Results 1 to 10 of about 3,068 (170)

Geosmin suppresses defensive behaviour and elicits unusual neural responses in honey bees

Scientific Reports, 2023
Geosmin is an odorant produced by bacteria in moist soil. It has been found to be extraordinarily relevant to some insects, but the reasons for this are not yet fully understood. Here we report the first tests of the effect of geosmin on honey bees.
Florencia Scarano, Mukilan Deivarajan Suresh, Ettore Tiraboschi, Amélie Cabirol, Morgane Nouvian, Thomas Nowotny, Albrecht Haase   +6 more
doaj   +3 more sources

Insights into the Seasonal Olfactory Mechanism of Geosmin in Raw Water of Huangpu River

Toxics, 2022
Since the 1990s, the raw water of Huangpu River in Shanghai, China, has intermittently encountered off-flavor contamination. In this work, the concentrations of typical odor, geosmin, in raw water of Huangpu River are found to shift along with the ...
Fei Luo, Hui Chen, Xiaoxin Wu, Lili Liu, Yuean Chen, Zhiping Wang   +5 more
doaj   +2 more sources

New strategies for mitigating undesirable odors connected to geosmin and 2-MIB in minced fish muscle: a model system approach [PDF]

Scientific Reports
Freshwater fish species commonly suffer from muddy odor problems linked to geosmin and 2-methylisoborneol (2-MIB). This study examined whether the release of geosmin and 2-MIB from spiked fish muscle could be reduced by adding poly-/oligosaccharides ...
Hatairad Phetsang, Manat Chaijan, Worawan Panpipat, Ingrid Undeland   +3 more
doaj   +2 more sources

Responses of Glossina pallidipes tsetse fly to geosmin, 2-pentanol and carbon dioxide odour cuesResponses of Glossina pallidipes tsetse fly to geosmin, 2-pentanol and carbon dioxide odour cues [PDF]

Royal Society Open Science
Tsetse flies exhibit varying host preferences when seeking blood meals. Volatile organic compounds from preferred hosts such as buffalo and cattle have been used to develop the 3-n-propylphenol, 1-octen-3-ol, p-cresol and acetone (POCA) attractant blend,
Benson Wachira, Robert Opiro, Paul Mireji   +2 more
doaj   +2 more sources

Geosmin Events Associated with Dolichospermum circinale Abundance Promoted by Nitrogen Supply in a Chinese Large Tropical Eutrophic Reservoir [PDF]

Microorganisms
Taste and odor (T/O) compounds are a global threat in drinking water, mainly produced by cyanobacteria in freshwater environments. Temperature plays a crucial role in regulating geosmin dynamics in temperate and subtropical lakes, while its influence may
Li-Juan Xiao, Yanru Jiang, Zihan Chen, Liang Peng, Yali Tang, Lamei Lei   +5 more
doaj   +2 more sources

Portable geosmin detection system based on sensor cells expressing insect odorant receptors [PDF]

Scientific Reports
A technology that enables highly sensitive, selective on-site detection of odorants without sophisticated equipment could be valuable for a range of applications, from water quality testing to disease diagnosis.
Hidefumi Mitsuno, Shogo Araki, Yuji Sukekawa, Daigo Terutsuki, Sawako Niki, Eri Kuroda, Shunsuke Fujibayashi, Takeshi Sakurai, Kumiko Oguma, Satoshi Yamaguchi, Shinya Yamahira, Teruyuki Nagamune, Ryohei Kanzaki   +12 more
doaj   +2 more sources

Determination of Geosmin and 2-Methylisoborneol and Associated Microbial Composition in Rainbow Trout Aquaculture Systems for Human Consumption [PDF]

Foods
This study investigated the seasonal and spatial dynamics of off-flavour compounds—geosmin and 2-methylisoborneol (2-MIB)—in an intensive rainbow trout (Oncorhynchus mykiss) aquaculture system for human consumption in western Spain. Weekly water and fish
Juan José Córdoba-Granados, Almudena V. Merchán, Carlos Moraga, Paula Tejero, Alberto Martín, María José Benito   +5 more
doaj   +2 more sources

Myxobacteria isolated from recirculating aquaculture systems (RAS): ecology and significance as off-flavor producers [PDF]

Applied and Environmental Microbiology
Despite advances in the operation of recirculating aquaculture systems (RAS), accumulation of earthy-muddy off-flavors in the fish remains a potential risk.
Julia Södergren, Pedro Martínez Noguera, Mikael Agerlin Petersen, Niels O. G. Jørgensen, Raju Podduturi, Mette H. Nicolaisen   +5 more
doaj   +2 more sources

Type-specific molecular signaling architectures and synaptic plasticity of Drosophila olfactory sensory neurons [PDF]

Frontiers in Cellular Neuroscience
Olfactory sensory neurons (OSNs) detect odours at a wide range of intensities. In Drosophila, volatile compounds bind to specific odorant receptors (ORs), which tune the sensitivity of chemoreception.
Namrata Acharya, Eric Wiesel, Mareike Selcho, Nadine Ehmann, Marius Lamberty, Bill S. Hansson, Dieter Wicher, Robert J. Kittel   +7 more
doaj   +2 more sources

Geosmin reduction by algaecide application to drinking water: field scale efficacy and mechanistic insights

Heliyon, 2021
Ten years of field data from an Oklahoma drinking water utility were analyzed for the effects of an acid-stabilized, ionic copper algaecide/bactericide called EarthTec on geosmin concentrations in the water traveling by pipeline from the source lake to a
David Hammond, Anthony Murri, Sergey Mastitsky, Ziming Yang, Roy Foster, Linda Schweitzer   +5 more
doaj   +1 more source