돼지 도축장에서 작업된 돼지 도체 표면의 미생물 오염 정도를 평가하고, 미생물 오염을 최소화하는 방안을 모색하고자 이 연구를 실시하였다. 전남지역에서 대일 수출돈육 작업장이었던 4곳의 돼지 도축장을 선정하여 각 작업장에서 내장 적출 전, 내장 적출 후, 최종세척 후, 예냉 3시간 후의 4단계에서 3마리씩 3회 재료를 채취하였다. 각각의 재료에서 호기성세균, 대장균균, ...
돼지 도축장에서 작업된 돼지 도체 표면의 미생물 오염 정도를 평가하고, 미생물 오염을 최소화하는 방안을 모색하고자 이 연구를 실시하였다. 전남지역에서 대일 수출돈육 작업장이었던 4곳의 돼지 도축장을 선정하여 각 작업장에서 내장 적출 전, 내장 적출 후, 최종세척 후, 예냉 3시간 후의 4단계에서 3마리씩 3회 재료를 채취하였다. 각각의 재료에서 호기성세균, 대장균균, Salmonella spp. 및 Listeria spp.의 오염정도를 조사하고 세척 및 소독제를 이용한 거품세척기 및 고압온수세척기를 적용시킨 후의 미생물 오염도를 비교하였다. 4개 도축장의 호기성균수는 내장적출 전 평균 2.58-3.66, 내장적출 후 1.73-3.34, 최종세척 후 1.81-3.30, 예냉 3시간 후 1.59-3.08 log_10CFU/㎠으로 나타났으며, 대장균균수는 내장적출 전 평균 0-2.03, 내장적출 후 0-1.98, 최종세척 후 1.00-2.02, 예냉 3시간 후 0-2.29 log_10CFU/㎠으로 나타났다. Salmonella spp.는 4곳의 도축장에서 0-20%의 검출률을 보였으며, Listeria spp.는 0-5%의 검출률을 보였다. 거품세척 및 온수세척을 적용시킨 후의 돼지도체에서는 호기성세균수와 대장균균수가 대부분의 공정에서는 감소하였으나 예냉 3시간 후에는 증가하였다(p<0.05).
돼지 도축장에서 작업된 돼지 도체 표면의 미생물 오염 정도를 평가하고, 미생물 오염을 최소화하는 방안을 모색하고자 이 연구를 실시하였다. 전남지역에서 대일 수출돈육 작업장이었던 4곳의 돼지 도축장을 선정하여 각 작업장에서 내장 적출 전, 내장 적출 후, 최종세척 후, 예냉 3시간 후의 4단계에서 3마리씩 3회 재료를 채취하였다. 각각의 재료에서 호기성세균, 대장균균, Salmonella spp. 및 Listeria spp.의 오염정도를 조사하고 세척 및 소독제를 이용한 거품세척기 및 고압온수세척기를 적용시킨 후의 미생물 오염도를 비교하였다. 4개 도축장의 호기성균수는 내장적출 전 평균 2.58-3.66, 내장적출 후 1.73-3.34, 최종세척 후 1.81-3.30, 예냉 3시간 후 1.59-3.08 log_10CFU/㎠으로 나타났으며, 대장균균수는 내장적출 전 평균 0-2.03, 내장적출 후 0-1.98, 최종세척 후 1.00-2.02, 예냉 3시간 후 0-2.29 log_10CFU/㎠으로 나타났다. Salmonella spp.는 4곳의 도축장에서 0-20%의 검출률을 보였으며, Listeria spp.는 0-5%의 검출률을 보였다. 거품세척 및 온수세척을 적용시킨 후의 돼지도체에서는 호기성세균수와 대장균균수가 대부분의 공정에서는 감소하였으나 예냉 3시간 후에는 증가하였다(p<0.05).
This study was executed to examine the microbial quantity on the pork carcasses during the slaughtering process and to seek the device to minimize microbial contamination. Four slaughtering plants were selected from Jeonnam province. At each plant, carcasses were sampled by swabbing method at each o...
This study was executed to examine the microbial quantity on the pork carcasses during the slaughtering process and to seek the device to minimize microbial contamination. Four slaughtering plants were selected from Jeonnam province. At each plant, carcasses were sampled by swabbing method at each of four stages of processing - before evisceration, after evisceration, after final carcasses washing, after 3 hours of carcass chilling. Samples were analyzed individually for aerobic plate counts(APC), total coliform counts, presence of Salmonella spp., Listeria spp. and for comparison of the microbial contamination after the application of foamwasher, high pressure-washer with hot water, disinfectant and washing. APC recovered from pork carcasses of four slaughtering plants ranged from 2.58 to 3.66 log_10CFU/㎠ at pre-evisceration, from 1.73 to 3.34 log_10CFU/㎠ at post-evisceration, from 1.81 to 3.30 log_10CFU/㎠ at post-final carcass washing, from 1.59 to 3.08 log_10CFU/㎠ at post-3 hours carcass chilling. Total coliform counts recovered from pork carcasses of four slaughtering plants ranged from 0 to 2.03 log_10CFU/㎠ at pre-evisceration, from 0 to 1.98 log_10CFU/㎠ at post-evisceration, from 1.00 to 2.02 log_10CFU/㎠ at post-final carcass washing, from 0 to 2.29 log_10CFU/㎠ at post-3 hours carcass chilling. Total coliform counts at post-final carcass washing were increased(p<0.05). Incidence of Salmonella spp. from pork carcasses of four slaughtering plants ranged from 0 to 20% and Incidence of Listeria spp. from pork carcasses of four slaughtering plants ranged from 0 to 5%. APC and total coliform counts of pork carcasses after the application of foamwasher, high pressure-washer with hot water, disinfectant and washing, were decreased at most of processing but increased at post-3 hours carcass chilling(p<0.05).
This study was executed to examine the microbial quantity on the pork carcasses during the slaughtering process and to seek the device to minimize microbial contamination. Four slaughtering plants were selected from Jeonnam province. At each plant, carcasses were sampled by swabbing method at each of four stages of processing - before evisceration, after evisceration, after final carcasses washing, after 3 hours of carcass chilling. Samples were analyzed individually for aerobic plate counts(APC), total coliform counts, presence of Salmonella spp., Listeria spp. and for comparison of the microbial contamination after the application of foamwasher, high pressure-washer with hot water, disinfectant and washing. APC recovered from pork carcasses of four slaughtering plants ranged from 2.58 to 3.66 log_10CFU/㎠ at pre-evisceration, from 1.73 to 3.34 log_10CFU/㎠ at post-evisceration, from 1.81 to 3.30 log_10CFU/㎠ at post-final carcass washing, from 1.59 to 3.08 log_10CFU/㎠ at post-3 hours carcass chilling. Total coliform counts recovered from pork carcasses of four slaughtering plants ranged from 0 to 2.03 log_10CFU/㎠ at pre-evisceration, from 0 to 1.98 log_10CFU/㎠ at post-evisceration, from 1.00 to 2.02 log_10CFU/㎠ at post-final carcass washing, from 0 to 2.29 log_10CFU/㎠ at post-3 hours carcass chilling. Total coliform counts at post-final carcass washing were increased(p<0.05). Incidence of Salmonella spp. from pork carcasses of four slaughtering plants ranged from 0 to 20% and Incidence of Listeria spp. from pork carcasses of four slaughtering plants ranged from 0 to 5%. APC and total coliform counts of pork carcasses after the application of foamwasher, high pressure-washer with hot water, disinfectant and washing, were decreased at most of processing but increased at post-3 hours carcass chilling(p<0.05).
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