Dr.A.Vengadaramana

Dr.A.Vengadaramana
Senior Lecturer Gr.I
B.Sc. [Hons] (Jaffna), M.Phil. (Jaffna), Ph.D. (Peradeniya)

vengad@univ.jfn.ac.lk
+94 21 222 9645

  • B.Sc  Specialization in Botany (Jaffna)
  • M.phil in Biochemistry (Jaffna)
  • Ph.D in Molecular Plant Pathology (Peradeniya)
  • Student’s councellor
  • Academic counsellor
  • Member of the science faculty research committee
  • Sub-editor Vingnanam Journal of Science
  • Plant morphology and anatomy
  • Biostatistics
  • Plant Pathology
  • Advanced Plant Pathology
  • Plant Breeding
  • Plant Responses
  • Forest Biology (MSc)

Research Interests 

Biochemistry and Fermentation technology, Molecular plant pathology, Applied Microbiology

Research articles 

  1. Vengadaramana, A., Balakumar, S. and Vasanthy Arasaratnam.(2011). Improving α-amylase production by Bacillus licheniformis ATCC 6346 with local nitrogen sources and amino acids supplementations. Journal of Archives of Applied Science Research, 3 (6):87-97
  2. Vengadaramana, A., Balakumar, S. and Vasanthy Arasaratnam.(2011). Purification and comparison properties of crude enzyme with purified α-amylase from Bacillus licheniformis ATCC 6346. European Journal of Experimental Biology, 1 (3):58-69
  3. Vengadaramana, A., Balakumar, S. and Vasanthy Arasaratnam.(2012). Production and optimization of α-amylase by Bacillus licheniformis ATCC 6346 in lab bench-scale fermenter. Journal of Microbiology and Biotechnology Research 2 (1): 190-211
  4. Vengadaramana, A., Balakumar, S. and V. Arasaratnam.(2012). Stimulation of thermal stability of α-amylase from Bacillus licheniformis ATCC 6346 by treating with cations. Ceylon Journal of Science (Bio. Sci.) 41 (1): 35-44
  5. Vengadaramana, A., and Jashothan, P.T.J (2012). Effect of organic fertilizers on the water holding capacity of soil in different terrains of Jaffna peninsula in Sri Lanka. Journal of Natural product and Plant resource 2 (4): 500-503
  6. Vengadaramana, A., Balakumar, S. and V. Arasaratnam (2012). Supplementation of carbohydrate to enhance the α-amylase production by Bacillus licheniformis ATCC 6346 in presence of seed cakes. Malaysian Journal of Microbiology 8(4):242-247
  7. Vengadaramana, A., Balakumar, S. and V. Arasaratnam (2013). Characteristic Analysis of Crude and Purified α-amylase from Bacillus licheniformis ATCC 6346 and comparison with Commercial enzyme. Scholars Academic Journal of Pharmacy 2(2):31-35
  8. Vengadaramana, A., Balakumar, S. and V. Arasaratnam (2013). Optimization of fermentation medium components to improve α-amylase production by submerged fermentation technology. Scholars Academic Journal of Pharmacy 2(2):180-186
  9. Vengadaramana, A. (2013). Industrial Important Microbial alpha-Amylase on Starch-Converting Process. Scholars Academic Journal of Pharmacy 2(3):209-221
  10. Vengadaramana, A. and D. M. De Costa (2014). Morphological and Pathogenic Variations of the Causal Organisms of Leaf Twister Disease of Red Onion (Allium cepa L.) in Jaffna District of Sri Lanka. Tropical Agricultural Research 25(3): 412-431.
  11. Vengadaramana, A. and D. M. De Costa (2014). Molecular and Pathogenic Diversity of the Causal Agents of Onion Leaf Twister Disease in Batticaloa District of Sri Lanka. Universal Journal of plant science 2(7): 121-127.
  12. Vengadaramana, A., Balakumar, S. and V. Arasaratnam (2014). Effect of temperature, pH, substrate (Starch) and glucose on stability of α-amylase from Bacillus licheniformis ATCC 6346. Scholars Academic Journal of Pharmacy 3(6):492-495.
  13. K. Rasangi Priyadarshani and Vengadaramana, A. (2015). Some Preliminary Studies of Colletotrichum musae Associated with Banana Anthracnose Disease in Jaffna District, Sri Lanka. Universal Journal of Agricultural research 3(6): 197-202.
  14. Vengadaramana, A., Mehala, U., Thananthika, S., Nirosha, R. and Kapilan, R. (2016). The Characterization of Amylolytic Enzyme Present in Fermented Sweet Sap of Palmyrah. Journal of Applied Biology & Biotechnology 4(3): 020-023.
  15. Asanka Indunil Kumari, Y.S.M and Vengadaramana, A. (2017). Stimulation of Defense Enzymes in Tomato (Solanum lycopersicum) and Chilli (Capsicum annuum L.) in Response to Exogenous Application of Different Chemical Elicitors. Universal Journal of Plant science 5(1): 10-15.
  16. Vengadaramana, A. and Laxmija, S. (2021). Morphological Characterization and effect of Extracts of some Medicinal Plants on the Control of Colletotricum isolates Associated with Papaya Anthracnose Disease. Tropical Journal of Natural Product Research 5(4): 649-655.

