Výsledky vyhledávání - "P. A. N. Punyasiri"

Profiling of amino acids in traditional and improved rice (Oryza sativa L.) varieties of Sri Lanka and their health promoting aspects

Autor: J. D. Kottawa-Arachchi, G.V.V. Liyanaarachchi, Krr Mahanama, H.P.P.S. Somasiri, P. A. N. Punyasiri, K. A. K. Wijesena

Publikováno v: Cereal Research Communications. 49:441-448

Investigation made on the variation in amino acid compositions among selected traditional and newly improved rice varieties cultivated in Sri Lanka is presented. The free amino acid (FAA) composition including gamma-amino butyric acid (GABA) and prot

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2d5845f9846300c50f46ef8e4e3deea5
https://doi.org/10.1007/s42976-020-00125-x

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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

Autor: P. A. N. Punyasiri, K.R.R. Mahanama, G.V.V. Liyanaarachchi, H.P.P.S. Somasiri

Publikováno v: Food Chemistry. 240:196-203

The study presents the validation results of the method carried out for analysis of free amino acids (FAAs) in rice using l-theanine as the internal standard (IS) with o-phthalaldehyde (OPA) reagent using high-performance liquid chromatography-fluore

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e37153c4344e3c746597bf0e27a4c098
https://doi.org/10.1016/j.foodchem.2017.07.038

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Total and free amino acid contents of popular rice varieties (Oryza sativa L.) consumed in the capital city of Sri Lanka

Autor: Krr Mahanama, P. A. N. Punyasiri, Gvv Liyanaarachchi, Hpps Somasiri, J. D. Kottawa-Arachchi

Publikováno v: Journal of the National Science Foundation of Sri Lanka. 48:199

This study investigated the amino acid composition of eight local and three imported rice varieties frequently consumed by consumers in the capital of Sri Lanka. Investigation included twenty free amino acids (FAAs) analysed using liquid chromatograp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::108f549b6b22a5de937769e11078a78a
https://doi.org/10.4038/jnsfsr.v48i2.9565

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Development and validation of a method for direct, underivatized analysis of free amino acids in rice using liquid chromatography-tandem mass spectrometry

Autor: K.R.R. Mahanama, P. A. N. Punyasiri, H.P.P.S. Somasiri, G.V.V. Liyanaarachchi

Publikováno v: Journal of chromatography. A. 1568

Inspired by the apparent relationship of free amino acids (FAAs) which are present in minute quantities with the organoleptic characteristics of food, there is an increased demand for analytical methods sensitive in trace level detection. This study

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47fb7a2edacff305294aad47acff8955
https://pubmed.ncbi.nlm.nih.gov/30017222

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Use of biochemical compounds in tea germplasm characterization and its implications in tea breeding in Sri Lanka

Autor: P. A. N. Punyasiri, M. T. K. Gunasekare, L. Jayasinghe, Mab Ranatunga, J. D. Kottawa-Arachchi

Publikováno v: Journal of the National Science Foundation of Sri Lanka. 41:309

Thirty five tea germplasm accessions selected to represent the germpalsm collection of Sri Lanka was used for biochemical characterization based on the biochemical compounds present in the fresh tea leaf. Rate of fermentation, crude fibre content, to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ae28c59316f7217ccf2ba83a0bbe4241
https://doi.org/10.4038/jnsfsr.v41i4.6252

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