The identification of odorous metabolites produced from algal monocultures

Cotsaris, E.; Bruchet, A.; Mallevialle, J.; Bursill, D.

doi:10.1016/0273-1223(95)00484-5

Cited by 31 publications

(6 citation statements)

References 19 publications

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“…Howgate (2004) and Guttmana and van Rijn (2008) both found that Cyanobacteria produce MIB and geosmin. Brown and Boyd (1982) also reported that other algae might be responsible for the severe off-flavor in ponds, which was confirmed by other studies Liu et al 2005;Cotsari et al 1995). Cotsari et al (1995) pointed out that Scenedesmus subspicutus could also be responsible for the off-flavor.…”

Section: Genesis Of Geosmin and Mibmentioning

confidence: 52%

“…Brown and Boyd (1982) also reported that other algae might be responsible for the severe off-flavor in ponds, which was confirmed by other studies Liu et al 2005;Cotsari et al 1995). Cotsari et al (1995) pointed out that Scenedesmus subspicutus could also be responsible for the off-flavor. However, problems of off-flavor fish may be related to some specific phytoplankton species.…”

Section: Genesis Of Geosmin and Mibmentioning

confidence: 52%

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Relationship between concentrations of odorous compounds and biomass of phytoplankton and actinomycetes in freshwater ponds of Beijing, China

Xiong

Pan

et al. 2009

Aquacult Int

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The odorous compounds including geosmin and 2-methylisoborneol (MIB) were detected in intensively cultivated freshwater ponds in Beijing, China, by coupling head space solid-phase microextraction with gas chromatography mass spectrometry (GC-MS). Moreover, the biomass of phytoplankton and actinomycetes in the fishponds were determined simultaneously, and the relationship between the concentrations of these odorous compounds and the biomass of phytoplankton and actinomycetes was assessed. The results showed that among the odorous compounds detected, geosmin was the main one, and concentrations of 1.22-35.58 ng l -1 were found in all fishponds. Besides, MIB with 1.39-6.00 ng l -1 was found in parts of fishponds. Six phyla and 22 genera of algae were observed in the fishponds with a biomass of 17.33-178.34 mg l -1 , among which dominant phyla were Bacillariophyta and Euglenophyta. Four genera of actinomycetes with a gross biomass of 0-76 9 10 4 ind l -1 were found in the fishponds, of which Streptomyces spp. was the dominant genera. This indicated that geosmin concentration in fishponds was related with the total biomass of the dominant algae. The results showed that Melosira spp. and Cyclotella spp. were the main microalgae to cause off-flavor in Beijing's intensively cultivated freshwater ponds in summer and autumn, while Euglenophyta and other algaes played a small role in causing off-flavor.

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Section: Genesis Of Geosmin and Mibmentioning

confidence: 52%

Section: Genesis Of Geosmin and Mibmentioning

confidence: 52%

Relationship between concentrations of odorous compounds and biomass of phytoplankton and actinomycetes in freshwater ponds of Beijing, China

Xiong

Pan

et al. 2009

Aquacult Int

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“…The occurrence of cyanobacterial secondary metabolites implied the presence of their corresponding producers in the waters. A total of four other secondary metabolites tested were present at concentrations lower than the odor threshold levels or drinking water guideline values (<1 μg/L for microcystin and cylindrospermopsin, <10 ng/L for geosmin, and <500 ng/L for β-cyclocitral). − Low levels of the cyanotoxins, microcystin, and cylindrospermopsin coincided with low abundance of Microcystis and Cylindrospermopsis detected from qPCR assays. Geosmin, 2-MIB, β-cyclocitral, and β-ionone are odor compounds of cyanobacteria, while some of these volatile compounds can affect the dynamics of bacterioplankton due to their lytic and inhibitory characteristics. , In addition to cyanobacteria, Actinomycetes (Actinobacteria) also may produce geosmin and 2-MIB in soil and aquatic environments .…”

Section: Discussionmentioning

confidence: 94%

Relationship of Microbiota and Cyanobacterial Secondary Metabolites in Planktothricoides-Dominated Bloom

Tan

Thompson

et al. 2017

Environ. Sci. Technol.

