Staff Profile

Positions held:

• Senior Lecturer Gr I –Promoted to Senior lecturer Grade – I effective from 31.12.2018.
• Senior Lecturer Gr II –Promoted to Senior lecturer Grade -II effective from 14^th December, 2015.
• Lecturer (Probationary), Department of Bio Science, Faculty of Applied Science from 01.01.2008 to13.12.2015.
• Junior Program Officer (North) Lanka Tsunami Relief Team, World Vision, Jaffna. 2007 March to 2007 April
• Zonal Agronomist (North), Lanka Tsunami Relief Team, World Vision, Jaffna from 2006 February to 2007 February.
• Assistant Lecture at Department of Agricultural chemistry, Faculty of Agriculture, University of Jaffna, Sri Lanka. 2005 September to 2006 January
• Research Associate, Energy Field of Study, Asian Institute of Technology, Bangkok, Thailand, 2004 August to 2005 April.
• Demonstrator, at Department of Agriculture Biology, Faculty of Agriculture, University of Jaffna, Sri Lanka. 2001 October to 2002 August.

Administrative posts

• Dean Faculty of Applied Science, University of Vavuniya from 17.06.2022to16.06.2025.
• Head Department of Bio Science, Faculty of Applied Science from 07.09.2017 to 26.04. 2019
• Head Department of Bio Science, Faculty of Applied Science from 24.06.2019 to until 16.07.2022
• Senior Treasurer ENSOC- Environmental Society from 2016, August to 2020 April

Postgraduate Supervision

• V. Diluxi .2021. “Study on the Development of Pro biotic Properties during Preparation of Idli”. MSc. in Food Science and Technology, PGIA, University of Peradeniya.

Contributions at National/University level

At National level

• Co Controller Examiner for A/ Level practical Examination in Biosystem Technology at 2017, 2018 and 2019.

At University Level

• Co-Editor, Vavuniya Journal of Science 2022 to until now.
• Co-Editor, Faculty Annual Research session -2021.
• Chairman for Conducting faculty annual Research session (FARS) on 2022,2022 and 2024.
• Chairman in organizing silver jubilee function of the faculty of Applied Science, 2022.
• Member Faculty Research Committee at Faculty of Applied Science -2016, 2017.
• Committee member Vavuniya Campus Annual Research Session (VCARS) – 2010, and Vavuniya Campus International Research Symposium VCIRS-2017.
• An action committee member of Vavuniya Campus Annual Research Session (VCARS) – 2017.
• Committee member for Journal of Science and Management – 2017.
• Committee member for Editorial Board for the VCIRS-2017.
• Functioning as Student Counsellor since 1^st September, 2009 up to September, 2010.
• Member for silver jubilee subcommittee for appreciation and award committee July, 2018
• Member of the curriculum development committee for the technological studies stream at Faculty of Applied Science.
• Member for proposal writing for establishing Faculty of Environmental science.
• Member of the curriculum revision committee for the existing degree program me on Bachelor of Environmental Science at Faculty of Applied Science.
• Member – Faculty Level Curriculum Evaluation Committee since, July, 2017
• Student counselor
• Senior Treasurer ENSOC (Environmental Society), Faculty of applied Science, from 2016 August to april2020.
• Chairman: Curriculum development for Biosystem technology -2021
• Evaluator for research projects food science and technology and examiner for best research award for faculty of Agriculture, and Technology university of Jaffna.
• Resource person for guest lectures and session chair for conference.
• Reviewing research papers and articles national and international.
• Functioning as Academic counsellor, 2018.
• Functioning as Vice president and member of Vavuniya Campus Teachers’ Association (VCTA).
• Contributed to conceptualization, and establishment of yoghurt production unit, mushroom production unit, Apiculture Unit, Eco friendly plate making unit and Molecular laboratory under Ahead Grant.
• Contributed to establish the Business Incubation and Innovation Cell under faculty of Applied Science included with the two-daughter cell, BIIC Depart of Physical and Bio Science.
• Guiding and contributed to proposal writing for the building proposal for the faculty of Applied science

Resource Person:

