Quality characteristics of refrigerated mackerel Scomberomorus commerson using gelatin-polycaprolactone composite film incorporated with lysozyme and pomegranate peel extract

Abstract

The aim of this study was to evaluate the preservation effect of the pomegranate peel extract (PPE)-lysozyme (Lys) combination addition on gelatin (G)–polycaprolactone (PCL) composite film on the quality of mackerel Scomberomorus commerson via physicochemical analysis (pH, total viable bases nitrogen (TVB-N), thiobarbituric acid reactive substances (TBARS), free fatty acid (FFA), weight loss, color), microbiological (total mesophilic count (TMC) and psychrotrophic (PTC) count) and sensorial assessments during refrigerated storage. The results showed that incorporating PPE and Lys into G/PCL solution could significantly (P 9 days) in the shelf-life was attributed to the antioxidant and antimicrobial characteristics of G/PCL film containing both of PPE and Lys. These results confirmed that G/PCL-Lys-PPE film was effective for the preservation of mackerel.

Keywords

• scomberomorus commerson
• gelatin
• pomegranate peel extract
• lysozyme
• shelf life