Professor (Microbiology)

Ph: +91 422 6611276, +91 422 2452405

Mobile: +91 944 3929 832 / 866 8136 334

skarthy@tnau.ac.in / s.karthy@gmail.com

ORCID iD https://orcid.org/0000-0003-1003-3546

Scopus Author ID 55637842300

Web of Science ResearcherID AAI-8511-2020

Course website: http://katztnau.webnode.com / http://mbiol4enggs.webnode.com

Courses taught

• AGM 101 Agricultural Microbiology (for UG farm degrees)
• AGM 111 Microbiology (for UG Biotechnology)
• AGM 151 General Microbiology (for UG Food processing and Energy & environment degrees)
• AGM 301 Soil and Applied Microbiology / Agricultural Microbiology (for UG farm degrees)
• MCB 602. Bioenergetics and Microbial growth (Graduate course)
• MCB 603. Microbial Physiology (Graduate course)
• MCB 613. Fermentation Technology (Graduate course)
• MCB 612. Predictive Food Microbiology (Graduate course)
• MCB 812. Biochemical Engineering (doctoral)
• AGM 601. Advances in Fermentation (doctoral)

Research Interest

• Environmental biotechnology- fermentation technology – carbon sequestration - biofuels

Academic Background

• B.Sc. (Ag.) Major: Agriculture
• M.Sc. (Ag) Major: Agricultural Microbiology
• Ph.D. Major: Environmental Sciences
• Post Doctoral Fellow (DUT)

Membership in Professional Bodies

• Life member - Association of Microbiologists of India (496-2000)
• Life member - Madras Agricultural Students Union
• Life member - National Academy of Agricultural Resource Management
• Member - South African Society for Microbiology, South Africa
• Member - The American Biographical Institute, Research Board of Advisors
• Member - Centre for Science and Environment, India
• Member - Microbiologists Society, India
• Member - Environmental Information System (ENVIS), India

Academic Awards / Medals

• Prof. G.Rangasamy Gold Medal, 1995
• Dr Selman A Waksman Prize, 1995
• ICAR Senior Research Fellow, 1993
• Agricultural Scientists Recruitment Board selection, 1993
• Research Board of Advisors, The American Bibliographical Institute, 2000
• Young Scientist – SERC, Dept. of Science & Technology, GOI, 2004
• Best Presenter 2^nd, 2005
• Best Teacher Award, 2007
• ICAR – Senior Research Fellowship – Agricultural Microbiology, 1994
• Best presentation prize, International Summit on Exploring the Secrets of Biofuels, 2011
• Best poster prize, 5th International Conference on Sustainable Utilization of Tropical Plant Biomass: Bioproducts, Biocatalysts and Biorefinery (SutB4), 2016
• Elsevier Outstanding Contribution of Reviewing, 2016, 2018

Institutional experience

• AISHE University Nodal Officer from 2013 to till date.
• Nodal Officer for Online Student’s Grievance Redressal Portal Cell under UGC from 2014 to till date.
• Nodal Officer for UGC scholarships from 2014 to 2018.
• Nodal officer for UGC-MHRD, GOI-Digital India Week activities.
• Institutional responsibilities as e-class facilitator, Academic Counsellor, Academic Coordinator, Deputy Warden and Warden & UG Admission Committee in the past nine years.
• Member: Campus Development Committee, Students’ Welfare Committee, Hostel Management Committee, Canteen Committee, Hospital Committee, UG Admission Committee, Screening Committee for Faculty Career Advancement, University Accreditation Committee, Internal Quality Assurance Cell of TNAU.

Research Contributions

Externally funded Schemes

Enhancing learning outcome, employability and entrepreneurial skills of farm graduates through excellence in education [Nodal Officer and CoPI]; ICAR-NAHEP- IDP; 2019 - 2021; INR 2,986.63 lakhs

Strategies for management of Rice straw and microbial carbon use efficiency under changing climate (PI); ICAR -NICRA; 2018-2021; INR 32.20 lakhs

Screening iron efficient groundnut genotypes and assessing contribution of microbial siderophores in a calcareous soil using Iron-59 radiotracer (CoPI), GOI-DST SERB, 2018 - 2021; INR 36.4056 lakhs

Eliciting soil microbiome responses of rice for enhanced water and nutrient use efficiency under anticipated climate changes (PI); ICAR- NASF; 2015-2018; INR 57.114 lakhs

