Dr. Natchimuthu  Karmegam

Dr. Natchimuthu Karmegam

Assistant Professor
Government Arts College, India


Highest Degree
Ph.D. in Vermitechnology from Gandhigram Rural Institute, India

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Area of Interest:

Plant and Soil Sciences
100%
Vermitechnology
62%
Medicinal Plant
90%
Plant Biotechnology
75%
Plant Tissue Culture
55%

Selected Publications

  1. Yuvaraj, A., R. Thangaraj, B. Ravindran, S.W. Chang and N. Karmegam, 2020. Centrality of cattle solid wastes in vermicomposting technology – A cleaner resource recovery and biowaste recycling option for agricultural and environmental sustainability. Environ. Pollut., 10.1016/j.envpol.2020.115688.
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  2. Yuvaraj, A., N. Karmegam, B. Ravindran, S.W. Chang, M.K. Awasthi, S. Kannan and R. Thangaraj, 2020. Recycling of leather industrial sludge through vermitechnology for a cleaner environment—A review. Ind. Crops Prod., Vol. 155. 10.1016/j.indcrop.2020.112791.
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  3. Thangamani, R., L. Baskaran, M. Prakash and N. Karmegam, 2020. Effect of pre-composting on seed viability and subsequent vermicomposting of an invasive alien weed, Alternanthera ficoidea (L.) P. Beauv. Int. J. Curr. Res. Biosci. Plant Biol., 7: 37-45.
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  4. Thangamani, R., L. Baskaran and N. Karmegam, 2020. Alarming spread of invasive weeds: A qualitative assessment and scope for sustainable weed biomass utilization. Int. J. Curr. Res. Biosci. Plant Biol., 6: 20-25.
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  5. Sivagami, M., M. Selvambigai, U. Devan, A.A.J. Velangani, N. Karmegam, M. Biruntha, A. Arun, W. Kim, M. Govarthanan and P. Kumar, 2020. Extraction of microplastics from commonly used sea salts in India and their toxicological evaluation. Chemosphere, 10.1016/j.chemosphere.2020.128181.
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  6. Singh, A., N. Karmegam, G.S. Singh, T. Bhadauria and S.W. Chang et al., 2020. Earthworms and vermicompost: an eco-friendly approach for repaying nature’s debt. Environ. Geochem. Health., 10.1007/s10653-019-00510-4.
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  7. Rini, J., M.P. Deepthi, K. Saminathan, R.T. Narendhirakannan, N. Karmegam and P. Kathireswari, 2020. Nutrient recovery and vermicompost production from livestock solid wastes with epigeic earthworms. Bioresour. Technol., 10.1016/j.biortech.2020.123690.
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  8. Poornima, S., P. Divya, N. Karmegam, V. Karthik and R. Subbaiya, 2020. Aqueous two-phase partitioning and characterization of xylanase produced by Streptomyces geysiriensis from low cost lignocellulosic substrates. J. Biosci. Bioeng., 10.1016/j.jbiosc.2020.07.008.
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  9. Karmegam, N., M. Jayakumar, M. Govarthanan, P. Kumar, B. Ravindran and M. Biruntha, 2020. Precomposting and green manure amendment for effective vermitransformation of hazardous coir industrial waste into enriched vermicompost. Biores. Technol., 10.1016/j.biortech.2020.124136.
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  10. Balachandar, R., M. Prakash and N. Karmegam, 2020. Statistical optimization of culture conditions for the production of bioactive compounds by Streptomyces spp. isolated from vermicasts. Int. J. Curr. Res. Biosci. Plant Biol., 6: 1-7.
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  11. Balachandar, R., M. Biruntha, A. Yuvaraj, R. Thangaraj and R. Subbaiya et al., 2020. Earthworm intervened nutrient recovery and greener production of vermicompost from Ipomoea staphylina – An invasive weed with emerging environmental challenges. Chemosphere, Vol. 263. 10.1016/j.chemosphere.2020.128080.
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  12. Yuvaraj, A., N. Karmegam, S. Tripathi, S. Kannan and R. Thangaraj, 2019. Environment-friendly management of textile mill wastewater sludge using epigeic earthworms: Bioaccumulation of heavy metals and metallothionein production. J. Environ. Manage., Vol. 254, 10.1016/j.jenvman.2019.109813.
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  13. Karmegam, N., P. Vijayan, M. Prakash and J.A.J. Paul, 2019. Vermicomposting of paper industry sludge with cowdung and green manure plants using Eisenia fetida: A viable option for cleaner and enriched vermicompost production. J. Cleaner Prod., 228: 718-728.
