Publications

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Nutraceticals & Functional Foods

Plenary lectures & Country papers
Premakumara, G.A.S
Publication year: 2004

Investigating the effect of some tree characters and day and night temperature on sap yield and tapping duration in traditional kithul tapping

Conference paper presentations / workshop attended
Ranasinghe, P., Premakumara, G.A.S. and Somasiri, H.P.P.S
Publication year: 2004

Effect of human sperm motility stimulant S-ACT-1 isolated from Sri Lankan red alga Gelidiella acerosa on DNA.

Conference paper presentations / workshop attended
Premakumara GAS, Gunaratne KGNM, Ratnasooriya,W.D., Seneviratne, HR
Publication year: 2004

Effect of Guettarda speciosa L. (Rubiaceae) water extract on serum and liver lipids in rats

Conference paper presentations / workshop attended
Premakumara, G.A.S. and Ide, T
Publication year: 2004

A simple thin layer chromatographic method to differentiate neuro-toxic Vetch Vicia sativa from red lentils Lens culinaris. 

Conference paper presentations / workshop attended
Premakumara, G.A.S. and Bandara, V.S
Publication year: 2004

Semen quality of men in organic & conventional tea plantations and in urban population of Sri Lanka.

Conference paper presentations / workshop attended
Wijeratne, S, Mohotti, K. Seneviratne, HR, Premakumara, GAS, Ratnasooriya,W.D
Publication year: 2003

Adverse pregnancy outcome in rats following exposure to a Salacia reticulata (Celastraceae) root extract.

Journal Paper
Ratnasooriya W.D., Jayakody, J.R. and Premakumara G.A.S
Publication year: 2003

Sesame Lignans and Fish Oil EPA as a Functional Food or Nutraceutical

Plenary lectures & Country papers
Premakumara, G.A.S
Publication year: 2002

Non-nutritive values of Food.

Plenary lectures & Country papers
Premakumara, G.A.S
Publication year: 2002

Advances in Food Research: Challenges to Food Industry

Plenary lectures & Country papers
Premakumara, G.A.S
Publication year: 2002

Plasma desorption mass spectrometry (PDMS) of  plant extracts and its potential applications in quantitative estimations

Conference paper presentations / workshop attended
Dahanayake,SA, Barlo Daya,DDN,  Mohottalage,MSB, Premakumara, GAS and Ariyaratne,TR
Publication year: 2001

Interaction of Sesamin & EPA on Hepatic Fatty Acid Metabolism in the Rat.

Conference paper presentations / workshop attended
Premakumara, G.A.S. and Ide, T.
Publication year: 2001

Human sperm motility stimulating activity of a sulfono glycolipid isolated from Sri Lankan marine red alga Gelidiella acerosa.

Journal Paper
Premakumara, G.A.S., Ratnasooriya, W.D., Tillekeratne, L.M.V., Amarasekare, A.S. and Atta-Ur-Rahman
Publication year: 2001

Quick detectioin of active compounds in crude extracts of selected plants using plasma desorptiion mass spectrometry (PDMS)

Conference paper presentations / workshop attended
Dahanayake,SA, Barlo Daya,DDN,  Mohottalage,MSB, Premakumara, GAS and Ariyaratne,TR
Publication year: 2000

Plasma desorption mass spectrometry (PDMS) of crude extracts of selected medicinal plants

Conference paper presentations / workshop attended
Dahanayaka, SA, Barlo Daya DDN, Premakumara GAS and Ariyaratne.TR
Publication year: 2000

Spectral identification of a novel sphingolipid in the contraceptive fraction of Sri Lankan marine red alga, Gelidiella acerosa

Conference paper presentations / workshop attended
Premakumara, G.A.S., Tillekeratne,L.M.V, Ratnasooriya,W.D., Amarasekare, A.S. and Att-ur-Rahman
Publication year: 1999

Brine shrimp larvicidal activity of Piper betle leaf oil

Conference paper presentations / workshop attended
Premakumara, G.A.S., Mohottalage, M.B.S., Dayananda, K.R. and Arambewela, L.S.R
Publication year: 1999

Analgesic activity of 2-[N-(4-methylphenyl)sulfinamoyl]-1,4-napthoquinone, a member of new class of synthetic napthoquinones.

Conference paper presentations / workshop attended
Premakumara,G.A.S., Wimal Padmasiri, Ratnasooriya, W.D. and Amarasekare, A.S
Publication year: 1999

A New Immediate Post-implantation Contraceptive from Sri Lankan marine Red Alga

Conference paper presentations / workshop attended
Premakumara, G.A.S., Tillekeratne,L.M.V, Ratnasooriya,W.D., Amarasekare, A.S. and Att-ur-Rahman
Publication year: 1999

A Human Sperm Motility Stimulant from Sri Lankan Marine Red Alga, Gelidiella acerosa

Conference paper presentations / workshop attended
Premakumara, G.A.S., Tillekeratne,L.M.V, Ratnasooriya,W.D., Amarasekare, A.S. and Att-ur-Rahman
Publication year: 1999

Piper betle leaves reversibly inhibits fertility of male rats.

Journal Paper
Ratnasooriya, W.D. and Premakumara, G.A.S
Publication year: 1998

Human sperm motility stimulant S-ACT-1 of Sri Lankan marine red alga

Conference paper presentations / workshop attended
Premakumara, G.A.S., Tillekeratne,L.M.V, Ratnasooriya,W.D., Amarasekare, A.S. and Att-ur-Rahman
Publication year: 1998

A new sphingolipid from Sri Lankan marine red alga

Conference paper presentations / workshop attended
Premakumara, G.A.S., Tillekeratne,L.M.V, Ratnasooriya,W.D., Amarasekare, A.S. and Att-ur-Rahman
Publication year: 1998

Piper betle leaves impairs masculine sexual behaviour of rats

Journal Paper
Ratnasooriya, W.D. and Premakumara, G.A.S
Publication year: 1996

Premakumara, G.A.S., Ratnasooriya, W.D., Tillekeratne, L.M.V

Journal Paper
Publication year: 1996

Protection by Murraya koenigii leaf extract against ethanol induced gastric lesions in rats.

Journal Paper
Ratnasooriya, W.D., Premakumara, G.A.S. and Ananda, U.V.D.S
Publication year: 1995

Piper betle leaf extract impairs masculine reproductive behaviour in rats

Conference paper presentations / workshop attended
Ratnasooriya, W.D. and Premakumara, G.A.S
Publication year: 1995

Isolation of a post-implantation contraceptive agent from Sri Lankan marine red alga,

Conference paper presentations / workshop attended
Premakumara, G.A.S., Ratnasooriya, W.D., Tillekeratne, L.M.V. and Amarasekare, A.S
Publication year: 1995

Studies on the sedative activity of crude extract of root bark of Rauwolfia canescens on rats.

Journal Paper
Madawala, P.G., Arambewela, L.S.R., Premakumara G.A.S. and Ratnasooriya, W.D
Publication year: 1994

Post-coital contraceptive activity of crude extracts of Sri Lankan marine red algae

Journal Paper
Ratnasooriya, W.D., Premakumara, G.A.S., and Tillekeratne, L.M.V
Publication year: 1994
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