Development of hybrid high rate biomethanation reactor with locally available media for treating wastewater and solid waste (Co-PI); GOI, MNRE; 2014-2016; INR 59.32 Lakhs

US-India Consortium for Development of Sustainable Advanced Lignocellulosic Biofuel Systems; Indo-U.S. JCERD Center (IUSSTF) (PI); 2013-2016; INR 98.35 lakhs

Isolation of Clostridium strains and a two phase digestion system for efficient butanol production (PI); ICAR- NFBSFARA; 2013-2016; INR 48.67 lakhs

Poultry litter based biomethanation plant slurry handling and enrichment (CoPI); IOT Mabagas Limited; 2012-2014; INR 22.15 lakhs

Biodiesel production from algae (Investigator); Bharat Petroleum Chem. Ltd; 2012-2014; INR 32.23 lakhs

Soil organic carbon dynamics vis-à-vis anticipatory climate change and crop adaptation strategies; ICAR-NAIP; 2008 -2013; INR 68.45 lakhs

Consortia Research Platform on Energy from Agriculture (as investigator); ICAR; 2015-2019; INR 80.00 Lakhs

Development of efficient processes for biomethanation and bioremediation efficiency of cassava sago effluent by nitrogen amendments and Spirulina cultivation under High Rate Algal Pond (HRAP) system (CoPI); Ministry of Environment and Forest, GOI, New Delhi; 2014-2017; INR 36.38 lakhs

Molecular detection and quantification of Shiga-like toxin producing Escherichia coli in fresh vegetables (CoPI); Department of Biotechnology, New Delhi; 2014-2017; INR 25.27 lakhs

Fermented products from fruits, vegetables and cereals (Investigator); ICAR-AMAAS; 2008-2013; INR 84.85 lakhs

Bioprospecting microalgae for biodiesel production Collaborative project with CSIR & MUT as co-investigators (Operated at DUT, SA) (Investigator); PlantBio, South Africa; 2008-2010; ZAR 3,246,151

Development of a biological treatment technology for community wastewater (Principal Investigator); DST, Govt. of India; 2004-2007; INR 8.04 lakhs

Evaluation of the efficacy of VelparK4 60% WP on sugarcane weeds as post-emergent application (Co-Principal Investigator); Private agency (DuPont); 2006-2007; INR 4.76 lakhs

The evaluation of the efficacy of Azimsulfuron 50DF against transplanted rice weeds as post emergent application (Co-Principal Investigator); Private agency (DuPont); 2007- 2008; INR 4.80 lakhs

Evaluation of fermented vegetables as effective prebiotic for probiotic lactobacilli (Principal Investigator); TNSCST; 2007; INR 0.10 lakhs

Studies on the assessment of soil health in the polluted areas of Vaigai river basin (Co-Principal Investigator); PWD/WRO, Environmental Cell; 2004; INR 7.22 lakhs

Estimating the therapeutic and nutraceutical uses of Bamboo (Co-Principal Investigator); National Mission on Bamboo; 2003-2006; INR 7.55 lakhs

Collection of methane and nitrous oxide gas samples in rice ecosystem (Co-Principal Investigator); National Remote Sensing Agency, Govt. of India; 2003-2004; INR 0.25 lakhs

VCS on Production of bioinoculants and their quality control; TNAU-VCS; 2003-2006; INR 1.24 lakhs

Analysis of energy generation potential of renewable energy sources and production of sale of improved chulhas; TNAU ERDF Venture capital scheme; 2015-tilldate; INR 3.0 lakhs as seed fund

Enhancing Biogas Promotion and implementation through commercial module and consultancy of Renewable energy system; TNAU ERDF Venture capital scheme; 2015-tilldate; INR 3.0 lakhs as seed fund

