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. 1982 Mar;43(3):708–714. doi: 10.1128/aem.43.3.708-714.1982

Geosmin and 2-Methylisoborneol from Cyanobacteria in Three Water Supply Systems

George Izaguirre 1, Cordelia J Hwang 1, Stuart W Krasner 1, Michael J McGuire 1
PMCID: PMC241898  PMID: 16345978

Abstract

Three Oscillatoria strains and one Anabaena species were isolated from three different water supply systems in California that experienced earthy-musty taste and odor problems in their drinking water. Unialgal cultures, free of actinomycetes, were purged using the Grob closed-loop stripping analysis method, and the resulting methylene chloride extracts were analyzed on a gas chromatograph/mass spectrometer. Geosmin was produced by Oscillatoria simplicissima and Anabaena scheremetievi, and 2-methylisoborneol was produced by O. curviceps and O. tenuis. These compounds are the two major causes of earthy-musty tastes and odors in water. In three instances, the major odorant found in culture was previously identified in the water or sediment sample from which the respective organism was isolated. O. curviceps was implicated in a taste and odor episode involving 2-methylisoborneol in a major reservoir. Geosmin and 2-methylisoborneol were easily detected with culture samples of only 4 to 25 ml.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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