Abstract
In this study, potential of biodegradation of musty odor producing Phormidium tenue by biofilm was examined. The biofilm was scraped from a honeycomb-like tube settled in the biological treatment facility of Kasumigaura Waterworks and P. tenue which produces 2-methylisoborneol (MIB) was isolated from Lake Kasumigaura. P. tenue of 80 mgl-1 and 103μgl-1 of the mllsty odor compound, MIB were degraded by the biofilm within 8 days. It was found that several protozoa such as Monas guttula, Holostica sp., Tetrahymena sp., and Stylonychia sp. in the biofilm actively predated on the P. tenue, subsequently the eluted MIB from the strains was perfectly assimilated by bacteria in the biofilm.
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