Professional works

Editorial work

• Journal Reviewer– Journal of Environmental Biology (ISSN 0254-8704), India
• Technical reviewer in ChimicaOggi/CHEMISTRY TODAY- Published by TeknoScienzeSrl, Milanao, Italy
• Editor for special thematic issue of Madras Agriculture Journal - Agricultural Graduate Student Conference 2013
• Reviewer – Journal of Ecological Engineering (International – Elsevier Inc.),
• Journal of Basic Microbiology (International – Wiley VCH),
• Biotechnology Progress (International – Wiley & Sons),
• Journal of Renewable and Sustainable Energy (International – Elsevier Inc.),
• Ecological Engineering (International – Elsevier Inc.),
• Environmental Technology (Taylor & Francis Co.),
• Archives of Agronomy and Soil Science (Taylor & Francis Co.),
• Journal of Environmental Biology (ISSN 0254-8704), India
• Technical reviewer in Chimica Oggi/CHEMISTRY TODAY- Published by Tekno Scienze Srl, Milanao, Italy
• Environmental Technology, Taylor & Francis Co.
• Archives of Agronomy and Soil Science, Taylor & Francis Co.
• Bioprocess and Biosystems Engineering, Springer

Professional affiliation

• Life Member – Madras Agricultural Students Union
• Life member – Association of Microbiologists of India (No. 496 – 2000)
• Life member - National Academy of Agricultural Resource Management
• Member - The American Biographical Institute, Research Board of Advisors
• Member - Centre for Science and Environment, India
• Member - Microbiologists Society, India
• Member - South African Society for Microbiology, South Africa

Technologies developed

• Developed a composting technology for the biodegradation of lignin rich waste coir dust.
• Bioconversion of lignin rich wastes to value added chemicals and humus rich polycondensates
• Developed biocomposting technology and specific bioinoculants for composting paper factory waste and sugar factory waste to use as organic manure at Seshasayee Paper Mills Pvt. Ltd, Cauvery and Ponni Sugars Pvt. Ltd., Erode.
• Developed biocomposting technology and bacterial inoculants for composting tannery solid waste and agro-waste for use as organic manure at M/s Abdul Azeez Co., Erode.
• Was one of the scientist involved in the development of Azophos, a dual biofertilizer inoculum containing N fixer and phosphate solubilizer.
• Involved in the development of Silicate Solubilizing Bacteria (SSB) and Zinc Solubilizing Bacteria (ZSB) and worked with student’s thesis work
• Was involved in the development of a cheap carrier material black ash for Biofertilizers, to reduce production cost and waste utilization.
• Developed a low-cost efficient technology for biological treatment of community wastewater.
• Developed Streptomyces violaceusniger, a hyper laccase producing actinomycete for applications in agriculture and bioremediation.
• Developed strains and technique for microalgal biofuel production.
• Technology for remediation of wastewater and to produce biofuels.
• Technology for algal and methanotroph mediated carbon sequestration in rice field ecosystem
• Biomass pretreatment for biofuel production
• Algae biomass cultivation system
• Utilization of wastewater for algal biofuels and resource recovery.

Policy reports / collaboration with Government Agencies

• Brainstorming Session on Recent Advances in Biomass Energy Research and Management, ICAR-Central Institute of Agricultural Engineering, Bhopal, 9^th November, 2017.
• National level Expert Committee Report on Revival of Biogas Plants in the context of Organic Farming, 01 June, 2015.
• National Lab Policy for Renewable Energy Sector to Ministry of New and Renewable Energy, 2016.
• Interactive meeting on Algal Biofuel Energy at State Planning Commission, Chennai on 20.03.2014
• Consortia Research Platform on Energy in Agriculture, Agricultural Energy and Power Division, Central Institute of Agricultural Engineering, July, 2013.
• Bioenergy Mission 2025 for Tamilnadu, submitted to the State Planning Commission, Tamilnadu, 2013.
• Evaluation Report on ONGC underground pipeline oil spill in paddy fields of Kilvelur block, Nagapattinam district, Tamilnadu, 2012.
• Assessment of environmental impact of rubber plantation of Kanyakumari district, 16-17 April, 2012.
• National Stakeholders’ meeting on Bamboo Mission, Commissionerate of Horticulture, Chennai, 04.06.2007.

