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dc.contributor.authorSupannee Suwanpakdeeen_US
dc.contributor.authorRedel Gutierrezen_US
dc.contributor.authorSantiwat Pithakpolen_US
dc.contributor.authorArunothai Jampeetongen_US
dc.contributor.authorWasu Pathom-areeen_US
dc.contributor.authorNakao Nomuraen_US
dc.contributor.authorTomoaki Itayamaen_US
dc.contributor.authorNiwooti Whangchaien_US
dc.identifier.citationChiang Mai Journal of Science 43, 1 (Jan 2016), 22 - 31en_US
dc.description.abstractThis study aimed to determine and monitor the levels of earthy-musty odour in Phayao Lake water and the microbiota responsible for the production of odorous compounds, geosmin and 2-methylisoboneol. Geosmin was identified as the main odorous substance in both water and lake sediments. It was significantly related (P<0.05) to the density of cyanobacteria in lake water. Five genera of cyanobacteria were identified as the most frequently encountered groups, namely: Microcystis sp., Lyngbya sp., Phormidium sp., Anabaena sp. and Oscillatoria sp. Furthermore, three cyanobacterial genera, were found to be the most dominant and are well known producers of odorous compounds. Geosmin levels were significantly but weakly correlated (r=0.36; P<0.05) to actinomycetes count. Streptomyces spp. were found to be significantly present in the sediment. Analytical results by GC/MS showed that the majority (63%) of Streptomyces spp. isolated from the sediments were geosmin-producers. Consequently, it was suggested that filamentous cyanobacteria, rather than actinomycetes, were the major contributor of earthy-musty odour in Phayao Lake.en_US
dc.publisherScience Faculty of Chiang Mai Universityen_US
dc.subjectPhayao Lakeen_US
dc.subjectmusty odouren_US
dc.titleEarthy-musty Odour and Off-flavour Taints in Phayao Lake, Thailanden_US
Appears in Collections:CMUL: Journal Articles

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