• Resource person for conducting   Guest Lecture on “Shape your meal and shape your body for Nutrition awareness program, June, 2016. – Staff Development Centre, Vavuniya Campus of the University of Jaffna.
• Speech and awareness creation on Food, Nutrition and Health – for school children and Teachers (Jaffna Hindu Ladies College (Jaffna) in the Science Day, October, 2017.
• Resource person for webinar Talk series on’ Exploring the communal interactions of probiotic, prebiotic, and   fermented foods ‘held on 21.04.2022, organized by Sri Lankan Society of Microbiology.
• Guest speech on Interactions of Probiotics, Prebiotics and Fermented Foods and Their Beneficial Features, 10th International Conference on Fermented Foods, Health Status and Social Well-being, December 17/18, 2021.Reserch Council, University of Peradeniya.
• Keynote address on Enhancing Human Health by Nurturing the Gut Microbiome: A Pathway to a Balanced Lifestyle.” 04th Student Research Symposium, held on 28th of June 2025, organized by Zoological Students’ Association (ZSA), Department of Zoology, Faculty of Science, University of Jaffna.

Teaching for undergraduates:

• Basic Microbiology/ Fundamental in Environmental Microbiology
• Development Physiology and Post-Harvest Technology
• Food, Nutrition and Environment
• Environmental sanitation and Health
• Environmental Biotechnology
• Pesticide chemistry and Environmental toxicology
• Basic Science for Non-Science students
• Seminar

Refereed Journals 

• Perampalam, M., & Nimalan, J. (2025). Growth and yield performance of oyster mushroom (Pleurotus ostreatus) cultivated in different biowastes. Sri Lanka Journal of Sustainable Development Studies, 1(1), 44–51.
• Vimalaveera, S. I., Nimalan, J., Gamage, A., Merah, O., & Madhujith, T. (2025). In vitro analysis of antifungal activity of the selected weed species against Rhizoctonia solani Journal of Natural Pesticide Research, 12. https://www.sciencedirect.com/science/article/pii/S2773078625000068
• Jeyagowri, N., Ranadheera, C. S., Manap, M. Y., Gamage, A., Merah, O., & Madhujith, T. (2023). Molecular identification of potentially probiotic Lactobacillus isolated from fermented rice: Phenotypic characterization. Fermentation, 9, 807. https://doi.org/10.3390/fermentation9090807
• Shama, A. F., & Jeyagowri, N. (2023). Effects of foliar application of fermented fish waste solution from yellowfin tuna (Thunnus albacares) on growth and yield of MI-2 chilli (Capsicum annuum). Ceylon Journal of Science, 52(3), 331–337. https://doi.org/10.4038/cjs.v52i3.8073
• Bernard, D., Jeyagowri, N., & Madhujith, T. (2021). Characterization of lactic acid bacteria isolated from idli batter and their susceptibility to antibiotics. Tropical Agricultural Research, 32(4), 453–461.
• Krishnapriya, N., & Nimalan, J. (2019). Cytogenotoxicity evaluation of wastewater effluent discharged from service station using Allium cepa Journal of Science and Management, Vavuniya Campus of the University of Jaffna.
• Kodippili, K. P. A. N., & Nimalan, J. (2018). Effect of homemade effective microorganisms on the growth and yield of chilli (Capsicum annuum) MI-2. AGRIEAST: Journal of Agricultural Sciences, 12(2), 27–34.
• Jeyagowri, N. B., Parahitiyawa, J. A. M. S., Jeyatilake, C. S., Ranadheera, C. S., & Madhujith, T. (2015). Study on isolation of potentially probiotic Lactobacillus from fermented rice. Tropical Agricultural Research, 26(3), 428–440.
• Jeyagowri, K., Alfredo, J. A., Gulelat, D. H., & Sudip, K. R. (2008). Production, purification and characterization of Bacillus GRE7 xylanase and its application in eucalyptus kraft pulp bioleaching. World Journal of Microbiology and Biotechnology, 24, 605–612.