Abstracts

  1. Vengadaramana, A., Senthuran, A. and Vasanthy Arasaratnam. (2004). Some preliminary studies on the production and properties of -amylase from Bacillus licheniformis ATCC 6346. Proceedings of the 12th Annual Session of Jaffna Science Association, p06
  2. Vengadaramana, A., Balakumar, S. and Vasanthy Arasaratnam. (2005). Effect of different nitrogen sources on -amylase production from Bacillus licheniformis ATCC 6346. Proceedings of the 13th Annual Session of Jaffna Science Association, p07.
  3. Vengadaramana, A., Balakumar, S. and Vasanthy Arasaratnam. (2005). Influence of metal ions on activity and stability of -amylase from Bacillus licheniformis ATCC 6346. Proceedings of the 13th Annual Session of Jaffna Science Association, p10.
  4. Vengadaramana, A., Balakumar, S. and Vasanthy Arasaratnam. (2006). The effect of carbohydrate and amino acids on production of -amylase from Bacillus licheniformis ATCC 6346. Proceedings of the 14th Annual Session of Jaffna Science Association, p32.
  5. Vengadaramana, A., Balakumar, S. and Vasanthy Arasaratnam. (2006). Purifiction of extracellular -amylase produced by Bacillus licheniformis ATCC 6346. Proceedings of the 14th Annual Session of Jaffna Science Association, p39.
  6. Vengadaramana, A., Balakumar, S. and Vasanthy Arasaratnam. (2006). Production of -amylase by Bacillus licheniformis ATCC 6346 in fermenter under controlled conditions. Proceedings of the 14th Annual Session of Jaffna Science Association, p43.
  7. Vengadaramana, A., Balakumar, S. and Vasanthy Arasaratnam. (2006). Comparision kinetic properties of crude and purified -amylase from Bacillus licheniformis ATCC 6346 with commercial amylase from Bacillus licheniformis. Proceedings of the 14th Annual Session of Jaffna Science Association, p46.
  8. Vengadaramana, A., Balakumar, S. and Vasanthy Arasaratnam.(2008) Optimization of media compositions to improve -amylase production by Bacillus licheniformis ATCC 6346. Proceedings of the 15th Annual Session of Jaffna Science Association, p60
  9. Vengadaramana, A., Balakumar, S. and Vasanthy Arasaratnam.(2008) Scaling up of -amylase production by Bacillus lichenifomis ATCC 6346 to large laboratory level. Proceedings of the 15th Annual Session of Jaffna Science Association, p59
  10. Vengadaramana, A., Balakumar, S. and Vasanthy Arasaratnam.(2008) Supplementation of amino acids to coconut seed cake to enhance α-amylase production by Bacillus licheniformis ATCC 6346. Proceedings of the 15th Annual Session of Jaffna Science Association, p56.
  11. Kanapathy Gajapathy, Sundaralingam Saravanan, Ranganathan Kapilan and Arumugam Vengadaramana (2009). Coliforms in the ground water of University of Jaffna premises and surroundings after the cyclone, Nisha 2008. Proceedings of the 16th Annual Session of Jaffna Science Association, p06
  12. Vengadaramana, A., Balakumar, S. and Vasanthy Arasaratnam.(2009). Single step purification of -amylase production by Bacillus licheniformis ATCC 6346 Using DEAE-Sepharose. International Conference on Frontiers in Molecular Life Sciences, 16th to 18th September 2009 Colombo Sri Lanka
  13. Vengadaramana, A., Jeyaseelan, E. C. And Thavaranjit, A. C. (2010). Effect of selected soil borne Bacteria on the germination of some seeds of Fabaceae family. Proceedings of the 17th Annual Session of Jaffna Science Association, p03.
  14. Vengadaramana, A., Jeyaseelan, E. C. And Thavaranjit, A. C. (2010). Study the effect of local Nitrogen sources on the development of bacterial culture. Proceedings of the 17th Annual Session of Jaffna Science Association, p04.
  15. Vengadaramana, A., and Jashothan, P.T.J (2010). Preliminary studies on the effect of UV-A radiation on seedlings of Green gram and Black gram. Proceedings of the Vavuniya Campus Annual Research Session – VCARS 2010, p12.
  16. L. Madushani, A. Vengadaramana and D. M. De Costa (2013). Pathogenic variations of Colletotrichum spp. causing the Leaf Twister Disease of onion. Peradeniya University Research Sessions PURSE 2012, 17:219
  17. D. N. Menike, A. Vengadaramana and D. M. De Costa (2013). Molecular identification and characterization of Fusarium species causing Leaf Twister disease of onion. Peradeniya University Research Sessions PURSE 2012, 17:222
  18. L. Madushani, A. Vengadaramana and D. M. De Costa (2013). Morphological and pathogenic variations of causal organisms of leaf twister disease of onion. Proceedings of the undergraduate research of Department of Agricultural Biology, Faculty of Agriculture, University of Pradeniya, 3:115-118.
  19. D. N. Menike, A. Vengadaramana and D. M. De Costa (2013). Molecular variations of Colletotrichum spp. and Fusarium spp. causing Leaf Twister Disease of onion. Proceedings of the undergraduate research of Department of Agricultural Biology, Faculty of Agriculture, University of Pradeniya, 3:148-151.
