Results 21 to 30 of about 5,637 (223)

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

Journal 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, Yasutaka Yasui, Mitsuharu Nishikawa, Kento Iwatani, Tomoyuki Ohara, Syunichiro Fujiwara, Toshiharu Segawa   +6 more
doaj   +1 more source

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

Frontiers 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, Zhidong Zhang, Qi Guo, Jinyi Qian, Chao Ye, He Huang, He Huang   +6 more
doaj   +1 more source

Geosmin Biosynthesis in Streptomyces avermitilis. Molecular Cloning, Expression, and Mechanistic Study of the Germacradienol/Geosmin Synthase [PDF]

The Journal of Antibiotics, 2006
Geosmin (1) is responsible for the characteristic odor of moist soil. The Gram-positive soil bacterium Streptomyces avermitilis produces geosmin (1) as well as its precursor germacradienol (3). The S. avermitilis gene SAV2163 (geoA) is extremely similar to the S. coelicolor A3(2) SCO6073 gene that encodes a germacradienol/geosmin synthase.
David E, Cane, Xiaofei, He, Seiji, Kobayashi, Satoshi, Omura, Haruo, Ikeda   +4 more
openaire   +2 more sources

Impact of water quality parameters on geosmin levels and geosmin producers in European recirculating aquaculture systems

Journal of Applied Microbiology, 2022
Abstract Aims Geosmin is associated with off-flavour problems in recirculating aquaculture systems (RAS) and represents an economic problem for the aquaculture industry. This study aims at investigating factors influencing the composition of the bacterial microbiota, in particular the presence of ...
Mie Bech Lukassen, Simon Menanteau-Ledouble, Nadieh de Jonge, Edward Schram, Jeppe Lund Nielsen   +4 more
openaire   +2 more sources

Biocontrol of Geosmin Production by Inoculation of Native Microbiota during the Daqu-Making Process

Fermentation, 2022
Geosmin produced by Streptomyces can cause an earthy off-flavor at trace levels, seriously deteriorating the quality of Chinese liquor. Geosmin was detected during the Daqu (Chinese liquor fermentation starter)-making process, which is a multi-species ...
Hai Du, Junlin Wei, Xitong Zhang, Yan Xu
doaj   +1 more source

Water Flow and Light Availability Influence on Intracellular Geosmin Production in River Biofilms

Frontiers in Microbiology, 2020
Hydro-morphological alterations in water bodies caused by climate change and human activities affects the ecosystem functioning and generate important water quality problems.
Carmen Espinosa, Carmen Espinosa, Meritxell Abril, Helena Guasch, Helena Guasch, Núria Pou, Lorenzo Proia, Marta Ricart, Marc Ordeix, Laia Llenas   +9 more
doaj   +1 more source

Driving Factors of Geosmin Appearance in a Mediterranean River Basin: The Ter River Case

Frontiers in Microbiology, 2021
In recent decades, human activity coupled with climate change has led to a deterioration in the quality of surface freshwater. This has been related to an increase in the appearance of algal blooms, which can produce organic compounds that can be toxic ...
Carmen Espinosa, Carmen Espinosa, Meritxell Abril, Èlia Bretxa, Marta Jutglar, Sergio Ponsá, Núria Sellarès, Lídia Vendrell-Puigmitjà, Laia Llenas, Marc Ordeix, Lorenzo Proia   +10 more
doaj   +1 more source

Investigation of diverse biosynthetic secondary metabolites gene clusters using genome mining of indigenous Streptomyces strains isolated from saline soils in Iran

Iranian Journal of Microbiology, 2022
Background and Objectives: Bioactive secondary metabolites are the products of microbial communities adapting to environmental challenges, which have yet remained anonymous. As a result of demands in the pharmaceutical, agricultural, and food industries,
Amin Khoshakhlagh, Seyed Soheil Aghaei, Saeid Abroun, Mohammad Soleimani, Mohammad Reza Zolfaghari   +4 more
doaj   +1 more source

Geosmin Attracts Aedes aegypti Mosquitoes to Oviposition Sites [PDF]

Current Biology, 2020
Geosmin is one of the most recognizable and common microbial smells on the planet. Some insects, like mosquitoes, require microbial-rich environments for their progeny, whereas for other insects such microbes may prove dangerous. In the vinegar fly Drosophila melanogaster, geosmin is decoded in a remarkably precise fashion and induces aversion ...
Melo, Nadia, Wolff, Gabriella, Luis Costa-Da-Silva, Andre, Arribas, Robert, Fernandez Triana, Merybeth, Gugger, Muriel, Riffell, Jeffrey, Degennaro, Matthew, Stensmyr, Marcus   +8 more
openaire   +3 more sources

Microbial Production of the Off-Flavor Geosmin in Tilapia Production in Brazilian Water Reservoirs: Importance of Bacteria in the Intestine and Other Fish-Associated Environments

Frontiers in Microbiology, 2019
AimTo determine major sources of microbially produced geosmin in the commercially important aquaculture fish species tilapia.Methods and ResultsAbundance and composition of geosmin-producing bacteria in water and fish biosphere (intestine, digesta, and ...
Mie B. Lukassen, Nadieh de Jonge, Sabine M. Bjerregaard, Raju Podduturi, Niels O. G. Jørgensen, Mikael A. Petersen, Gianmarco S. David, Reinaldo J. da Silva, Jeppe L. Nielsen   +8 more
doaj   +1 more source