Combined Effect of Garlic Juice and Sa-Tay Marinade on Quality Changes of Oyster Meat during Chilled Storage

摘要

Traditionally, meat has been marinated to improve yield, flavor, tenderness, and may increase product shelf life. Sa-tay is a popular dish in Thai restaurant. Physical, chemical, microbiological and sensory qualities after the oyster meat treated with garlic 0, 2 ml of garlic juice then marinated with Sa-tay condiment (8%, wt/wt) were monitored during chilled storage, 4℃ ± 2℃. pH and glycogen content of all treatments decreased while TVB, lactic acid content, ammonia content and K-value increased as storage time. A TBARS, rancidity indicator, of the control was higher compared with other treatments. Mesophilic and lactic acid bacteria of all treatments particularly the oyster treated with the juice increased as storage time increased. However, psychrophilic bacteria, coliforms, fecal coliforms, Escherichia coli, Staphylococcus aureus, Salmonella spp. and Vibrio spp. were low throughout the storage. Consumer acceptability scores of all treatments were higher than borderline (>5) at the end of the storage, 12 days.