Peer reviewed presentations/ publications as full paper at National / International conference

Presentation

Oral presentation

• Jeyagowri, N., Madhujith, M.M.T., Parahitiyawa, N.B., Jeyatilake, .J.A.M.S and Ranadheera_, S. (2016). Phenotypic characterization of potentially probiotic Lactobacillus sp. isolated from fermented rice, 5thAnnual Conference and Scientific Sessions of Sri Lankan Society for Microbiology (SSM), vol 4 21st October 2016, p-11.
• Jeyagowri, N., Parahitiyawa, N.B., Jeyatilake , J.A.M.S, Ranadheera_, S. and Madhujith, M.M.T. (2014) Antimicrobial activity of potentially probiotic Lactobacillus spp from fermented rice. Proceedings of the Peradeniya Univ. International Research Sessions, Sri Lanka, vol 18, July 4-5, 2014, P-182.
• Mary, P.L., Jeyagowri, N., Jeyathilake, J.A.M.S., Madhujith, W.M.T., Ransdheera, C.S., and Jeyawardna, N.W.I.A. (2013) Evaluation of the prebiotic effect of local yams grown in Sri Lanka with Lactobaillus curvatus. Proceedings of the Peradeniya Univ. International Research Sessions, Sri Lanka, vol 18, July 4-5, 2014, P-371.
• Jeyagowri, N., Madhujith, M.M.T., Parahitiyawa, N.B., Jeyatilake. J.A.M.S and Ranadheera, S. (2014) Study on Isolation of potentially probiotic Lactobacillus spp from fermented rice. 26^th annual congress, PGIA, November 20-21, 2014, P-8.
• Nimalan, J., Shanmuganathan, S. and Navaneethan, P. (2010). Causess and dynamics of Chronic Kidney Disease in Vavuniya District. Vavuniya Campus Annual Research Symposium. 27^thof October 2010, for the VCARS 2010
• Jeyagowri, N. and Sudip, K.R. (2008) Production, Characterization and Application of Thermostable xylanase from Bacillus licheniformis Published in the first annual sessions of the proceedings of Vavuniya Campus. November 200Area. 7th International Conference on Sustainable Built Environment. Sri Lanka 16 – 18 December. pp.47-53

Poster presentation

• Jeyagowri, N., Madhujith, M.M.T., Parahitiyawa, N.B., Jeyatilake, J.A.M.S and Ranadheera, C.S. (2013) Isolation of probiotic bacteria from fermented rice. 2nd Annual Conference and Scientific Sessions of Sri Lankan Society for Microbiology (SSM) – 2013, vol. 1 25th October 2013 p-32.
• Jeyagowri, N., Madhujith, M.M.T., Mary, P.I., Jayatilake, J.A.M.S., Ranadheera, R.D.C.S. and Jayawardena, N.W.I.A. (2013) Evaluation of the prebiotic effect of selected yam varieties. Proceedings of the International Conference on Nutraceuticals and Functional Foods, November 5-9, Taipei, Taiwan, p. 223.
• Jeyagowri, N., Madhujith, M.M.T., Parahitiyawa, N.B., Jeyatilake, J.A.M.S. and  Ranadheera, C.S. (2014) Isolation of potentially probiotic Lactobacillus spp from fermented rice. National Development through Research and Innovation” HETC Symposium 2014, 7th & 8th July at Hotel Galadari, Colombo

Published as Abstract

2025

• Nimalan, J., & Ramseen, R. (2025). Potential usage of banana pseudostem as a substrate in oyster mushroom cultivation. Proceedings of the International Conference on Multidisciplinary Approaches – 2025 (p. 13), Faculty of graduate study , University of Srijawardnapura
• Jinthusa, Y., Nimalan, J., & Niranjan, K. (2025, February 8). Investigating the antifungal potential of edible seaweed Ulva lactuca L. for food preservation. In Sustainability through innovations in mycology and plant pathology. Proceedings of the First International Conference in Mycology and Plant Pathology-2025 (p. 18). Sri Lanka Association for Mycology and Plant Pathology.
• Abarna, K., Nimalan, J., & Malathy, P. (2025, February 8). Assessment of fungal diversity in spoiled coconut kernels and evaluating antifungal activity of natural plant leaf extracts. In Sustainability through innovations in mycology and plant pathology. Proceedings of the First International Conference in Mycology and Plant Pathology-2025 (p. 19). Sri Lanka Association for Mycology and Plant Pathology.

