Effects of Various Physicochemical Treatments on Volatiles and Sensory Characteristics of Irradiated Beef Bulgogi

Off-flavor and lipid oxidation are possible defects of irradiated bulgogi. This study compared the effects of several physico-chemical treatments on microbial safety, volatiles, lipid oxidation, and sensory properties of irradiated beef bulgogi. Samples were separately irradiated with 20 kGy after each treatment such as packaging (aerobic and vacuum), antioxidants (vitamin C+α-tocopherol (0.0 and 1.0%, w/w)), charcoal teabags (0 and 0.5%), or different temperatures (room temperature, -20, and -70°C). No bacterial growth was observed (p