Publications (last ten years)

• Veeramani Kathavarayan, S. Avudainayagam, K. Sara Parwin Banu, C. N. Chandrasekharan, S. Karthikeyan, K. Bhuvaneswari and P. T. Ramesh. 2019. Bioavailability of heavy metals and polycyclic aromatic hydrocarbon in long-term sewage-drained soils of Tamil Nadu. Current Science, 117 ( 3): 448-459.
• Rakesh, S.S., P.T. Ramesh, R. Murugaragavan, S. Avudainayagam and S. Karthikeyan. 2019. Characterization and treatment of grey water: A review. International Journal of Chemical Studies, 8(1): 34-40
• Nithiya, K., P. Subramanian, S. Karthikeyan and S. Sriramajayam. 2019. Laboratory estimation of Bio-crude production potential from selected agricultural residues. Journal of Agricultural Engineering, 56 (2): 72-79. [Best Paper Prize, ISAE]
• Suchitra Rakesh and Subburamu Karthikeyan. 2019. Co-cultivation of microalgae with oleaginous yeast for economical biofuel production. J. Farm Sci., 32(2): 1-6. [accepted].
• Suchitra Rakesh, Subburamu Karthikeyan and Dolly Wattal Dhar. 2019. Influence of thermal behavior and nutrient sources on microalgal biomass for fuel use. Int. J. Curr. Agri. Sci., 9 (05A): 401-406.
• Vinothini N, V Manonmani, S Sundareswaran, S Karthikeyan, N Maragatham and S Srinivasan. 2019. Biochemical changes associated with elevated carbon dioxide in rice (Oryza sativa L.), International Journal of Chemical Studies, 7 (3): 738-741.
• Suchitra Rakesh and Subburamu Karthikeyan. 2019. Economic feasibility of microalgal biodiesel production via indigenously designed tubular photobioreactor. J. Farm Sci., 32(2): [accepted].
• Vinothini Nedunchezhiyan, Manonmani Velusamy and Karthikeyan Subburamu (2019) Seed priming to mitigate the impact of elevated carbon dioxide associated temperature stress on germination in rice (Oryza sativa L.), Archives of Agronomy and Soil Science, DOI: 10.1080/03650340.2019.1599864
• Shalini Ramesh, Pugalendhi Sundararaju, Kamaludeen Sara Parwin Banu, Subburamu Karthikeyan, Uma Doraiswamy and Kamaraj Soundarapandian. 2018. Hydrothermal carbonization of arecanut husk biomass: fuel properties and sorption of metals. Environmental Science and Pollution Research. https://doi.org/ 10.1007/ s11356-018-3888-8. Springer-Verlag GmbH Germany.
• Maheshwari Packiam, Karthikeyan Subburamu, Ramesh Desikan, Sivakumar Uthandi, Marimuthu Subramanian, Kamaraj Soundarapandian. 2018. Suitability of Pearl Millet as an Alternate Lignocellulosic Feedstock for Biofuel Production in India. Journal of Applied & Environmental Microbiology, 6(2):51-58. DOI:10.12691/jaem-6-2-4
• Komalabharathi, P, S. Pugalendhi, P. Subramanian, S. Karthikeyan and R. Mahendiran. 2018. Thermal Performance Analysis and Prediction of Steam Production from Solar Paraboloid Concentrator using Multiple Linear Regression (MLR). Madras Agric. J., 105 (1-3): 117-119, DOI:10.29321/ MAJ.2018.000114
• Chandrasekar, V., S. Ganapathy, S. Karthikeyan and V.E. Nambi. 2018. Solid state fermentation of finger millets: Experimental investigation and modeling of pressure drop and gas holdup of finger millets bed. International Journal of Chemical Studies, 6(2): 2532-2538.
• Maheshwari P., S. Karthikeyan, D. Ramesh, U. Sivakumar, S. Marimuthu and S. Kamaraj. 2017. Combo catalytic hydrothermal pretreatment for lignocellulosic biomass biofuels production. Madras Agric. J., 104 (7-9): 269-272; doi: 10.29321/MAJ.2017.000058.
• Maheshwari P., S. Karthikeyan, D. Ramesh, U. Sivakumar, S. Marimuthu and S. Kamaraj. 2017. Comparison of chemical pretreatment for recovery of fermentable sugars and enzymatic saccharification. Madras Agric. J., 104 (7-9): 273-278; doi: 10.29321/MAJ.2017.000059
• Palanisamy M, S. Mukund, U. Sivakumar, S. Karthikeyan and V. Sivasubramanian. 2017. Biochar production from micro algal biomass of Chlorella vulgaris. Phykos 47 (1): 99-104