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The identification of phytoplankton species and microbial biodiversity is necessary to assess water ecosystem health and the quality of water resources. We investigated the short-term (2 days) vertical and diel variations in bacterial community structure and microbially derived secondary metabolites during a cyanobacterial bloom that emerged in a highly urbanized tropical reservoir. The waterbody was largely dominated by the cyanobacteria Planktothricoides spp., together with the Synechococcus, Pseudanabaena, Prochlorothrix, and Limnothrix. Spatial differences (i.e., water depth) rather than temporal differences (i.e., day versus night) better-explained the short-term variability in water quality parameters and bacterial community composition. Difference in bacterial structure suggested a resource-driven distribution pattern for the community. We found that the freshwater bacterial community associated with cyanobacterial blooms is largely conserved at the phylum level, with Proteobacteria (β-proteobateria), Bacteroidetes, and Actinobacteria as the main taxa despite the cyanobacterial species present and geographical (Asia, Europe, Australia, and North America) or climatic distinctions. Through multivariate statistical analyses of the bacterial community, environmental parameters, and secondary metabolite concentrations, we observed positive relationships between the occurrences of cyanobacterial groups and off-flavor compounds (2-methyisoborneol and β-ionone), suggesting a cyanobacterial origin. This study demonstrates the potential of 16S rRNA gene amplicon sequencing as a supporting tool in algal bloom monitoring or water-resource management.

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“…The sources of contaminants producing taste and odors in water can be attributed to both natural and anthropogenic compounds. Geosmin, 2-methyl isoborneol (MIB), trans -2- cis -6-nonadienal, 2,3,6-trichloroanisole, dimethyl polysulfides, and isopropyl methoxy pyrazine, among others, are the most frequently reported compounds of biological origin causing off-flavors in water at nanogram per liter levels ( − ). Excellent reviews on this subject have been published ( , ).…”

Section: Introductionmentioning

confidence: 99%

Identification of 1,3-Dioxanes and 1,3-Dioxolanes as Malodorous Compounds at Trace Levels in River Water, Groundwater, and Tap Water

Romero¹,

Ventura²,

Caixach³

et al. 1998

Environ. Sci. Technol.

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A study of organic compounds imparting odor problems in river waters and groundwaters has been conducted. The Tordera aquifer located in Barcelona and Girona (NE Spain) is the water supply reserve for many seasonally crowded villages on the coast. Closed loop stripping analysis (CLSA) and flavor profile analysis (FPA) have been employed as analytical tools to identify the compounds responsible for the odor complaints. The feasibility of purge-and-trap (P&T) has also been evaluated. The 2-alkyl-5,5-dimethyl-1,3-dioxanes and 2-alkyl-4-methyl-1,3-dioxolanes were the most significant compounds identified in river water and groundwater with a threshold odor of 10 ng/L for 2-ethyl-5,5-dimethyl-1,3-dioxane (2EDD), the most malodorous compound. The analyses were carried out by HRGC/MS, and the synthesized 1,3-dioxanes and dioxolanes were characterized by CI-MS and EI-MS/MS techniques. A company, currently manufacturing saturated and unsaturated polyester resins, located in the upper course of the river, produced these compounds as byproducts during the synthesis of resins. The pollution by dioxanes and dioxolanes affected all the aquifer and slowly diminished to the ppt levels when the company was forced to correctly treat their wastewaters. Additional examples of the pres ence of dioxanes and dioxolanes in wastewaters of other resin plants and also tap water of Barcelona are shown.

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The identification of odorous metabolites produced from algal monocultures

Cited by 31 publications

References 19 publications

Relationship between concentrations of odorous compounds and biomass of phytoplankton and actinomycetes in freshwater ponds of Beijing, China

Relationship between concentrations of odorous compounds and biomass of phytoplankton and actinomycetes in freshwater ponds of Beijing, China

Relationship of Microbiota and Cyanobacterial Secondary Metabolites in Planktothricoides-Dominated Bloom

Identification of 1,3-Dioxanes and 1,3-Dioxolanes as Malodorous Compounds at Trace Levels in River Water, Groundwater, and Tap Water

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