Abstract
ABSTRACT The evaluation of oyster marinating (Crassostrea gasar) and pasteurization process in vacuum packaging during storage. The aim of this study was to establish better conditions for marinating and pasteurization for oysters (Crassostrea gasar) and to evaluate their shelf life. Microbiological, physicochemical and sensory analyzes were carried out on the oysters and on the optimized product. In the vacuum-packed product, under refrigeration, pH, water activity (aw), total volatile bases (N-TVB) and texture analyzes were performed, every 7 days for 35 days. Oysters had a high protein, mineral and amino acid content and a low lipid content. Planning 23 and 221 hour, 2.5% acetic acid, 1% NaCl and pasteurization was 62°C/2 min. Sensory analysis achieved acceptability above 80%. Marinated oysters remained suitable for consumption for 21 days, being an alternative to extend the shelf life and add value.
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