Results 51 to 60 of about 5,637 (223)

Enzymatic Synthesis of Demethylated Sesquiterpenes From 14‐nor‐Farnesyl Pyrophosphate

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
The substrate analog 14‐nor‐FPP was synthesised and enzymatically converted with 10 bacterial and fungal sesquiterpene synthases, resulting in the isolation of 12 demethylated sesquiterpenes in yields up to 17%. In most cases the demethyl analogs of the FPP‐derived natural products were obtained, but also different products showing modified ...
Kizerbo A. Taizoumbe   +1 more
wiley   +1 more source

Comprehensive mRNA and microRNA analysis revealed the effect and response strategy of freshwater fish, grass carp (Ctenopharyngodon idella) under geosmin exposure

open access: yesEcotoxicology and Environmental Safety
Geosmin is an environmental pollutant that causes off-flavor in water and aquatic products. The high occurrence of geosmin contamination in aquatic systems and aquaculture raises public awareness, however, few studies have investigated the response ...
Jun-ming Zhang   +9 more
doaj   +1 more source

HS-SPME-GC/MS Method for the Simultaneous Determination of Trihalomethanes, Geosmin, and 2-Methylisoborneol in Water Samples

open access: yesChemosensors, 2023
Drinking water treatment plants (DWTP) use chlorination as an oxidation stage in the first step of the processes used to eliminate the natural organic matter (NOM) responsible for the formation of 2-methylisoborneol (2-MIB) and Geosmin (GM), which ...
Diego Pardina   +9 more
doaj   +1 more source

Why do food and drink smell like earth? [PDF]

open access: yes, 2007
Fungi have long been associated with earthy odours. One of the main contributors to this odour is geosmin, a sesquiterpenoid metabolite produced by soil living fungi. Some food commodities are liable to contamination by geosmin producing fungi.
Lima, Nelson   +2 more
core  

Photocatalytic Destruction of Geosmin Using Novel Pelleted Titanium Dioxide [PDF]

open access: yesJournal of Advanced Oxidation Technologies, 2008
AbstractGeosmin is produced by cyanobacteria and actinomycetes in surface waters. It causes undesirable earthy off-flavours in freshwater fish and is a major concern for the drinking water industry.
Bellu, Edmund   +2 more
openaire   +2 more sources

Molecular bases of insect odorant receptor function: specificity and evolution

open access: yesBiological Reviews, Volume 101, Issue 2, Page 1036-1049, April 2026.
ABSTRACT Insect odorant receptors (ORs) are a class of chemoreceptors that insects use to detect volatile cues in their environment. In recent years, major advances in the field of structural biology have made it possible to obtain the first structures of insect ORs.
Zibo Li   +5 more
wiley   +1 more source

Influence of phytoplankton on the water quality of surface water sources and drinking water

open access: yesRUDN Journal of Ecology and Life Safety, 2023
The problem of the appearance of odors in drinking water associated with the development of algae and cyanobacteria in reservoirs of drinking water sources is considered.
Elena V. Kalinina, Larisa V. Rudakova
doaj   +1 more source

Tastes and odours in potable water:perception versus reality [PDF]

open access: yes, 1997
Tastes and odours are amongst the few water quality standards immediately apparent to a consumer and, as a result, account for most consumer complaints about water quality.
Kelly, M.G., Pomfret, J.R.
core  

Utilizing a consumer taste panel to assess the geosmin sensory detection threshold in market‐size Atlantic salmon, Salmo salar, produced in land‐based aquaculture systems

open access: yesJournal of the World Aquaculture Society, Volume 57, Issue 2, April 2026.
Abstract Microbially derived geosmin causes an earthy off‐flavor in Atlantic salmon, Salmo salar, produced in land‐based systems, placing these products at risk for rejection. Therefore, a study was conducted to investigate the geosmin sensory threshold in market‐size Atlantic salmon.
John Davidson   +4 more
wiley   +1 more source

Potentiometric E-Tongue System for Geosmin/Isoborneol Presence Monitoring in Drinkable Water

open access: yesSensors, 2020
A potentiometric E-tongue system based on low-selective polymeric membrane and chalcogenide-glass electrodes is employed to monitor the taste-and-odor-causing pollutants, geosmin (GE) and 2-methyl-isoborneol (MIB), in drinkable water.
Larisa Lvova   +7 more
doaj   +1 more source

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