2024

• Hirushanthy, K., & Jeyagowri, N. (2024, September 6). Evaluation of bee honey quality in the Nainamadu GN division, Vavuniya District, Sri Lanka. Proceedings of VINGNANAM Research Conference – 2024, (p. 37). UOJ,
• Rafaya, R., & Jeyagowri, N. (2024, December 7). Alternate substrate formula for mushroom cultivation by utilizing coir waste. 13th Annual Conference and Scientific Sessions of the Sri Lankan Society for Microbiology (SSM), Vol:12, p. 26.
• Pavithira, E., & Jeyagowri, N. (2024, December 7). Survival of probiotic lactic acid bacteria (LAB) in bee products incorporated bio-yoghurt. 13th Annual Conference and Scientific Sessions of the Sri Lankan Society for Microbiology (SSM), Vol:12, p.28.
• Ramseen, R., & Jeyagowri, N. (2024, August 29–30). Cultivation of Oyster Mushroom (Pleurotus ostreatus) using biowastes. Proceedings of the Peradeniya University International Research Sessions (iPURSE-2024), Vol:25, p.195.
• Pavithira, E., & Jeyagowri, N. (2024, September 11). Proximate composition and sensory characteristics of bee products incorporated bio-yogurt. Proceedings of the 10th International Conference on Dry Zone Agriculture (ICDA 2024), p.44.

2021

• Nafla, A. W. F., & Nimalan, J. (2021, December 17–18). Development of Nannari (Hemidesmus indicus) incorporated synbiotic yoghurt. 10th International Conference on Fermented Foods, Health Status and Social Well-being, p.79–84.
• Bernard, D., Jeyagowri, N., & Madhujith, T. (2021, December 17–18). Isolation of microorganisms in Idli batter and characterizing their probiotic properties. 10th International Conference on Fermented Foods, Health Status and Social Well-being,p. 79–85.
• Bernard, D., Jeyagowri, N., & Madhujith, T. (2021). Isolation and biochemical characterization of lactic acid bacteria from idli batter. Sri Lankan Journal of Infectious Diseases, 11(Suppl. 2), S2:9. https://doi.org/10.4038/sljid.v11i0.8372

2020

• Menuya, P., & Nimalan, J. (2020, October 22–23). Cultivation of Oyster Mushroom (Pleurotus ostreatus) by utilizing different biowastes. 27th Annual Scientific Sessions of Jaffna Science Association, p.27.
• Bernard, D., Jeyagowri, N., & Madhujith, T. (2020, December 3–4). Isolation of lactic acid bacteria from idli batter and assessing their antibacterial potential. Proceedings of the 6th International Conference on Dry Zone Agriculture (ICDA 2020).p.
• Bernard, D., Jeyagowri, N., & Madhujith, T. (2020, November 19–20). Characterization of lactic acid bacteria isolated from idli batter and their susceptibility to antibiotics. 32nd Annual Congress of PGIA, p.26.

 2019

• Ranasinghe, U. D. S. S., Nimalan, J., & Surendran, N. (2019, November 8–9). Evaluation of larvicidal effects of Parthenium hysterophorus L. leaf extracts against Aedes aegypti larvae using different solvents. 2nd South Asia Conference on Multidisciplinary Research, p. 18.

 2018

• Shah, P., & Nimalan, J. (2018, October 17–18). Assessment of fecal coliform contamination in domestic wells used for drinking purpose: A case study at Sopalapuliyankulum, Vavuniya District, Sri Lanka. Proceedings of the 4th International Research Symposium of Rajarata University of Sri Lanka, p.183.

2017

• Krishnapriya, N., & Nimalan, J. (2017, August 9). Cytogenotoxicity evaluation of wastewater effluent discharged from service stations using Allium cepa bioassay. Vavuniya Campus International Research Symposium – VCIRS-2017, p.15.

