Turkish Journal of Fisheries and Aquatic Sciences
2021, Vol 21, Num, 11 (Pages: 535-540)
Reduction of Salmonella Enteritidis in Fish by Microwave Cooking
2 Department of Food Engineering, Engineering Faculty, Sakarya University, 54187 Sakarya, Turkey DOI : 10.4194/1303-2712-v21_11_01 Viewed : 1856 - Downloaded : 2001 The effect of microwave cooking on the survival of Salmonella Enteritidis was investigated. Inoculated whiting and salmon fillets (6-7 log cfu/cm2 ) were cooked in microwave either packed or unpacked at two internal temperatures (50 and 70°C). When the samples were cooked up to the internal temperature of 50°C, the reductions were 1.82 log cfu/cm2 (29%) for packed and 0.69 log cfu/cm2 (11%) for unpacked whiting. For the same cooking temperature, the reductions were 2.39 (33%) and 0.73 log cfu/ cm2 (10%) for packed and unpacked salmon, respectively. When the internal temperature was 70°C, the reductions in S. Enteritidis counts were 2.89 (45%) and 3.90 cfu/cm2 (54%) unpacked whiting and salmon, respectively. However, the reductions were higher in packed samples of both fish cooked to 70C internal temperature than that of unpacked samples and counts of the pathogen were below the detectable level (<1.00 log cfu/cm2 ). These results suggested that packaging increased the S. Enteritidis reduction during microwave cooking and the reductions were higher in salmon than that of whiting. Microwave-cooking instructions must be included in the MW operating manuals. The foods must be cooked in microwave not lower than 360 W and 70°C. Keywords : Microwave, Salmonella, Fish, Salmon, Whiting