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K. G. Nelum P. Piyasena

Observed names: K. G. N. P. Piyasena, K.G. Nelum, K.G. Nelum P. Piyasena, K.G. Nelum P． Piyasena, K.G. Nelum. P. Piyasena, K.G. Nelum. P. Piyasena*, K.G.N.P. Piyasena, K.G.P. Piyasena
ORCID: 0000-0002-5577-2142
Observed ORCID: 0000-0002-5577-2142
OpenAlex ID: A5070175559
Antibacterial activity of α-mangostin against vancomycin resistant Enterococci (VRE) and synergism with antibiotics
2004 · Y. Sakagami, M. Iinuma, et al. · Phytomedicine · 231
Antibacterial activity of xanthones fromGarcinia mangostana(L.) and their structure–activity relationship studies
2012 · H.R.W. Dharmaratne, Yoshikazu Sakagami, et al. · Natural Product Research · 80
Comparison of tea quality parameters of conventionally and organically grown tea, and effects of fertilizer on tea quality: A mini-review
2023 · K.G. Nelum P. Piyasena, L.S.K. Hettiarachchi · Food Chemistry Advances · 45
Two phytotoxic azaphilone derivatives fromChaetomium globosum, a fungal endophyte isolated fromAmaranthus viridisleaves
2015 · K.G. Nelum P. Piyasena, W.A.R.T. Wickramarachchi, et al. · Mycology&#58 An International Journal on Fungal Biology · 38
Evaluation of inherent fructose, glucose and sucrose concentrations in tea leaves (Camellia sinensis L.) and in black tea
2022 · K.G. Nelum P． Piyasena, L.S.K. Hettiarachchi, et al. · Applied Food Research · 31
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A Geranylated biphenyl derivative from Garcinia mangostana
2004 · H.R.W. Dharmaratne, K.G.N.P. Piyasena, et al. · Natural Product Research · 28
Variation of elastase, collagenase, tyrosinase enzyme inhibitory and antioxidant potential of different tea cultivars
2024 · K. G. Nelum P. Piyasena, M. T. Napagoda, et al. · Discover Chemistry. · 21
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Variation of catechin and caffeine content in exotic collection of tea [Camellia sinensis (L.) O. Kuntze] in Sri Lanka and potential implication in breeding cultivars with enhanced quality and medicinal properties
2022 · Jeevan Dananjaya Kottawa-Arachchi, M.A.B. Ranatunga, et al. · Food Chemistry Advances · 21
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Chemical and biological characteristics of Sri Lankan white tea
2023 · K.G. Nelum P. Piyasena, A.A.B. Abayarathne, et al. · Food and Humanity · 17
Prediction of glucose and sucrose values of black tea samples using NIR spectroscopy and chemometrics
2023 · K.G. Nelum, P. Piyasena, et al. · Food and Humanity · 16
Identification of key flavor compounds and color substances in tea: a review
2025 · K. G. Nelum P. Piyasena, L. S. K. Hettiarachchi · Discover Food · 15
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Quantification of dynamic changes of sugars during the aeration/oxidation period of black tea processing: A Sri Lankan study
2023 · K.G. Nelum P. Piyasena, L.S.K. Hettiarachchi, et al. · Food and Humanity · 13
Evaluation of antioxidant, acetylcholinesterase, lipase, α-amylase, xanthine oxidase, and α-glucosidase enzyme inhibitory activities of Sri Lankan tea cultivars
2025 · K. G. Nelum P. Piyasena, M. A. B. Ranatunga, et al. · Discover Plants. · 9
Health benefits of different types of tea: a review
2026 · K. G. Nelum P. Piyasena, M. T. Napagoda, et al. · Food, Nutrition and Health. · 8
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Allelopathic activity studies ofMikania scandens
2012 · K.G. Nelum P. Piyasena, H. Ranjith W. Dharmaratne · Natural Product Research · 7
Evaluation of the anthocyanin content in Sri Lankan tea cultivars
2025 · Pradeepthi Basnayake, K. G. Nelum P. Piyasena, et al. · Discover Plants. · 4
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Monthly fluctuations in total polyphenol content of Sri Lankan tea cultivars in relation to climatic factors and drying techniques
2026 · K. G. Nelum P. Piyasena, Jayani Kalinga, et al. · Bulletin of the National Research Centre/Bulletin of the National Research Center · 1
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A Review Article on the Health Benefits of Black Tea and its Oxidized Compounds
2026 · K. G. Nelum P. Piyasena, Arjuna B. Medagama, et al. · Current Food Science and Technology Reports
Effects of Freeze Drying and Spray Drying Techniques on the Encapsulation of Black Tea Aroma Compounds
2026 · Irosha Hettiarachchi, G. A. A. R. Perera, et al. · Tropical Agricultural Research
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Optimisation of headspace solid-phase microextraction procedure for quantitative determination of volatile compounds in steam distillate of black tea using gas chromatography-flame ionisation detection
2026 · H. A. I. L. Hettiarachchi, G. A. A. R. Perera, et al. · Journal of Food Science and Technology
Endophytic Fungi from Tea Cultivars: Identification and In Vitro Antagonism Against Fusarium ambrosium, a Symbiont of Shot Hole Borer (Euwallacea fornicatus)
2026 · K. G. N. P. Piyasena, G. D. Sinniah, et al. · Advances in biological sciences research/Advances in Biological Sciences Research
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Phytotoxic naphtho-γ-pyrones from an endophytic fungus Aspergillus niger from Basella alba
2025 · K. G. N. P. Piyasena, W. A. R. T. Wickramarachchi, et al. · Vegetos
Chemical characteristics: tea flowers (Camellia sinensis) and black tea manufactured incorporating tea flowers
2025 · K. G. Nelum P. Piyasena, E. N. U. Edirisinghe, et al. · Vegetos
Potential of enhancing aroma profiles of different instant black tea products by incorporating encapsulated black tea aroma
2025 · H.A.I.L. Hettiarachchi, G.A.A.R. Perera, et al. · Journal of Food Science and Technology
Phytotoxicity studies of Canarium zeylanicum Blume on lettuce and radish
2024 · K.G. Nelum. P. Piyasena*, H.R.W. Dharmaratne · Allelopathy Journal
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Works count: 30
Citation count: 585
H-index: 12
I10-index: 12
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