P. A. Nimal Punyasiri

Author

Rubber Research Institute of Sri Lanka ORCID

Also Known As

P Punyasiri, P. A. N. Punyasiri, P. A. Nimal Punyasiri, P.A. Nimal Punyasiri, P.A.N. Punyasiri, PAN Punyasiri

Publications

630

Citations

H-Index

Concepts

All Affiliations

Rubber Research Institute of Sri Lanka University of Peradeniya University of Colombo Industrial Technology Institute

About

P. A. Nimal Punyasiri is an author at Rubber Research Institute of Sri Lanka specializing in medicine, pharmacology, and bioanalysis.

Top Concepts

#	Concept	H-Index	Publications	Citations
1	Medicine	9	9	247
2	Biochemistry	4	4	305
3	Engineering	2	2	214
4	Natural Sciences	2	2	33
5	Biology	2	2	33

P. A. Nimal Punyasiri

Publications

516

Citations

H-Index

Page 1

	Year	Citations
Flavonoid biosynthesis in the tea plant Camellia sinensis: properties of enzymes of the prominent epicatechin and catechin pathways P. A. Nimal Punyasiri, I. Sarath B. Abeysinghe, Vinay V. Kumar, Archives of Biochemistry and Biophysics BiosynthesisEngineeringCatechin PathwaysBiochemistryProminent Epicatechin	2004	198
Preformed and Induced Chemical Resistance of Tea Leaf Against Exobasidium vexans Infection P. A. Nimal Punyasiri, I. Sarath B. Abeysinghe, Vijaya Kumar Journal of Chemical Ecology Induced Chemical ResistanceInduced ResistancePlant PathologyMicrobiologyHost Resistance	2005	50
Development and validation of a method for direct, underivatized analysis of free amino acids in rice using liquid chromatography–tandem mass spectrometry G.V.V. Liyanaarachchi, K.R.R. Mahanama, H.P.P.S. Somasiri, Journal of Chromatography A Food ChemistryAgricultural ChemistryBiochemistryUnderivatized AnalysisMedicine	2018	50
Separation of proanthocyanidins isolated from tea leaves using high-speed counter-current chromatography N. Savitri Kumar, W.M.A. Maduwantha B. Wijekoon, Vijaya Kumar, Journal of Chromatography A High-speed Counter-current ChromatographyBiochemistryBioassay-guided IsolationMedicineTea Leaves	2008	41
Genetic Variation of Flavonols Quercetin, Myricetin, and Kaempferol in the Sri Lankan Tea (<i>Camellia sinensis</i>L.) and Their Health-Promoting Aspects Brasathe Jeganathan, P. A. Nimal Punyasiri, J. Dananjaya Kottawa-Arachchi, International Journal of Food Science	2016	37
Validation of a reversed-phase high-performance liquid chromatographic method for the determination of free amino acids in rice using l-theanine as the internal standard G.V.V. Liyanaarachchi, K.R.R. Mahanama, H.P.P.S. Somasiri, Food Chemistry Food ChemistryGas ChromatographyMedicineFood AnalysisBioanalysis	2017	22
New Sample Preparation Method for Quantification of Phenolic Compounds of Tea (<i>Camellia sinensis</i>L. Kuntze): A Polyphenol Rich Plant P. A. Nimal Punyasiri, Brasathe Jeganathan, J. Dananjaya Kottawa-Arachchi, Journal of Analytical Methods in Chemistry Food ChemistryPhenolic CompoundsPolyphenolicsFood Bioactive CompoundMedicine	2015	21
Exobasidium vexans infection of Camellia sinensis increased 2,3-cis isomerisation and gallate esterification of proanthocyanidins P. A. Nimal Punyasiri, Gregory J. Tanner, I. Sarath B. Abeysinghe, Phytochemistry BiosynthesisBioorganic ChemistryAntiparasitic AgentMedicine2,3-Cis Isomerisation	2004	21
Guatemalan potato moth Tecia solanivora distinguish odour profiles from qualitatively different potatoes Solanum tuberosum L. Frida Karlsson, Göran Birgersson, Peter Witzgall, Phytochemistry BiologyDistinguish Odour ProfilesBotanyNatural SciencesEntomology	2012	17
Total and free amino acid contents of popular rice varieties (Oryza sativa L.) consumed in the capital city of Sri Lanka G.V.V. Liyanaarachchi, Mahanama KRR, H.P.P.S. Somasiri, Journal of the National Science Foundation of Sri Lanka	2020	17

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