Modelling of Taste-Taint in Fish ... 57protocols in RAS farming to minimize taint in fish-flesh. An advantage is it
can readily be simulated in standard spread-sheeting tools by users with a
range of sophistication.
Model predictions when compared with experimental observations
obtained from a detailed two-year study in commercial-scale RAS showed
good agreement over the range of low taste-taint concentration (0 to 2, μg kg-
(^1) ), especially below the consumer rejection threshold (~ 0.7 μg kg- (^1) ). Possible
reasons for some over-predictions are attributed to rapid fluctuation of taste-
taint concentration in RAS water with growth time and different (exponential)
growth constants shown by larger and smaller fish, and errors in obtaining
representative samples from fish-flesh. These validation studies highlighted
that the model can be meaningfully applied to RAS systems with lower
variations and/or lower taste-taint chemical concentrations in RAS growth
water. This model can be considered as most up-to-date.
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