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  14. Biruntha, M., P. Mariappan, B.K. Selvi, J.A.J. Paul and N. Karmegam, 2019. Vermiremediation of urban and agricultural biomass residues for nutrient recovery and vermifertilizer production. Waste Biomass. Valor., 10.1007/s12649-019-00899-0.
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  15. Biruntha, M., N. Karmegam, J. Archana, B.K. Selvi and J.A.J. Paul et al., 2019. Vermiconversion of biowastes with low-to-high C/N ratio into value added vermicompost. Bioresour. Technol., Vol. 297, 10.1016/j.biortech.2019.122398.
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  16. Balachandar, R., P. Gurumoorthy, N. Karmegam, H. Barabadi and R. Subbaiya et al., 2019. Plant-mediated synthesis, characterization and bactericidal potential of emerging silver nanoparticles using stem extract of Phyllanthus pinnatus: A recent advance in phytonanotechnology. J. Cluster Sci., 10.1007/s10876-019-01591-y.
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  17. Balachandar, R., N. Karmegam, R. Subbaiya, P. Boomi, D. Karthik and M. Saravanan, 2019. Optimization of culture medium for improved production of antimicrobial compounds by Amycolatopsis sp.-AS9 isolated from vermicasts. Biocatal. Agric. Biotechnol., Vol. 20. 10.1016/j.bcab.2019.101186.
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  18. Balachandar, R., L. Baskaran, A. Yuvaraj, R. Thangaraj and R. Subbaiya et al., 2019. Enriched pressmud vermicompost production with green manure plants using Eudrilus eugeniae. Bioresour. Technol., Vol. 299, 10.1016/j.biortech.2019.122578.
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  19. Ananthavalli, R., V. Ramadas, J.A.J. Paul, B.K. Selvi and N. Karmegam, 2019. Vermistabilization of seaweeds using an indigenous earthworm species, Perionyx excavates (Perrier). Ecol. Eng., 130: 23-31.
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  20. Ananthavalli, R., V Ramadas, J.A.J. Paul, B.K. Selvi and N. Karmegam, 2019. Seaweeds as bioresources for vermicompost production using the earthworm, Perionyx excavates (Perrier). Bioresour. Technol., 275: 394-401.
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  21. Yuvaraj, A., N. Karmegam and R. Thangaraj, 2018. Vermistabilization of paper mill sludge by an epigeic earthworm Perionyx excavates: Mitigation strategies for sustainable environmental management. Ecol. Eng., 120: 187-197.
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  22. Balachandar, R., N. Karmegam, M. Saravanan, R. Subbaiya and P. Gurumoorthy, 2018. Synthesis of bioactive compounds from vermicast isolated actinomycetes species and its antimicrobial activity against human pathogenic bacteria. Microbial. Pathog., 121: 155-165.
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  23. Balachandar, R., N. Karmegam and J. Praburaj, 2017. Identification of Bioactive Compounds from Ethyl Acetate Extracts of Actinomycetes Isolated from Vermicast Soil. In: Conference Proceedings on Life Science: Research, Practices and Application for Sustainable Development, Ponmurugan, P., V. Ramasubramanian and T. Marimuthu (Eds.)., MacMilan Publishers, USA., pp: 62-70.
  24. Shanmugam, S., S. Balamurugan, B. Raja, R. Nagaraj, K. Rajendran and N. Karmegam, 2016. Floral diversity of Vaigai river in Thiruppuvanam region of Sivagangai district, Tamil Nadu, Southern India. Int. J. Curr. Res. Biosci. Plant Biol., 33: 96-105.
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  25. Shanmugam, S., R. Nagaraj, S. Balamurugan, B. Raja, K. Rajendran and N. Karmegam, 2016. Floristic composition of weeds in coconut (Cocos nucifera L.) plantations of Sivagangai district, Tamil Nadu, Southern India. Int. J. Curr. Res. Biosci. Plant Biol., 3: 121-126.
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  26. Jeyanthi, V., J.A.J. Paul, B.K. Selvi, M. Biruntha and N. Karmegam, 2016. Coelomic fluid protein profiling and heavy metal accumulation of three earthworms after exposure to pesticide and metal stress. Int. J. Adv. Multidiscip. Res., 3: 84-91.
  27. Jeyanthi, V., J.A.J. Paul, B.K. Selvi and N. Karmegam, 2016. Comparative study of biochemical responses in three species of earthworms exposed to pesticide and metal contaminated soil. Environ. Process., 3: 167-178.