• Vijayanand, C., S. Kamaraj, S. Sriramajayam, S. Karthikeyan, A. Surendrakumar and Ramesh, D. 2017. A Probe into the biphasic nature of the Acetone butanol ethanol (ABE) fermentation by Clostridium acetobutylicum ATCC 824. Int. J. Curr. Microbiol. App. Sci. 6(4): 2179 - 2186. doi: https://doi.org/10.20546/ijcmas. 2017.604.255
• Bhattacharyya, P., K.S.Roy, M.Das, S.Ray, D.Balachandar, S.Karthikeyan, A.K.Nayak and T.Mohapatra. 2016. Elucidation of rice rhizosphere metagenome in relation to methane and nitrogen metabolism under elevated carbon dioxide and temperature using whole genome metagenomic approach. Science of The Total Environment, 542, 886-898. (TRIF: 4.41)
• Umamaheswari, T., Srimeena, N., Vasanthi, N., Cibichakravarthy, B., Anthoniraj, S. and S. Karthikeyan. 2016. Silica as biologically transmutated source for bacterial growth similar to carbon. Science Matters, 10.19185/matters. 201511000005.
• Chandrasekar, V., S Ganapathy, S Karthikeyan. 2016. Enhancing alpha amylase activity of finger millet (Eluesine coracana) for improving baking property through solid state fermentation. Advances in Life Sciences 5 (10), 4069-4076
• Vijayanand, C., Kamaraj, S., Karthikeyan, S and S. Sriramajayam. 2016. Characterization of Indigenous Biomass. International Journal of Agriculture Sciences, ISSN: 0975-3710 & E-ISSN: 0975-9107, 8 (50):2124-2127. (NAAS: 5.012)
• Vijayanand, C., Kamaraj, S., Karthikeyan, S and S. Sriramajayam. 2016. Dilute Acid Hydrolysis of Paddy Straw as Substrate for A.B.E Fermentation. International Journal of Agriculture Sciences, ISSN: 0975-3710 & E-ISSN: 0975-9107, 8 (50):2128-2132. (NAAS: 5.012)
• Gitanjali, J., S. Pugalendhi, S. Kamaraj, S. Karthikeyan and V.J.F.Kumar. 2015. Feasibility test of agricultural residues through characterization for utilization in plasma gasification. Indian Journal of Agricultural Sciences, 85(12): 1534-1539.
• Bhattacharyyaa, P., Roy, K.S., Das P.K., Neogi, S., Shahid, Md., Nayak, A.K., Raja, R., Karthikeyan, S., Balachandar, D. and K.S. Rao. 2014. Effect of elevated carbon dioxide and temperature on phosphorus uptake in tropical flooded rice (Oryza sativa L.). Europ. J. Agronomy, 53:28–37. http://dx.doi.org/10.1016/ j.eja.2013.10.008.
• Kiruthika R, S Kamaraj and S Karthikeyan. 2014. Microalgae cultivation in open ponds for biodiesel production. Trends in Biosciences, 7(14): 1703-1706.
• Preethi, B.M., Poorniammal, R., Balachandar, D., Karthikeyan, S*., Chendrayan, K., Bhattacharyya, P. and T.K.Adhya. 2012. Long-term organic nutrient managements foster the biological and carbon sequestering capability of wetland rice soil. Archives of Agronomy and Soil Science, DOI:10.1080/03650340.2012.755260.
• Mutanda, T., Karthikeyan, S. and F. Bux. 2011. The Utilization of Post-chlorinated Municipal Domestic Wastewater for Biomass and Lipid Production by Chlorellaspp. under Batch Conditions. Appl. Biochem. Biotechnol. 164 (7): 1126–1138.
• Bhola, V., Ramesh, D., Santosh, S.K., Karthikeyan, S., Elumalai, S. and F. Bux. 2011. Effects of parameters affecting biomass yield and thermal behaviour of Chlorella vulgaris. J. Biosci. Bioeng. 111(3): 377-382.
• Mutanda, T., D. Ramesh, S. Karthikeyan, S. Kumari, A. Anandraj, F. Bux. 2011. Bioprospecting for hyper-lipid producing microalgal strains for sustainable biofuel production. Bioresour. Technol. 102 (1): 57-70.
• Balachandar, D., Karthikeyan, S., Kumar, K. and K. Chendrayan. 2010. Improved diagnostic techniques for quality control of biofertilizers. Biofert Newlett. 18(1):3-8.
• Sivakumar, U., S. Karthikeyan and K. G. Sabarinathan. 2010. Gibberellic acid production by Fusarium fujikuroi SG2. Journal of Scientific & Industrial Research, 69: 211-214.

