Identification of a woody-hay odor-causing compound in a drinking water supply

β-Cyclocitral and geosmin have been identified as the chemicals responsible for causing hay/woody and earthy odors in Lake Winnebago, respectively. Initial identifications of off-flavors were made by the GC-MS with an MS spectral library and sensory-GC analysis and the identifications were confirmed...

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Published inWater Science & Technology Vol. 40; no. 6; pp. 273 - 278
Main Authors YOUNG, C. C, SUFFET, I. H, CROZES, G, BRUCHET, A
Format Conference Proceeding Journal Article
LanguageEnglish
Published Oxford Pergamon Press 1999
IWA Publishing
Subjects
Applied sciences
Drinking water
Drinking water and swimming-pool water. Desalination
Exact sciences and technology
Flavors
Geosmin
Hay
Lakes
Libraries
Odor
Odors
Odour
Pollution
Retention time
Sensory evaluation
Tobacco
USA, Wisconsin, Winnebago L
Water supply
Water treatment and pollution
USA
Drinking water
Chemical analysis
Organoleptic properties
Surface water
Water pollution
Odor
Organic compounds
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Summary:β-Cyclocitral and geosmin have been identified as the chemicals responsible for causing hay/woody and earthy odors in Lake Winnebago, respectively. Initial identifications of off-flavors were made by the GC-MS with an MS spectral library and sensory-GC analysis and the identifications were confirmed by GC retention time and MS spectral matches to the known standard compounds. A Weber-Fechner plot has been developed for β-cyclocitral and its three odor descriptors, fresh grass, hay/woody, and tobacco-like, which were observed at different concentration ranges.
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ISBN:9780080436647
0080436641
ISSN:0273-1223
1996-9732
DOI:10.1016/S0273-1223(99)00568-5