我国市售冷冻肉糜制品中常见食源性致病菌污染状况研究
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(国家食品安全风险评估中心,北京 100022)

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杨舒然 女 助理研究员 研究方向为食品安全与公共卫生 E-mail:yangshuran@cfsa.net.cn 杨大进 男 研究员 研究方向为食品安全与公共卫生E-mail:yangdajin@cfsa.net.cn

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基金项目:

国家重点研发计划(2017YFC1601503)


Study on the contamination status of foodborne pathogens in frozen minced meat products on China market
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(China National Center for Food Safety Risk Assessment,Beijing 100022,China)

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    摘要:

    目的 研究分析我国市售冷冻肉糜制品中常见食源性致病菌污染状况。方法 运用随机抽样原则,在具有代表性的流通和餐饮环节随机抽样采集冷冻肉糜制品样品共计3 905份,采用国标方法检测单核细胞增生李斯特菌、金黄色葡萄球菌和沙门菌。结果 在3 905份冷冻肉糜制品中,共检出阳性样品536份,三种致病菌的总检出率为13.73%,其中单核细胞增生李斯特菌检出率为5.71%(223/3 905),金黄色葡萄球菌检出率为8.32%(325/3 905),沙门菌为0.72%(28/3 905)。不同种类样品中,猪肉肉糜沙门菌检出率最高。散装冷冻肉糜制品沙门菌检出率高于预包装制品。经过统计分析,造成污染的主要原因:一是食品原材料污染;二是冷冻肉糜制品加工过程中污染,如加工步骤较多而质控不严格;三是冷冻肉糜制品运输过程污染,主要是难以保证冷链。结论 我国市售冷冻肉糜制品存在致病菌污染,卫生状况有待提高。

    Abstract:

    Objective To study on the contamination status of foodborne pathogens in frozen minced meat products on the market. Methods China national standard method was applied to detect Listeria monocytogenes, Staphylococcus aureus and Salmonella spp. Totally 3 905 frozen minced meat product samples were randomly collected. Results 536 positive samples were detected in 3 905 frozen minced meat products samples. The overall detection rate of the three pathogens was 13.73%. The detection rate of Listeria monocytogenes, Staphylococcus aureus and Salmonella spp. was 5.71%(223/3 905), 8.32%(325/3 905)and 0.72%(28/3 905), respectively. The detection rate of Salmonella spp. in frozen minced pork was the highest among different kinds of samples. The detection rate of Salmonella spp. in frozen meat products in unpackaged samples was higher than that in packaged samples. The main reasons for the pollution include:firstly, food raw materials were polluted; secondly, there were many processing steps, and their quality control was not strictly performed; thirdly, it was difficult to guarantee the cold chain of frozen minced meat products in transportation. Conclusion There was pathogenic contamination in frozen minced meat products on the market. The hygienic situation need to be improved.

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杨舒然,闫琳,裴晓燕,杨大进.我国市售冷冻肉糜制品中常见食源性致病菌污染状况研究[J].中国食品卫生杂志,2020,32(2):180-183.

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  • 收稿日期:2020-01-06
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  • 在线发布日期: 2020-05-01
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