2011~2019年吉林省市售食品中单增李斯特菌污染情况分析

Analysis of the contamination situation of Listeria monocytogenes in commercial foods in Jilin province in 2011‒2019

中文关键词:  市售食品  单增李斯特菌  食品监测  吉林省

英文关键词:commercial foods  Listeria monocytogenes  food monitoring  Jilin province

中文摘要:

      目的 了解吉林省市售食品中单增李斯特菌的污染情况。方法 对2011~2019年从吉林省9个监测地区采集到的8279件市售食品样本进行单增李斯特菌的分离鉴定。结果 2011~2019年从吉林省市售食品中共检测出单增李斯特菌阳性菌株352株, 总检出率4.25%; 各检测地区间长春市阳性检出率最高(7.63%), 其次为四平市(6.03%); 12类市售食品中肉及肉质品阳性检出率最高(9.41%), 其次为速冻米面食品(6.72%); 各类采样地点中超市的阳性检出率最高(6.89%), 其次为农贸市场(5.64%)和快餐店(5.08%); 散装食品的阳性检出率明显高于预包装食品。结论 2019年吉林省的单增李斯特菌阳性检出率较临近3年呈回升态势; 长春市与四平市单增李斯特菌污染情况较其他地区严重; 肉与肉制品单增李斯特菌的污染情况最为严重, 其次为速冻米面食品; 流通环节中单增李斯特菌阳性检出率较高; 散装食品的单增李斯特菌污染情况较预包装食品严重。有关部门应针对地区现状、食品类型和包装类型的不同加强管理力度。

英文摘要:

      Objective To understand the contamination situation of Listeria monocytogenes in foods sold in Jilin province. Methods Isolation and identification of Listeria monocytogenes were carried out in 8279 commercial food samples collected from 9 monitoring areas in Jilin province from 2011 to 2019. Results From 2011 to 2019, a total of 352 Listeria monocytogenes positive strains were detected from foods sold in Jilin province, with a total detection rate of 4.25%; Changchun city had the highest positive detection rate among the tested areas (7.63%), followed by Siping city (6.03%). The positive detection rate of meat and meat products was the highest (9.41%) in 12 types of commercial foods, followed by quick-frozen rice and flour food (6.72%); the positive detection rate of supermarkets in various sampling locations was the highest (6.89%), followed by farmers' markets (5.64%) and fast food restaurants (5.08%); the positive detection rate of bulk food was significantly higher than that of prepackaged food. Conclusion In 2019, the positive detection rate of Listeria monocytogenes in Jilin province showed an upward trend compared with the recent 3 years; the pollution of Listeria monocytogenes in Changchun city and Siping city was more serious than other regions; the pollution of Listeria monocytogenes in meat and meat products was the most serious, followed by quick-frozen rice and noodles; the positive detection rate of Listeria monocytogenes in the circulation was higher; the pollution of Listeria monocytogenes in bulk food was more serious than that of prepackaged food. Relevant departments should strengthen management in accordance with the status quo of the region, food types and packaging types.