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dc.contributor.authorWijewickrama, Menuja M
dc.contributor.authorManage, Pathmalal M
dc.date.accessioned2019-12-12T00:01:00Z
dc.date.available2019-12-12T00:01:00Z
dc.date.issued2019
dc.identifier.issn2072-6651
dc.identifier.doi10.3390/toxins11080432
dc.identifier.urihttp://hdl.handle.net/10072/389692
dc.description.abstractThe potential transfer of microcystin-LR (MC-LR) to humans via crop plants irrigated with MC-contaminated water is causing serious concern. In this study, two Oryza sativa variants, a hybrid (BG358), a traditional (Suwandel) variety, and a leafy green vegetable crop, Ipomoea aquatica, were exposed under laboratory conditions to natural blooms of Microcystis aeruginosa sampled from a hypereutrophic lake contaminated with MC-LR (3,197.37 ± 1.04 µg/L). Field samples of O. sativa and I. aquatica were collected from farmlands that had been irrigated from a reservoir, containing MC-LR (180 µg/L). MC-LR was quantified by high performance liquid chromatography followed by photodiode-array detection (HPLC-PDA). From the laboratory study, we calculated the potential human health exposure from BG358, Suwandel and I. aquatica as 2.84 ± 0.01, 0.22 ± 0.01, and 0.06 ± 0.01 µg/kg of body weight/day, respectively, whereas the potential health exposures from BG358, Suwandel and I. aquatica collected from the field were 0.10 ± 0.01, 0.009 ± 0.005, and 0.03 ± 0.01 µg/kg of body weight/day, respectively. In certain instances, the results exceeded the World Health Organization’s (WHO) tolerable daily intake of MC-LR, posing a potential health risk to humans. Thus, our results emphasize the importance of continuous screening programs for cyanotoxins in edible plants in the future to prevent the consumption of contaminated crops.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherMultidisciplinary Digital Publishing Institute (MDPI)
dc.relation.ispartofissue8
dc.relation.ispartofjournalToxins
dc.relation.ispartofvolume11
dc.subject.fieldofresearchBiochemistry and Cell Biology
dc.subject.fieldofresearchPharmacology and Pharmaceutical Sciences
dc.subject.fieldofresearchcode0601
dc.subject.fieldofresearchcode1115
dc.subject.keywordsScience & Technology
dc.subject.keywordsLife Sciences & Biomedicine
dc.subject.keywordsFood Science & Technology
dc.subject.keywordsToxicology
dc.subject.keywordsmicrocystins
dc.titleAccumulation of Microcystin-LR in Grains of Two Rice Varieties (Oryza sativa L.) and a Leafy Vegetable, Ipomoea aquatica
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationWijewickrama, MM; Manage, PM, Accumulation of Microcystin-LR in Grains of Two Rice Varieties (Oryza sativa L.) and a Leafy Vegetable, Ipomoea aquatica, Toxins, 2019, 11 (8)
dcterms.dateAccepted2019-07-18
dcterms.licensehttps://creativecommons.org/licenses/by/4.0/
dc.date.updated2019-12-11T23:58:27Z
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
gro.hasfulltextFull Text
gro.griffith.authorWijewickrama, Gamage M.


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