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Professor. (Mrs) P.A.Paranagama

Senior Professor & Chair of Chemistry
B.Sc.(Kelaniya)
M.Phil.(Kelaniya)
Ph.D.(Glasgow)
F.I.Chem.C.,C.Chem.

  Office: B1 339/2 
  Phone:+94112903262 and +94112914486
  Email: priyani@kln.ac.lk

Research and Teaching Interests

Isolation and characterization of bioactive compounds from endolichenic fungi
Value addition of essential oils  and spices
Trace elements in agrochemicals / soil / foods

Removal of hardness of water using phytoremediation
Develop bio-pesticides to control agricultural pests in Sri Lanka
Mode of action of bio-pesticides


Selected Publications

Jayasumana, M.A.C.S., Paranagama, P.A., Amarasinghe, M. D., Wijewardane, K.M.R.C., Dahanayake, K.S., Fonseka, S.I., Rajakaruna, K.D.L.M.P., Mahamithawa, A.M.P., Samarasinghe, U.D., Senanayake, V.K. (2013) Possible link of Chronic arsenic toxicity with Chronic Kidney Disease of unknown etiology in Sri Lanka, Journal of Natural Sciences Research, 3(1),  64-73

M.A.C.S.Jayasumana, P.A.Paranagama, M.Hettihewa, Effect of Melothria maderaspatana dry fruit preparation on serum creatinine levels of CKDu patients in Sri Lanka, (2012) Chinese journal of Pharmacology and toxicology, 26(5):737.

Balachandra, B. A. H. E., Pathirathna, P.U. and Parangama, P. A. (2011) Control of stored grain pest, Callosobruchus maculatus (F.) (Coleoptera: Bruchidae) using the essential oil isolated from Plectranthus zeylanicus, Natural Products Research, 1-4.

Paranagama, P. A. and   Gunasekera, J. A. (2011) The Efficacy of the Essential Oils of  Sri Lankan  Cinnamomum zeylanicum fruit and Micromelum minutum leaf against Callosobruchus maculatus (F.) (Coleoptera: Bruchidae), Journal of Essential Oil Research, 23,75 – 82.

Kannangara, B.T.S.D.P.,  Rajapaksha, R. S. C. G. and Paranagama, P.A. (2009) Nature and bioactivities of endolichenic fungi in  Pseudocypellaria sp., Parmotrema sp., and Usnea sp. at Hakgala montane forest in Sri Lanka, Journal of Letters in Applied Microbiology, 48, 203-209.

Wijeratne, E. M. K.; Paranagama, P. A.;Burns, A. M.; Marron, M. T.; Gunatilaka, M. K.; Arnold, A. E; Gunatilaka, A. A. L. (2008) Sesquiterpene Quinones and Related Metabolites from Phyllosticta spinarum, A Fungal Strain Endophytic in Platycladus orientalis of the Sonoran Desert,  J. Nat. Prod., 71, 218 – 222.

Paranagama, P.A. Wijeratne, E. M., and Gunatilaka, A. A. L. (2007) Uncovering Biosynthetic Potential of Plant-Associated Fungi: Effect of Culture Conditions on Metabolite Production by Paraphaeosphaeria quadriseptata and Chaetomium chiversii, J. Nat. Prod. 70, 1939 - 1945.

Paranagama, P. A.; Wijeratne, E. M. K.; Burns, A. M.; Marron, M. T.; Gunatilaka, M. K.; Arnold, A. E; Gunatilaka, A. A. L. Heptaketides from Corynespora sp. (2007) Inhabiting the Cavern Beard Lichen, Usnea cavernosa: First Report of Metabolites of an Endolichenic Fungus, J. Nat. Prod., 70, 1700–1705.

Wijeratne, E. M., Paranagama, P.A. and Gunatilaka, A. A. L. (2006): Five new isocoumarins from Sonoran desert plant-associated fungal strains Paraphaeosphaeria quadriseptata and Chaetomium chiversii, Tetrahedron, 62, 8439 – 8446.

Rubasinghe, G. R.S., Paranagama, P. A. and Abeywickrama, K.P. (2006) Physiochemical changes of stored cowpea, Vigna unguiculata treated with selected essential oils to control cowpea bruchid, Callosobruchus manculatus (F.), Journal of Food Agriculture and Environment,04, 41-44.



Faculty members