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  28. Balachandar, R., K.A. Kumar and N. Karmegam, 2016. GC-MS analysis of ethyl acetate extract of Sterptomyces species isolated from vermicast. Int. J. Pharma Bio Sci., 7: 416-419.
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  29. Karmegam, N., R. Nagaraj, S. Karuppusamy and M. Prakash, 2015. Biological and pharmacological activities of Andrographis spp.(Acanthaceae) distributed in southern Eastern Ghats, India. Int. J. Curr. Res. Biosci. Plant Biol., 24: 140-143.
  30. John Paul, J.A., B.K. Selvi and N. Karmegam, 2015. Biosynthesis of silver nanoparticles from Premna serratifolia L. leaf and its anticancer activity in CCl4-induced hepato-cancerous Swiss albino mice. Applied Nanosci., 5: 937-944.
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  31. Rajasekar, K., T. Daniel and N. Karmegam, 2012. Microbial enrichment of vermicompost. ISRN Soil Sci., Vol. 2012. 10.5402/2012/946079.
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  32. Prakash, M. and N. Karmegam, 2012. In-Vitro Antibacterial Activity of Certain Plant Extracts Against Plant Disease Causing Bacteria Isolated from Citrus Plant. Int. J. Curr. Microbiol. Appl. Sci., 1: 1-11.
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  33. Karmegam, N., M. Jayakumar and S. Karuppusamy, 2012. Synergistic Antibacterial activity of four medicinal plants collected from Dharapuram Taluk of Truppur District, South India. J. Plant Sci., 7: 32-38.
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  34. Karmegam, N. and K. Rajasekar, 2012. Enrichment of biogas slurry vermicompost with azotobacter chroococcum and bacillus megaterium. J. Envir. Sci. Technol., 5: 91-108.
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  35. Paul, J.A.J., N. Karmegam and T. Daniel, 2011. Municipal Solid Waste (MSW) vermicomposting with an epigeic earthworm, Perionyx ceylanensis Mich. Bioresour. Technol., 102: 6769-6773.
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  36. Sekar, K.R. and N. Karmegam, 2010. Earthworm casts as an alternate carrier material for biofertilizers: Assessment of endurance and viability of Azotobacter chroococcum, Bacillus megaterium and Rhizobium leguminosarum. Sci. Hortic., 124: 286-289.
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  37. Prakash, M. and N. Karmegam, 2010. Vermistabilization of pressmud using Perionyx ceylanensis Mich. Bioresour. Technol., 101: 8464-8468.
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  38. Prakash, M. and N. Karmegam, 2010. Dynamics of nutrients and microflora during vermicomposting of mango leaf litter (Mangifera indica) using Perionyx ceylanensis. Int. J. Global Environ. Issues, 10: 339-353.
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  39. Kale, R.D. and N. Karmegam, 2010. The role of earthworms in tropics with emphasis on Indian ecosystems. Applied Environ. Soil Sci., Vol. 2010 10.1155/2010/414356.
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  40. Sekar, K.R. and N. Karmegam, 2009. Suitability of vermicasts as carrier material for a biofertilizer, Azosprillum brasilense (MTCC 4036). Dyn. Soil Dyn. Plant, 3: 143-146.
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  41. Sekar, K.R. and N. Karmegam, 2009. Efficiency of the Earthworm, Eisenia fetida (Sav.) in vermistabiliation of silkworm litter mixed with leaf litter. Int. J. Applied Environ. Sci., 4: 481-486.
  42. Prakash, M., M. Jeyakumar and N. Karmegam, 2009. Vermistabiliation of paper mill sludge using the earthworm Perionyx ceylanensis: Influence on physico-chemical and microbiological status. Indian J. Applied Microbiol., 10: 20-25.
  43. Nagaraju, M, B. Kadalmani, N. Karmegam, K. Palanivel and K. Shyam, 2009. Effect of distillery effluent on root-knot nematode Meloidogne incognita in growth of tomato and brinjal. J. Chem. Pharm. Sci., 2: 207-211.
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  44. Karmegam, N. and T. Daniel, 2009. Investigating efficiency of Lampito mauritii (Kinberg) and Perionyx ceylanensis Michaelsen for vermicomposting of different types of organic substrates. The Environ., 29: 287-300.
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  45. Karmegam, N. and T. Daniel, 2009. Growth, reproductive biology and life cycle of the vermicomposting earthworm, Perionyx ceylanensis Mich. (Oligochaeta: Megascolecidae). Bioresour. Technol., 100: 4790-4796.
