3.5. Descriptive sensory analysis
For raw catfish fillets, the off-odor and spoilage scores were not
different (p > 0.05) between normal and red catfish fillets (Table 2).
However, the appearance descriptors, i.e., pinking intensity, sliminess
and color intensity were greater (p < 0.05) in red catfish fillets
when compared to normal fillets (Table 2). The large difference
between normal and reddish fillets in terms of pinking intensity
also correspond with a* value whichwas significantly greater in red