Books

• Ramasamy, K., S. Karthikeyan and U. Sivakumar. 2016. Biocatalysts: in biomass to bioproducts. Daya Publishing House (Astral International), New Delhi. ISBN: 978-93-86071-69-9,P.264.

Book chapters

• Iniya Kumar Muniraj, Ramesh Desikan and Karthikeyan Subburamu. 2020. Perspectives and Prospects of Fermentation Technology. In: Advances in Food Bioproducts and Bioprocessing Technologies, Mónica Lizeth Chávez-González, Nagamani Balagurusamy and Cristóbal N. Aguilar (Eds.), CRC Press, Pp.217-232.
• Chitdeswari, T., S. Karthikeyan and U. Sivakumar. 2020. Bioremediation of salt affected soils. In: Technological Advances in Enhancing Productivity of Salt Affected Soils, (Eds.) P.Masilamani, K. Arulmozhiselvan and P. Balasubramaniam, Today & Tomorrow’s Printers and Publishers, ND, pp. 743-770.
• Desikan Ramesh, Iniya Kumar Muniraj, Kiruthika Thangavelu, Subburamu Karthikeyan. 2019. Knowledge Update on Bioreactor Technology for Cellulase Production. In: New and Future Developments in Microbial Biotechnology and Bioengineering, From Cellulose to Cellulase: Strategies to improve Biofuel Production. (eds.) Neha Srivatsava et al. Elsevier, DOI: ISBN: 978-0-444-64223-3, pp.181-193.
• Desikan Ramesh, Iniya Kumar Muniraj, Kiruthika Thangavelu, Subburamu Karthikeyan. 2019. Chemicals and fuels production from agroresidues: A biorefinery approach. In: Sustainable Approaches for Biofuels Production Technologies – From Current Status to Practical Implementation. (eds.) Neha Srivatsava et al. Springer Nature Publishers, DOI: 10.4018/978-1-5225-3903-2, pp.33-60.
• Desikan Ramesh, Iniya Kumar Muniraj, Kiruthika Thangavelu, Subburamu Karthikeyan. 2018. Pretreatment of Lignocellulosic Biomass Feedstocks for Biofuel Production. In: Advanced Solid Catalysts for Renewable Energy Production. (eds.) Sergio González-Cortés and Freddy Emilio Imbert. IGI Global, USA, ISBN13: 9781522539032, EISBN13: 9781522539049, DOI: 10.4018/978-1-5225-3903-2, pp.33-60
• Ramesh Desikan and Subburamu Karthikeyan. 2016. Biomass pre-processing technologies for biofuel production. In: Biocatalysts: in biomass to bioproducts. (eds.) Ramasamy, K., S. Karthikeyan and U. Sivakumar. Daya Publishing House (Astral International), New Delhi. ISBN: 978-93-86071-69-9,P.21-42.
• Karthikeyan, S. 2013. Strain selection for biodiesel production. In: Biotechnological applications of microalgae: Biodiesel and value added products. (ed.) F. Bux. Taylor & Francis, CRC Press, ISBN 9781466515291, p. 255
• Ramesh, D., S. Karthikeyan and G. Chinnanchetty. 2012. Exploring the possibility of biofuel production from by-products and wastes generated from date industry. In: Dates: The Phoenix – Production, Processing, Food and Medicinal Values. (eds.) E.Manickavasagam, A. Essa and M. Mohamed Sukumar. CRC Press. ISBN: 978-1-4398-4945-3, pp. 265-274.
• Karthikeyan, S., D. Balachandar and K. Chendrayan. 2012. Impact of elevated carbon dioxide on soil microbial activity. In: Climate Change: Green house gas emission in rice farming and mitigation options. CRRI Publication, Cuttack, Odisha, india. pp.83-90.
• Anandhakrishnan, N., J. Prabakaran and S. Karthikeyan. 2005. In vitro production of IAA from elite N2 fixers and P solubilizers isolated from Vaigai, Cauveri, Tamirabarani rhizosphere regions. In: Advances in Environmental Biotechnology (eds.) A.D.Ravindran and M.S.Dhanarajan, Srishta Books.p.86-90.
• Jamuna, E., S. Karthikeyan and J. Prabakaran. 2005. Rhizosphere treatment technology for waste water treatment and quality improvement. In: Advances in Environmental Biotechnology (eds.) A.D.Ravindran and M.S.Dhanarajan, Srishta Books.p.104-108.
• Karthikeyan, S., K. Ramasamy and J. Prabakaran. 2005. Degradation of lignin by extracellular laccase enzyme from actinomycetes, Streptomyces violaceusniger. In: Advances in Environmental Biotechnology (eds.) A.D.Ravindran and M.S.Dhanarajan, Srishta Books.p.43-48.
• Karthikeyan, S., K. Ramasamy and J. Prabakaran. 2005. Partial characterization and specificity of laccase protein from Streptomyces violaceusniger. In: Advances in Environmental Biotechnology (eds.) A.D.Ravindran and M.S.Dhanarajan, Srishta Books.p.36-42.

