Effects of Temperature on the Uptake and Depuration of 2-Methylisoborneol (MIB) in Channel Catfish Ictalurus punctatus
作者： Peter B. Johnsen , Steven W. Lloyd , Bryan T. Vinyard , Christopher P. Dionigi
DOI: 10.1111/J.1749-7345.1996.TB00589.X
关键词:
摘要: The microbial metabolite 2-methylisoborneol (MIB) imparts a muddy off-flavor to channel catfish Ictalurus punctatus. Uptake and depuration of MIB from fish are important considerations in the design implementation systems remove off-flavors prior processing. kinetics uptake by were determined placing 6.5, 14.0, 25.0, 34.0 C water containing approximately 1.0 μg/L chemically-synthesized MIB. Fish sacrificed following 0, 2, 4, 8, 24 h exposure Fillet tissue samples subjected gas chromatographic fat content analysis. model for was: MIB fillet (μg/kg) =−0.61 ± 4.2 [log(h± 1)] 0.0076(T) (h) 0.089(T), where is duration hours T temperature degrees C. accounted 74% total variation observed concentrations indicated that was not strongly correlated with uptake. To investigate off-flavors, halted. Tissue obtained 24, 48, 72 held at These data yielded model: MIB = 3.6 0.176(T) – 2.06 0.00296(T) 0.197 (% fat), where hours, C, % tissue. 67% concentrations. Reducing optimizing temperatures may augment removal tissues
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