Storage quality of iced channel catfish fed different protein levels
1991
Huang, Y.W. | Eitenmiller, R.R. | Lillard, D.A. | Koehler, P.E.
Channel catfish (Ictalurus punctatus) were fed diets containing five ratios of digestible energy/ protein which were equivalent to 24, 28, 32, 36, and 40% of protein levels. Fillets from these fish were overwrapped with polyvinylidene chloride (PVDC) film and stored in ice for 21 days. Storage quality was measured by using chemical, microbiological and sensory methods. Results showed that diet with lowest protein level (24%) had significantly highest (p < 0.05) fat content in the muscle. However, no significant effect of fat content on free fatty acid content and TBA number in all samples during the entire holding time was found. In general, panelists were unable to differentiate off-flavor and acceptance among fillet samples from fish fed different protein levels.
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