Seminar/ workshop presentations [last five years]

• Vinothini, N., V. Manonmani, S. Karthikeyan, R. K. Bhavyasree and A. Isong. 2019. Tillering Dynamics of Rice under Elevated CO2 Condition. Proceedings of ASN 53rd Annual Conference. Paper presented in 53th Annual Conference of Agricultural Society of Nigeria, Building a Resilient and Sustainable Economy through Innovative Agriculture in Nigeria. 21st -25th October, 2019, NCRI, Badeggi, Nigeria, p.214-217
• Anupriya, R., K. Geetha Thanuja and S. Karthikeyan. 2018. Plant stress enzymes and polysaccharide production in rice ecosystem under elevated CO₂. Paper presented at the Global Cleanup Congress, 2018 organised by CRC Care, Australia, conducted at Coimbatore, India during 22-24 October, 2018.
• Karthikeyan, S., R. Anu Priya and K.GeethaThanuja. 2018. Interactive Effects of Moisture Stress and Temperature on Soil Functional Properties in Rice Systems under Anticipatory Climate Change. Paper presented at the Abiotic Stress Management for Sustainable Agriculture, 2018 organised by TNAU, Coimbatore, India during 25-26 October, 2018.
• Subburamu Karthikeyan. 2017. Biomass to biofuels. Paper presented at the National Conference on Biological Processes - Issues, Challenges and Opportunities (NCBP’17), September 21-22, 2017 at Mepco Schlenk Engineering College, Sivakasi.
• Narmada Priyadarshini, M, Jasmin Linda and S.Karthikeyan. 2017. Effect of elevated carbon dioxide (eCO2) on soil organic carbon content of soil. Paper presented at the National Symposium on Trends in Agricultural and Biosystems Engineering, TABE’ 2017, March 27-28, 2017 at Tamil Nadu Agricultural University, Coimbatore, p.96.
• Jinisha Blessie Johnson, Belli Raj, Desikan Ramesh, Zachariah John Kennedy and Subburamu Karthikeyan. 2017. Cost effective method for pretreatment of pearl millet biomass using catalytic downflow liquid contact reactor. Paper presented at the National Symposium on Trends in Agricultural and Biosystems Engineering, TABE’ 2017, March 27-28, 2017 at Tamil Nadu Agricultural University, Coimbatore, p.106.
• Nagajothilakshmi Kaliappan, Desikan Ramesh, Thangavel Kalaiselvi and Subburamu Karthikeyan. 2017. Influence of different organic carbon source on microalgae growth and biomass productivity. Paper presented at the National Symposium on Trends in Agricultural and Biosystems Engineering, TABE’ 2017, March 27-28, 2017 at Tamil Nadu Agricultural University, Coimbatore, p.112.
• Natarajan Belliraj and Subburamu Karthikeyan. 2017. Delignification of bamboo using diluted acid assisted catalytic down flow liquid contact pretreatment. Paper presented at the National Symposium on Trends in Agricultural and Biosystems Engineering, TABE’ 2017, March 27-28, 2017 at Tamil Nadu Agricultural University, Coimbatore, p.115.
• Mahendiran Ramasamy, S. Pugalendhi, S. Karthikeyan and M. Suguna Devakumari. 2017. Performance evaluation of pre-fabricated portable biogas plants with multi–varied feedstock in urban household. Paper presented at the National Symposium on Trends in Agricultural and Biosystems Engineering, TABE’ 2017, March 27-28, 2017 at Tamil Nadu Agricultural University, Coimbatore, p.171.
• Prabhakaran Sivalingam and Subburamu Karthikeyan. 2017. Bioaugmentation in anaerobic digesters for enhanced methane production. Paper presented at the National Symposium on Trends in Agricultural and Biosystems Engineering, TABE’ 2017, March 27-28, 2017 at Tamil Nadu Agricultural University, Coimbatore, p.232.
