Results 201 to 210 of about 7,356 (260)

Developmentally regulated volatiles geosmin and 2-methylisoborneol attract a soil arthropod to Streptomyces bacteria promoting spore dispersal

Nature Microbiology, 2020
Paul G Becher, Maureen J Bibb, Matthew J Bush   +2 more
exaly   +2 more sources

Carbon nanotube-coated Al2O3 materials for removing N-nitrosamines, 2-methylisoborneol and geosmin from water

Fullerenes, nanotubes, and carbon nanostructures, 2023
Concern over safe drinking water has increased. In this study, aluminum oxide was coated with carbon nanotubes by chemical vapor deposition using ethanol or methanol as precursors to remove N-nitrosamines, 2-methylisoborneol (MIB) and geosmin from water.
A. Salussoglia, Gabriel Matias Silva, G. G. C. Soares, Maria Eduarda de Lima, J. M. Rosolen, Luiz Alberto Beraldo de Moraes   +5 more
semanticscholar   +1 more source

Microbiological degradation of (-)-geosmin

Water Research, 1999
One of the musty odour components in drinking water, (-)-geosmin was microbiologically degraded with the backwash water collected from a biological filter pilot plant at Lake Biwa (Japan) and activated sludge obtained from Sendai City Sewerage Bureau; in this process the presence of ethanol was essential for acceleration of the reaction.
A Saito, T Tokuyama, A Tanaka, T Oritani, K Fuchigami   +4 more
openaire   +1 more source

Algaecide Controls Geosmin in Tulsa

Journal AWWA, 2022
Key TakeawaysFor years, geosmin was causing taste and odor (T&O) issues for the residents of Tulsa, Okla.With the application of algaecide at the pipe's intake, the median geosmin concentration was reduced by 83%.While utilities should focus on source water quality, the application of algaecide can help provide immediate relief for T&O issues ...
openaire   +1 more source

Geosmin Biosynthesis. Streptomyces coelicolor Germacradienol/Germacrene D Synthase Converts Farnesyl Diphosphate to Geosmin

Journal of the American Chemical Society, 2006
Geosmin is responsible for the characteristic odor of moist soil. Incubation of recombinant germacradienol synthase, encoded by the SCO6073 (SC9B1.20) gene of the Gram-positive soil bacterium Streptomyces coelicolor, with farnesyl diphosphate (2, FPP) in the presence of Mg2+ gave a mixture of (4S,7R)-germacra-1(10)E,5E-diene-11-ol (3) (74%), (-)-(7S ...
Jiaoyang, Jiang, Xiaofei, He, David E, Cane   +2 more
openaire   +2 more sources

Identification of geosmin biosynthetic gene in geosmin-producing colonial cyanobacteria Coelosphaerium sp. and isolation of geosmin non-producing Coelosphaerium sp. from brackish Lake Shinji in Japan

Harmful Algae, 2019
Geosmin is an earthy-muddy smelling compound produced in aquatic ecosystems by microorganisms including cyanobacteria. An increase in geosmin levels affecting the local fishery occurred in May 2007 in Lake Shinji, Japan, and geosmin-producing colonial cyanobacterium, Coelosphaerium sp.
Shohei, Hayashi, Shuji, Ohtani, Toshiyuki, Godo, Yukari, Nojiri, Yukiko, Saki, Toshiaki, Esumi, Hiroshi, Kamiya   +6 more
openaire   +6 more sources

Biotransformations of (+/−)-geosmin by terpene-degrading bacteria

Biodegradation, 2009
Two terpene-degrading bacteria able to transform (+/-)-geosmin have been identified. Pseudomonas sp. SBR3-tpnb, following growth on gamma-terpinene, converts (+/-)-geosmin to several products; the major products are ketogeosmins. Rhodococcus wratislaviensis DLC-cam, isolated on D-camphor, also converts (+/-)-geosmin to several oxidation products ...
Richard W, Eaton, Peter, Sandusky
openaire   +2 more sources

Enhancing the biofiltration of geosmin by seeding sand filter columns with a consortium of geosmin-degrading bacteria

Water Research, 2009
Geosmin is a secondary metabolite that can be produced by many species of cyanobacteria and Actinomycetes. It imparts a musty/earthy taste and odour to drinking water which can result in consumer complaints and a general perception that there is a problem with the water quality.
McDowall, B., Hoefel, D., Newcombe, G., Saint, C., Ho, L.   +4 more
openaire   +4 more sources

Stereodifferentiation of geosmin in wine

European Food Research and Technology, 2001
Geosmin (trans-1,10-dimethyl-trans-9-decalol), a well-known, highly odorous compound, has recently been identified and quantified in red and sweet white wines, as well as in grape juice before alcoholic fermentation. Geosmin is a chiral compound and the (–) form is much more odoriferous than the (+) form.
Darriet, P., Lamy, S., La Guerche, S., Pons, M., Dubourdieu, Denis, Blancard, Dominique, Steliopoulos, P., Mosandl, A.   +7 more
openaire   +2 more sources

Reservoir Circulation Reduces Geosmin Production

Opflow, 2008
This article discusses an effort at Wake Forest Reservoir, North Carolina, to mitigate taste and odor issues caused by microorganisms. A new approach was used that consisted of releasing compressed air into the bottom of the reservoir through an air‐diffuser array. To study the link between water chemistry, stratification, and taste and odor production,
George Pesacreta, Ellen Braun‐Howland, Ann St. Amand   +2 more
openaire   +1 more source