak, P.K., Dash, U., Rayaguru, K., and Radha Krishnan, K., 2018. Influence of elephant apple powder as an adsorbent in the regeneration of fried soybean oil: Process optimization studies. Journal of Food Process Engineering, 41(1), p.e12637.

3.     Nayak, P.K., Chandrasekar, C.M., and Kesavan, R.K., 2018. Effect of thermo-sonication on the quality attributes of star fruit juice. Journal of food process engineering, 41(7), p.e12857.

4.     Lakshmi, D.V.N., Muthukumar, P., Layek, A., and Nayak, P.K., 2018. Drying kinetics and quality analysis of black turmeric (Curcuma caesia) drying in a mixed-mode forced convection solar dryer integrated with thermal energy storage. Renewable energy, 120, pp.23-34.


1.    Nayak, P.K., Rayaguru, K., and Radha Krishnan, K., 2017. Quality comparison of elephant apple juices after highpressure processing and thermal treatment. Journal of the Science of Food and Agriculture, 97(5), pp.1404-1411.

2.  Nayak, P.K., Dash, U., Radha Krishnan, K., Mishra, B.K. and Rayaguru, K., 2017. Process Optimization for Minimizing Residual Free Fatty Acid Levels in Fried Mustard Oil: Isotherm and Kinetics Studies. Journal of food process engineering, 40(3), p.e12426.

3.   Nayak, P.K., and Rayaguru, K., 2017. Design, development, and performance evaluation of the elephant apple core cutter. Journal of food science and technology, 54(12), pp.4060-4066.

4.   Kumar, S., Mahanand, S.S. and Nayak, P.K, 2017. Mathematical modelling and experimental analysis of broccoli (Brassica oleracea I.) In tray dryer. Journal of Pharmacognosy and Phytochemistry, 6(6), pp.1049-1052.

5.     Behera, G., Rayaguru, K., and Nayak, P.K., 2017. Effect of microwave blanching on slice thickness and quality analysis of star fruit. Current Research in Nutrition and Food Science Journal, 5(3), pp.274-281.


1.     Nayak, P.K., Mahananda SS & Rayaguru K. 2016. Physiochemical and sensorial properties of biscuits prepared from elephant apple powder based composite flour. International Journal of Agriculture Sciences, ISSN, pp.0975-3710.

2.     Nayak, P.K., Dash, U.M.A., Rayaguru, K. and Krishnan, K.R., 2016. Physiochemical changes during repeated frying of cooked oil: A Review. Journal of Food Biochemistry, 40(3), pp.371-390.

3.     Nayak, P.K., Dash, U. and Rayaguru, K., 2016. Quality assessment of mustard oil in deep fat frying. Asian Journal of Dairy and Food Research, 35(2), pp.168-171.

4.     Meher, J.M., Mishra, B.K., Nayak, P.K. and Singh, V., 2016. Effect of pre-drying and frying kinetics of sweet potato (Ipomoea batatas l.) chips. Int Quarterly J Life Sci, 10(2), pp.521-525.






# Course Name Code Credits Semester
1 Food Process Engineering FPT 502 6 5
Units Chapter Course Materials/Slides

PhD-03 (Undergoing); 01 (Thesis submitted)

M.Tech - 10 (Completed) 01- Undergoing

M.Sc. - 01 (Completed)

B.Tech-27 (Completed) 02-Undergoing