• Gowsalyadevi Arumugam, Desikan Ramesh and Subburamu Karthikeyan. 2016. Energy enhancement of acid pretreated stillage by biomethanation. Proceedings of the International Conference on Contaminated Site Remediation, CleanUp India 2016, December 13-15, 2016, TNAU, Coimbatore, p.353.
• Cibichakravarthy Balasubramanian, Nandhini Raja Manickkam, Subburamu Karthikeyan and Solai Ramatchandirane Prabagaran. 2016. Competence of enzymes by the digestomes from termites in the degradation of plant biomass. Paper presented at the 5th International Conference on Sustainable Utilization of Tropical Plant Biomass: Bioproducts, Biocatalysts and Biorefinery (SutB4), November 17-18, 2016 at Radisson Blu, Coimbatore, p.344-346.
• Jinisha Blessie Johnson, Maria Pragasam Jasmine Linda, Desikan Ramesh, Zachariah John Kennedy and Subburamu Karthikeyan. 2016. Cost effective method for pretreatment of pearl millet biomass using catalytic downflow liquid contact reactor. Paper presented at the 5th International Conference on Sustainable Utilization of Tropical Plant Biomass: Bioproducts, Biocatalysts and Biorefinery (SutB4), November 17-18, 2016 at Radisson Blu, Coimbatore, p.21.
• Maheswari Packiam, D Ramesh and Subburamu Karthikeyan. 2016. Comparison of chemical pretreatment for recovery of fermentable sugars. Paper presented at the 5th International Conference on Sustainable Utilization of Tropical Plant Biomass: Bioproducts, Biocatalysts and Biorefinery (SutB4), November 17-18, 2016 at Radisson Blu, Coimbatore, p.27.
• Maheswari Packiam, D Ramesh and Subburamu Karthikeyan. 2016. Combo catalytic hydrothermal pretreatment for lignocellulosic biomass biofuels production. Paper presented at the 5th International Conference on Sustainable Utilization of Tropical Plant Biomass: Bioproducts, Biocatalysts and Biorefinery (SutB4), November 17-18, 2016 at Radisson Blu, Coimbatore, p.41.
• Srimeena Nagaiah, Belliraj Natarajan, Desikan Ramesh and Subburamu Karthikeyan. 2016. Consolidated bioprocessing of lignocellulosic biomass to biofuel production. Paper presented at the 5th International Conference on Sustainable Utilization of Tropical Plant Biomass: Bioproducts, Biocatalysts and Biorefinery (SutB4), November 17-18, 2016 at Radisson Blu, Coimbatore, p.175.
• Gowsalyadevi Arumugam, Sivalingam Prabakaran, Desikan Ramesh and Subburamu Karthikeyan. 2016. Biomethanation of acid pretreated biofuel process stillage for enhanced energy. Paper presented at the 5th International Conference on Sustainable Utilization of Tropical Plant Biomass: Bioproducts, Biocatalysts and Biorefinery (SutB4), November 17-18, 2016 at Radisson Blu, Coimbatore, p.184. (Best poster prize).
• Nagajothilakshmi Kaliappan, Desikan Ramesh and Subburamu Karthikeyan. 2016. Mixotrophic growth on wastewater for sustainable algal biomass production. Paper presented at the 5th International Conference on Sustainable Utilization of Tropical Plant Biomass: Bioproducts, Biocatalysts and Biorefinery (SutB4), November 17-18, 2016 at Radisson Blu, Coimbatore, p.188.
• Gowsalyadevi, A., N. Srimeena, P. Maheswari, S.Karthikeyan and D.Ramesh. 2015. Bioconversion of pearl millet biomass: inhibitors and detoxification. Paper presented at International Symposium on Emerging Discoveries in Microbiology and 56th Annual Conference of Microbiologists of India, December 7-10, 2015 at JNU, New Delhi, p.534.