新疆食源性单增李斯特菌监测及血清型分析

Monitoring and serotype analysis of food-borne Listeria monocytogenes in Xinjiang Uygur autonomous region

中文关键词:  新疆  食源性致病菌  单增李斯特菌  血清型

英文关键词:Xinjiang  foodborne pathogens  Listeria monocytogenes  serotype

中文摘要:

      目的 了解新疆食品中单增李斯特菌的污染状况, 为食源性疾病的监测提供科学依据。方法 按照GB 4789.30?2016《食品安全国家标准 食品微生物学检验 单核细胞增生李斯特氏菌检验》, 共监测分析了2013~2019年的3329份样品。结果 在3329份样品中共检出59份单增李斯特菌阳性样品, 检出率为1.77%; 共分离得到63株单增李斯特菌, 分为4个血清型(1/2a、1/2b、1/2c和4b), 优势血清型为1/2a, 占57.14% (36株)。食品中存在不同血清型混合污染。在即食食品中监测到4b型。结论 新疆食品中存在单增李斯特菌的污染, 卫生监督部门尤其要加强肉制品和即食食品的监管力度。

英文摘要:

      Objective To study the contamination status of Listeria monocytogenes in foods in Xinjiang Uygur Autonomous Region, in order to provide scientific basis for food borne disease monitoring. Methods Totally 3329 samples from 2013? 2019 were monitored and analyzed according to GB 4789.30?2016 National food safety stand ard-Food microbiological examination-Listeria monocytogenes. Results A total of 59 Listeria monocytogenes were fo un d in 3329 samples, the detection rate was 1.77%. The isolated 63 strains of Listeria monocytogenes belonged to 4 serotypes (1/2a, 1/2b, 1/2c and, 4b), and 57.14% (36 strains) of the strains belonged to serotype 1/2a. There were mixed contamination of different serotypes in food. The serotype 4b was detected in ready-to-eat food. Conclusion The contamination of Listeria monocytogenes exists in Xinjiang, and the health supervision department should especially strengthen the supervision of meat products and ready-to-eat food.