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  46. Karmegam, N. and T. Daniel, 2009. Effect of application of vermicasts as layering media for an ornamental plant, Codiaeum variegatum (L.) Bl. Dyn. Soil Dyn. Plant, 3: 100-104.
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  47. Jayakumar, M., V. Karthikeyan and N. Karmegam, 2009. Comparative studies on physico-chemical, microbiological and enzymatic activities of vermicasts of the earthworms, Eudrilus eugeniae, Lampito mauritii and Perionyx ceylanensis cultured in press mud. Int. J. Applied Agric. Res., 4: 75-85.
  48. Bharathiraja, B., J. Jayamuthunagai, M. Jayakumar and N. Karmegam, 2009. Biosynthesis of cellulose protein from cheaper substrates using mixed culture of Trichoderma reesei and Penicillium funiculosum-a novel approach. Int. J. Applied Bioeng., 3: 11-16.
  49. Prakash, M., M. Jayakumar and N. Karmegam, 2008. Physico-chemical characteristics and fungal flora in the casts of the earthworm, Perionyx ceylanensis Mich. Reared in Polyalthia longifolia leaf litter. J. Applied Sci. Res., 4: 53-57.
  50. Paul, J.A.J., M. Biruntha, K. Saravanan and N. Karmegam, 2008. Enhancement of microbial load by vermicomposting native earthworms, Perionyx ceylanensis and Perionyx excavates in different substrates. Indian J. Applied Microbiol., 8: 15-18.
  51. Murugaian, P., V. Ramamurthy and N. Karmegam, 2008. Protein conversion efficiency of Labeo rohita in different cultural conditions. Int. J. Applied Environ. Sci., 3: 57-64.
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  52. Murugaian, P., V. Ramamurthy and N. Karmegam, 2008. Hepatoprotective activity of Wedelia calendulacea L. against acute hepatotoxicity in rats. Res. J. Agric. Biol. Sci., 4: 685-687.
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  53. Murugaian, P., V. Ramamurthy and N. Karmegam, 2008. Effect of temperature on the behavioural and physiological responses of catfish, Mystus gulio (Hamilton). J. Applied Sci. Res., 4: 1454-1457.
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  54. Karmegam, N., S. Karuppusamy, M. Prakash, M. Jayakumar and K. Rajasekar, 2008. Antibacterial potency and synergistic effect of certain plant extracts against food-borne diarrheagenic bacteria. Int. J. Biomed. Pharm. Sci., 2: 88-93.
  55. Karmegam, N. and T. Daniel, 2008. Effect of vermicompost and chemical fertilizer on growth and yield of hyacinth bean, Lablab purpureus (L.) sweet. Dyn. Soil Dyn. Plant, 2: 77-81.
  56. Prakash, M., V. Karthikeyan and N. Karmegam, 2007. Bacteriological studies in the fish samples with special reference to Vibrio parahaemolyticus. J. Ecobiol., 20: 175-178.
  57. Prakash, M., K. Rajasekar and N. Karmegam, 2007. Prevalence of methicillin resistant Staphylococcus aureus in clinical samples collected from Kanchipuram Town, Tamil Nadu, South India. J. Applied Sci. Res., 3: 1705-1709.
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  58. Prakash, M., K. Rajasekar and N. Karmegam, 2007. Bacterial population of raw milk and their proteolytic and lipolytic activities. Res. J. Agric. Biol. Sci., 3: 848-851.
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  59. Karmegam, N. and T. Daniel, 2007. Effect of physico-chemical parameters on earthworm abundance: A quantitative approach. J. Applied Sci. Res., 3: 1369-1376.
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  60. Prakash, M., V. Karthikeyan, S. Karuppusamy and N. Karmegam, 2006. Synergistic activity of certain plant extracts against Methicillin resistant Staphylococcus aureus (MRSA). J. Ecotoxicol. Environ. Monit., 16: 387-389.
  61. Prakash, M., V. Karthikeyan and N. Karmegam, 2006. Determination of total counts of psychrotrophic bacteria and coliforms in milk samples. J. Ecotoxicol. Environ. Monit., 16: 291-296.
  62. Prakash, M., S.A. Kumar and N. Karmegam, 2006. Synergistic effect of selected medicinal plant extracts against certain bacteria. Indian J. Applied Microbiol., 6: 16-17.
  63. Paul, J.A.J., N. Karmegam and T. Daniel, 2005. Effect of worm population on biomass of Eudrilus eugeniae in municipal solid waste and the status of microorganisms. J. Ecobiol., 17: 567-570.
  64. Karuppusamy, S. and N. Kamegam, 2005. Screening of ethno medicinal plants of Dindigul District (South India), for antimicrobial activity. J. Ecobiol., 17: 455-460.
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