Abstract (EN):
The effects of washing whole scad (Trachurus trachurus) with fresh water and seawater were evaluated. Fish evaluations for 12 days of storage in ice included sensory (EU and the QIM scheme), physical (Torrymeter and Freshmeter) and microbiological changes [counts of total bacterial numbers, specific spoilage organisms (SSO) and Pseudomonas]. The main conclusions are that both kinds of wash influenced physical and microbiological evaluations (mainly on Freshmeter values and counts of SSO). Washes seemed to interfere with properties of the fish skin cells that influenced the instrumental readings. By sensory means, the effects were not detected, resulting in similar shelf-lives, although some slight differences could be observed in mucus brightness in the first 2 days storage in ice. No significant differences were found between washing with tap water and treated seawater, but slightly lower values were obtained initially with seawater, in the first 24-48 h, with the Torrymeter and the Freshmeter.
Language:
English
Type (Professor's evaluation):
Scientific
Contact:
vazpires@icbas.up.pt
No. of pages:
6