Results 61 to 70 of about 7,356 (260)

Management of Biesboch reservoirs for quality control with special reference to eutrophication [PDF]

open access: yes, 1992
The three Biesbosch Reservoirs are pumped storage reservoirs, fed with rather polluted and highly eutrophic water from the River Meuse. Air injection at the bottom of the reservoirs prevents thermal stratification, which would otherwise result in serious
Oskam, G., van Breemen, L.
core  

Endogenous Production of Geosmin in Table Beet [PDF]

open access: yesHortScience, 2018
The earthy flavor of table beet is due to an aromatic terpene derivative called geosmin. It has been hypothesized that geosmin presence in beet is due to geosmin-producing bacteria such as Streptomyces spp. that exist in the soil. However, recent findings suggest that beet may produce geosmin endogenously without microbial influence.
Lynn Maher, Irwin L. Goldman
openaire   +1 more source

Molecular bases of insect odorant receptor function: specificity and evolution

open access: yesBiological Reviews, EarlyView.
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

A terpene cyclase from Aspergillus ustus is involved in the biosynthesis of geosmin precursor germacradienol

open access: yesRSC Advances, 2022
The earthy odor of geosmin with a C12 skeleton is known from bacteria, fungi and plants. The sesquiterpenoid germacradien-11-ol (germacradienol) is a crucial intermediate in the biosynthesis of geosmin.
Marlies Peter   +2 more
semanticscholar   +1 more source

Geosmin depuration from fish

open access: yes, 2020
Off-flavour described as ‘earthy-musty’ is commonly reported in fish raised in land-based aquaculture systems. Bioconcentration in fish of lipophilic geosmin produced by microbiota is regarded as the most important cause for this off-flavour. Despite that off-flavour in fish is an extensively studied and well documented problem, satisfactory solutions ...
openaire   +3 more sources

Strong Implications From Small Deviations in Labeling Patterns: The Mechanism of Burkholderia gladioli Pacifigorgiadiene Synthase

open access: yesChemistry – A European Journal, EarlyView.
The mechanism of pacifigorgiadiene synthase from Burkholderia gladioli was investigated through isotopic labeling experiments and DFT calculations. The results revealed an unexpected labeling pattern which appeared to be different in the main and the side products, requiring unprecedented mechanistic explanations, including a “break‐flip‐cyclise ...
Zhiyong Yin   +6 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

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

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

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  

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