  20. Arumugam Vengadaramana, G. D. N. Menike and D. M. De Costa (2013). Genomic variation of Colletotrichum and Fusarium isolates causing Leaf Twister disease of onion (Allium cepa). International conference on Agriculture & Animal sciences 2013, 8th– 9th July 2013, p52
  21. Arumugam Vengadaramana and D. M. De Costa (2014). Molecular and pathogenic diversity of the causal agents of onion leaf twister disease in Batticaloa district Sri Lanka. International conference on Agriculture and Forestry (ICOAF) 2014, 10th– 11th June 2014, Colombo, p42
  22. Arumugam Vengadaramana and D. M. De Costa. Identification of Fusarium species Causing Leaf Twister Disease of Onion in Trincomalee District, Sri Lanka by DNA-Based Molecular Technique. International conference on Agriculture, Economical and Medical Sciences (AEMS-2014) July 3-4, 2014 London.
  23. Manahari, A. Vengadaramana, D. M DeCosta (2014). Morphological and growth variations of isolates associated with anthracnose disease of banana. Peradeniya University International Research Sessions IPURSE 2014, July 4th – 5th, p531
  24. Vengadaramana and D. M. De Costa. Molecular Identification and Variation of Fusarium Species Causing Leaf Twister Disease of Onion in Jaffna district, Sri Lanka. 6th Indian Horticulre Congress-2014, November 6-9, Tamil Nadu Agricultural University Tamil Nadu, India, p390-391
  25. Vishnuvarthan, A.Vengadaramana and D. M. De Costa (2014). Molecular Characterization of Colletotrichum and Fusarium Isolates Associated with Leaf Twister Disease of Red onion in Jaffna District. Proceedings of 1st Faculty of Agriculture Undergraduate symposium (FAuRS). 23rd December 2014 ,University of Perdeniya, p149
  26. Vengadaramana, A. and D. M. De Costa (2015). Morphological and pathogenic variations of Colletotrichum and Fusarium Isolates responsible for Leaf Twister Disease of onion in Trincomalee district, Sri Lanka. 2nd International conference on Agriculture and Forestry (ICOAF) – 2015, 10th– 12th June 2015, Colombo, p36
  27. Vengadaramana, A. and D. M. De Costa (2017). Molecular identification and genomic variation of Colletotrichum causing leaf twister disease of onion in Jaffna district, Sri Lanka by PCR-RFLP techniques. 2nd Asia-Pacific conference on multidisciplinary Research 2017, 29th– 30th July 2017, Colombo, p35
  28. Laxmija, S and Vengadaramana, A. (2017). Preliminary studies on Colletotrichum isolate associated with Papaya (Carica papaya L.) fruit anthracnose disease in the Jaffna district, Sri Lanka. 3rd International conference on Dryzone agriculture (ICDA) 2017, 1st – 2nd November 2017, Faculty of Agriculture University of Jaffna Sri Lanka.
  29. Laxmija, S and Vengadaramana, A. (2017). Preliminary assessment of clove (syzygium aromaticum), cinnamon (cinnamomum zeylanicum), holy basil (ocimum tenuiflorum) and balloon vine (cardiospermum halicacabum) on growth of colletotrichum 6th Annual Science Research Sessions – 2017, 28th November 2017, Faculty of Applied Science South Eastern University of Sri Lanka, Sammanthurai.
  30. Vengadaramana, A. and Laxmija, S. (2018). Development of Colletotrichum isolates Isolated from papaya (Carica papaya) fruit anthracnose disease in different culture media. 3rd Asia-Pacific conference on multidisciplinary Research 2018, 6th– 7th July 2018, Colombo, p13
  31. Gowthamy, T and Vengadaramana, A. (2019). Role of salicilic acid in growth and induction of plant defense enzymes in brinjal (Solanum melongena) plants. International conference on agriculture and food security 2019 [Agrifood 2019] , 08th– 09th August 2019, Colombo, p02
  32. Gowthamy, T and Vengadaramana, A. (2019). Role of salicilic acid in growth and induction of plant defense enzymes in okra (Abelmoschus esculentus) plants. First National symbosium of Sri Lanka associaton for mycology and plant Pathology (SLMPP), 30th August 2019, Kandy, p26
  33. Disanayaka, D. M. T. C., Pathmathas, T. and Vengadaramana, A. (2019). Some preliminary studies on the effects of gama radiation in corn, chilli and green gram seeds. International conference on agriculture and food security 2019 [Agrifood 2019] , 08th– 09th August 2019, Colombo, p04
  34. F. Sabria and A. Vengadaramana. (2019). Pcr-rflp based genetic diversity of colletotrichum musae isolates of banana in jaffna district. Proceedings of 9th International Symposium (Full Paper), South Eastern University of Sri Lanka,Oluvil. 27th – 28th November 2019: pp382-388.
  35. Ratnayake, H.K.L.M., Pathmathas, T., Vengadaramana, A. and Ramalingam, A. (2020). Effect of gamma irradiation on the growth and yield of green gram (Vigna radiata). Proceedings of 7th International Science and technology conference [RITSTCON 2020], 22nd January 2020, Matara
  36. Rafadha, M. R. F and Vengadaramana, A. (2020). Determination of kinetic parameters of Alpha-amylase from Baker’s yeast (Saccharomyces cerevisiae). Proceedings of 3rd National symposium of agriculture 2020. 15th july 2020, Faculty of Agriculture, Eastern University of Sri Lanka, p21.