2016

• Jeyagowri, N., Madhujith, M. M. T., Parahitiyawa, N. B., Jeyatilake, J. A. M. S., & Ranadheera, C. S. (2016, October 21). Phenotypic characterization of potentially probiotic Lactobacillus sp. isolated from fermented rice. 5th Annual Conference and Scientific Sessions of Sri Lankan Society for Microbiology (SSM),Vol: 4,p. 11.

2014

• Jeyagowri, N., Parahitiyawa, N. B., Jeyatilake, J. A. M. S., Ranadheera, C. S., & Madhujith, M. M. T. (2014, July 4–5). Antimicrobial activity of potentially probiotic Lactobacillus spp. from fermented rice. Proceedings of the Peradeniya University International Research Sessions, Vol.18, P.182.
• Mary, P. I., Jeyagowri, N., Jayatilake, J. A. M. S., Parahitiyawa, N. B., & Madhujith, M. M. T. (2014, July 4–5). Evaluation of the prebiotic effect of local yams grown in Sri Lanka with Lactobacillus curvatus. Proceedings of the Peradeniya University International Research Sessions, Vol: 18, 371.
• Jeyagowri, N., Parahitiyawa, N. B., Jeyatilake, J. A. M. S., Ranadheera, C. S., & Madhujith, M. M. T. (2014, July 7–8). Isolation of potentially probiotic Lactobacillus spp. from fermented rice. HETC Symposium, National Development through Research and Innovation, Hotel Galadari, Colombo.
• Jeyagowri, N., Madhujith, M. M. T., Parahitiyawa, N. B., Jeyatilake, J. A. M. S., & Ranadheera, C. S. (2014, November 20–21). Study on isolation of potentially probiotic Lactobacillus spp. from fermented rice. 26th Annual Congress, PGIA, p.8.

 2013

• Jeyagowri, N., Madhujith, M. M. T., Mary, P. I., Jayatilake, J. A. M. S., Ranadheera, R. D. C. S., & Jayawardena, N. W. I. A. (2013, November 5–9). Evaluation of the prebiotic effect of selected yam varieties. International Conference on Nutraceuticals and Functional Foods, Taipei, Taiwan, p.223.
• Jeyagowri, N., Madhujith, M. M. T., Parahitiyawa, N. B., Jeyatilake, J. A. M. S., & Ranadheera, C. S. (2013, October 25). Isolation of probiotic bacteria from fermented rice. 2nd Annual Conference and Scientific Sessions of Sri Lankan Society for Microbiology (SSM), Vol:1, p.32.
• Mary, P. L., Jeyagowri, N., Jeyathilake, J. A. M. S., Madhujith, W. M. T., Ransdheera, C. S., & Jeyawardna, N. W. I. A. (2013, July 31). Evaluation of the prebiotic effect of local yams grown in Sri Lanka. 5th Undergraduate Research Symposium Proceedings, p.23.

 2010

• Nimalan, J., Shanmuganathan, S., & Navaneethan, P. (2010, October 27). Causes and dynamics of chronic kidney disease in Vavuniya District. Vavuniya Campus Annual Research Symposium,p. 24.

 2008

• Jeyagowri, N., & Sudip, K. R. (2008, November). Production, characterization and application of thermostable xylanase from Bacillus licheniformis GRE7. First Annual Sessions of the Vavuniya Campus,p. 89.

 2002

• Jeyagowri, K., Kudagamage, C., & Wijesekara, G. A. W. (2002, April). Control measures of whitefly Bemisia tabaci (Hemiptera: Aleyrodoidea) on Crossandra infundibuliformis. 10th Annual Sessions of the Jaffna Science Association, p.23.

• HECT: Awarded for following doctor of philosophy –HETC (Higher Education for twentieth Century projects 2010 (ref: JFN/Vav-C/N1).
• Recipient of Royal Netherlands Government Scholarship and AIT fellowship for following Master Degree program at AIT Research Grant.
• Under the UBL grant for research and innovation (AHEAD/RA3/UBL/UoV/OVAA/10), development of Nannari-incorporated probiotic yogurt has been completed.
• Investigation of the causes and dynamics of chronic renal disease in Vavuniya District. Research concluded under the research grant (number: UJ/VC/RG/2009/02) by the Vavuniya Campus of the University of Jaffna in December 2009

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