Results 211 to 220 of about 7,356 (260)
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A Novel Type of Geosmin Biosynthesis in Myxobacteria
The Journal of Organic Chemistry, 2005The biosynthesis of geosmin (1) and (1(10)E,5E)-germacradien-11-ol (2), two volatile terpenoid compounds emitted by the myxobacteria Myxococcus xanthus and Stigmatella aurantiaca, was investigated in feeding experiments with different labeled precursors.
Dickschat, J. +4 more
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Adsorption kinetics of MIB and geosmin
Journal AWWA, 1996Well‐established and alternative modeling approaches involving the homogeneous surface diffusion model were used to investigate several parameters.The kinetics of 2‐methylisoborneol (MIB) and geosmin are examined using laboratory and field data and through model simulations using the homogeneous surface diffusion model (HSDM).
Chih Huang +2 more
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Compost Stability Assessment Using a Secondary Metabolite: Geosmin
Environmental Technology, 2004Composting is a process involved not only in transformation of organic matter (OM), but also for transition of the microbial community. Microorganisms can directly provide important information on the stages and characteristics of composting. This paper was aimed at characterizing compost stability by a microbial secondary metabolite, geosmin, which is
H F, Li +4 more
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Screening and Training Analysts to Detect Geosmin
Opflow, 2022The San Francisco Public Utilities Commission needed a simple yet effective method for screening and training sensory analysts to detect geosmin in drinking water. The result was a modified version of the agency's triangle test, using sets of 40‐mL vials for each participant.
Ayman Shawwa +4 more
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1988
Publisher Summary This chapter describes the open-loop stripping system (OLSA) method for the determination of geosmin in cyanobacterial cultures. Geosmin (trans-l,l0-dimethyl-trans-2-decalol) is an earthy smelling substance produced by actinomycetes and cyanobacteria.
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Publisher Summary This chapter describes the open-loop stripping system (OLSA) method for the determination of geosmin in cyanobacterial cultures. Geosmin (trans-l,l0-dimethyl-trans-2-decalol) is an earthy smelling substance produced by actinomycetes and cyanobacteria.
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Biodegradation of MIB and geosmin with slow sand filters
Journal of Environmental Science and Health, Part A, 2010This study evaluated the biodegradation of MIB (2-methylisoborneol) and geosmin (trans-1,10-dimethyl-trans- 9-decalol) in simulated slow sand filtration (SSF) columns and in batch reactors. The results showed that both MIB and geosmin were biodegradable in the two systems. In batch experiments, the overall removals for MIB and geosmin were 50% and 78%,
Shu-Ting, Hsieh +2 more
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ozone/biofiltration for removing MIB AND GEOSMIN
Journal AWWA, 2000A serious and increasingly frequent problem that water utilities face is the occurrence of tastes and odors in drinking water. One of the most common and problematic types of tastes and odors is the musty/earthy type caused by 2‐methylisoborneol (MIB) and trans‐1,10‐dimethyl‐trans‐9‐decalol (geosmin).
Robert Nerenberg +2 more
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Geosmin production in the cyanobacterium Oscillatoria brevis
Archives of Microbiology, 1989The cyanobacterium Oscillatoria brevis (Kutz.) Gom., strain NIVA CYA 7, was used to investigate how geosmin production is related to the synthesis of chlorophyll a, phycobiliproteins and β-carotene under nitrogen (NH 4 + ) and light limiting conditions.
Helga Naes, H. C. Utkilen, A. F. Post
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Synthesis of deuterium labelled geosmin and methylisoborneol
Journal of Labelled Compounds and Radiopharmaceuticals, 1991AbstractGeosmin and methylisoborneol have been synthesised with a fully deuterated methyl group for use as internal standards in water analysis.
Wolfgang Korth +2 more
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