  37. Rafadha, M. R. F and Vengadaramana, A. (2021). Effect of locally available carbon and nitrogen sources on the simultaneous production of α-amylase and bioethanol from Saccharomyces cerevisiae. Proceedings of 4th National symposium of agriculture 2021. 10th March 2021, Faculty of Agriculture, Eastern University of Sri Lanka, p25.

  38. Mathusha, M., Pathmathas, T. and Vengadaramana, A. (2021). Study the influence of UV-C radiation on growth of corn (Zea mays).Proceedings of International symposium on Agriculture and Environment 2021. 07th May 2021, Faculty of Agriculture, University of Ruhuna Sri Lanka, p46.

  39. Rushani, V, Nirmala, R, Vengadaramana, A, Kapilan, R and Eustace Y Fernando (2022). Proceedings of the 5th National symposium on Agriculture, EUSL.

Awards

  • Outstanding oral presentation award at the international conference on IMRF world research congress Sri Lanka 2016
  • Outstanding oral presentation award at the international conference on Agricultural, Economical and Medical Sciences (AEMS-2014) 2014 in London

Grants

  • Principal Investigator National Research Council (NRC) grant 2019 (NRC-19-075) – LKR 3,655000.00 – going on

          Title : Bioethanol production from marine algae

  • 2017 2017- Jaffna University Research Grant     LKR     800,000.00- completed
  • 2016- Jaffna University Research Grant LKR     800,000.00 -completed
  • 2015- Jaffna University Research Grant LKR     340,000.00- completed
  • 2011- University Grants Commission       LKR     750,000.00- completed
  • Research work in Department of Biotechnology, Lund University, Sweden (1st may 2005 to 31st Oct 2005) for six month under International Program In the Chemical Sciences (sida/SAREC funding program).
  • 01-5-2005 to 31-10-2005 Guest researcher (on contract) Dept.of Biotechnology, University of Lund, Sweden on a Scholarship under Sida/SAREC and International Science Program of Chemical Sciences, Sweden project