Determination of changes in chemical and sensory quality of sea bass marinades stored at+4 (+/- 1)degrees C in marinating solution

Abstract

Sea bass (Dicentrarchus labrax) fish fillets (scaly, descaled and skinned) were marinated in a solution composed of 2.5% acetic acid and 11% sodium chloride and stored at +4 (+/- 1)degrees C. Chemical and sensory attributes of the marinated sea bass fillets were monitored during the storage period of 90 days. According to sensory analysis results, only the skinned fillets failed to sum up the overall acceptability score of >= 5 at the end of the storage period. Of those chemical quality parameters total volatile basis nitrogen (TVB-N), trimethylamine (TMA-N), and pH measured for both marinated scaly and descaled fillets fluctuated within the acceptability limits during the entire storage period. Only the thiobarbituric acid (TBA) values exceeded the acceptability limits on days 70 and 56 for the marinated descaled and skinned fillets, respectively. These results showed that marinating may be used as a reliable preserving method for sea bass.