Results 11 to 20 of about 3,068 (170)

Fast and Sensitive Measurement of Off-Flavors in Recirculating Aquaculture Systems. [PDF]

open access: yesRapid Commun Mass Spectrom
ABSTRACT Rationale Geosmin and 2‐methylisoborneol (2‐MIB) are odor‐active compounds responsible for earthy off‐flavors in fish, creating significant quality concerns in recirculating aquaculture systems (RAS). Their extremely low odor thresholds make rapid and highly sensitive detection essential for maintaining product quality and consumer acceptance ...
Noguera PM   +5 more
europepmc   +2 more sources

Beta vulgaris ssp. vulgaris chromosome 8 shows significant association with geosmin concentration in table beet

open access: yesG3: Genes, Genomes, Genetics, 2021
Geosmin, a degraded sesquiterpene molecule with earthy and musty odor, imbues table beet with its characteristic aroma. Geosmin is heritable and endogenously produced in table beet; its earthy aroma is sought by some consumers but deters others.
Solveig J Hanson   +2 more
doaj   +1 more source

Levels of Two Earthy and Musty Odor Compounds, 2-Methylisoborneol and Geosmin, in Wastewater and Concentration Variations during Treatment

open access: yesJournal of Water and Environment Technology, 2023
We determined the concentrations of 2-methylisoborneol (2-MIB) and geosmin in final effluent from wastewater treatment plants in Kyoto City, Japan, investigating variations during treatment.
Ko Hosoda   +6 more
doaj   +1 more source

qPCR-Based Monitoring of 2-Methylisoborneol/Geosmin-Producing Cyanobacteria in Drinking Water Reservoirs in South Korea

open access: yesMicroorganisms, 2023
Cyanobacteria can exist in water resources and produce odorants. 2-Methylisoborneol (2-MIB) and geosmin are the main odorant compounds affecting the drinking water quality in reservoirs.
Jung Eun Lee   +4 more
doaj   +1 more source

Biosynthesis of the Fully Saturated C<sub>16</sub> Homosesquiterpene Descartane Through Deprotonation With Cyclopropanation. [PDF]

open access: yesAngew Chem Int Ed Engl
A non‐canonical C16 sesquiterpene synthase from Morganella morganii produces the unusual scaffold descartane. Its cyclisation mechanism was rationalised by isotopic labelling experiments and DFT calculations. Site‐directed mutagenesis altered enzyme function, resulting in alternative products, including voltairene, which requires a different ...
Yang K   +4 more
europepmc   +2 more sources

Producers and drivers of odor compounds in a large drinking-water source

open access: yesFrontiers in Ecology and Evolution, 2023
IntroductionTaste and odor (T&O) problems have been affecting drinking water safety. As a eutrophicated drinking water reservoir in Tianjin city, the Yuqiao Reservoir was threatened by 2-MIB and geosmin in recent years.MethodsIn this study, quantile ...
Pengfei Qiu   +8 more
doaj   +1 more source

Dryland Soil Rewetting Induces Strong Volatile Organic Compound Emissions With Potential to Form Ozone and Aerosols [PDF]

open access: yesGlobal change biology.
Rainfall after drought triggers strong petrichor VOC emissions from dryland soils. These emissions are chemically diverse, shaped by aridity and soil microbial community, and can increase regional ozone and secondary organic aerosol formation potentials.
Ghirardo A   +8 more
europepmc   +2 more sources

The Chemical Ecology of Geosmin [PDF]

open access: yes, 2021
Known as the smell of earth after rain, geosmin is an odorous terpene detectable by humans at picomolar concentrations. Geosmin production is heavily conserved in actinobacteria, myxobacteria, cyanobacteria, some fungi and red beets (Beta vulgaris L ...
Zaroubi, Liana
core   +1 more source

Construction and application of the genome-scale metabolic model of Streptomyces radiopugnans

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
Geosmin is one of the most common earthy-musty odor compounds, which is mainly produced by Streptomyces. Streptomyces radiopugnans was screened in radiation-polluted soil, which has the potential to overproduce geosmin.
Zhidong Zhang   +6 more
doaj   +1 more source

Geosmin (Taste & Odor) Prediction Study

open access: yes, 2023
Geosmin is an unpleasant taste and odor compound naturally occuring in some water bodies that requires treatment. It produces a musty, earthy smell and taste in drinking water; however, it is not harmful at levels present in drinking water.
Hering, Amanda S.   +2 more
core   +1 more source

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