Microbially Derived Off-Flavor from Geosmin and 2-Methylisoborneol: Sources and Remediation

Krishnani, Kishore Kumar; Ravichandran, P. T.; Ayyappan, S.

doi:10.1007/978-0-387-74816-0_1

Cited by 17 publications

(14 citation statements)

References 194 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Here, it may be beneficial to learn from urban waste water treatment processes and management . In addition, it is essential to develop production methods and routines that ensure high product quality and reduce general problems in RAS such as off-flavors caused by for example geosmin and 2-methylisoborneol (Houle et al, 2011;Krishnani et al, 2008;Schrader and Summerfelt, 2010;Tucker, 24 2000). Treatment of diseases is another ubiquitous issue in RAS.…”

Section: Discussionmentioning

confidence: 99%

Farming different species in RAS in Nordic countries: Current status and future perspectives

Dalsgaard

Lund

Thorarinsdottir³

et al. 2013

Aquacultural Engineering

290

131

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Farming different species in RAS in Nordic countries: Current status and future perspectives

Dalsgaard

Lund

Thorarinsdottir³

et al. 2013

Aquacultural Engineering

290

131

View full text Add to dashboard Cite

“…Geosmin and MIB are secondary metabolites produced by a wide range of microbiota common to land‐based aquaculture systems. Actinomycetes and cyanobacteria are considered the most important geosmin and MIB producers in aquaculture systems (reviewed by Krishnani, Ravichandran & Ayyappan ). Fish concentrate these chemicals in body lipids.…”

Section: Introductionmentioning

confidence: 99%

Geosmin depuration from European eel (Anguilla anguilla ) is not affected by the water renewal rate of depuration tanks

et al. 2017

View full text Add to dashboard Cite

This study established that geosmin depuration from European eel is not affected by the water renewal rate of depuration tanks. A general fish bioaccumulation model extended with terms that account for effects of tank water renewal rate and system losses of chemicals, predicted strong effects of the water renewal rate of depuration tanks on geosmin depuration from European eel. Model predictions were validated in a depuration experiment with geosmin-loaded European eel (n = 95) with a mean (SD) individual weight of 134.4 (5.0) g and a mean (SD) lipid content of 33.7 (2.8) % (w/w). Fish were depurated for 24, 48 or 72 h at three different tank water renewal rates (0.3, 3.3 and 33 day À1 ). Treatments were installed by three different mean (SD) water flow rates (13.8 (1.3), 143.5 (9.2) and 1511 (80) L kg fish À1 day À1 ) over 30-L tanks. Eels eliminated geosmin from their bodies, but unlike the model predicted, this was independent of the water renewal rate of the depuration tanks. Although being eliminated from the fish, geosmin hardly appeared and certainly did not accumulate in the water of the depuration tanks as the model predicted. This observation may be explained by geosmin being eliminated from eel as metabolite rather than the parent compound. Geosmin elimination from eel seems not to occur according to the generally accepted passive diffusion mechanism for excretion of lipophilic chemicals, and geosmin biotransformation by the eel seems indicated. Clearly geosmin depuration from European eel cannot be enhanced by increasing water renewal rates of depuration tanks.

show abstract

“…Geosmin and MIB are secondary metabolites produced by a wide range of microbiota common to land‐based aquaculture systems. Actinomycetes and cyanobacteria are considered the most important geosmin and MIB producers in aquaculture systems (reviewed by Krishnani, Ravichandran & Ayyappa, ). Off‐flavour in farmed fish is one of the most significant economic problems for land‐based aquaculture (Robin, Cravedi, Hillenweck, Deshayes & Vallod, ; Vallod, Cravedi, Hillenweck & Robin, ).…”

Section: Introductionmentioning

confidence: 99%

Experimental validation of geosmin uptake in rainbow trout,Oncorhynchus mykiss(Waldbaum) suggests biotransformation

et al. 2017

View full text Add to dashboard Cite

The bioconcentration of waterborne geosmin in rainbow trout, Oncorhynchus mykiss (Waldbaum) was assessed. Fifty rainbow trout with a mean (SD) weight of 226.6 (29.0) g and lipid content of 6.2 (0.6) % (w/w) were exposed to geosmin in static water for 0, 2, 4, 6, 8, 12, 24, 36, 48 and 120 hr, with one tank containing five fish for each exposure period. Geosmin concentrations were measured in fish tissue and wileyonlinelibrary.com/journal/are Aquaculture Research. 2018;49:668-675.

show abstract

Microbially Derived Off-Flavor from Geosmin and 2-Methylisoborneol: Sources and Remediation

Cited by 17 publications

References 194 publications

Farming different species in RAS in Nordic countries: Current status and future perspectives

Farming different species in RAS in Nordic countries: Current status and future perspectives

Geosmin depuration from European eel (Anguilla anguilla ) is not affected by the water renewal rate of depuration tanks

Experimental validation of geosmin uptake in rainbow trout,Oncorhynchus mykiss(Waldbaum) suggests biotransformation

Contact Info

Product

Resources

About