呼和浩特市食品中单核细胞增生李斯特氏菌污染状况调查

The Listeria Monocytogenes Bacteria Pollution Survey of Hohhot Food

目的本次研究旨在通过对呼市居民主要的消费食品进行单增李斯特菌的污染调查,从而掌握该菌对食品的污染情况。方法随机抽取超市、农贸市场、酒店、食品店出售的食品共计15种543份,采用国标法进行检测。结果 543份食品中,4种食品中检测出6株单增李斯特菌,检出率为1.11%。其中生畜肉检出2株,检出率3.77%;生禽肉检出2株,检出率6.67%;凉拌菜检出1株,检出率3.33%;即食非发酵类豆制品1株,检出率1.82%,其余食品均未检出。结论生畜肉、生禽肉、凉拌菜、即食非发酵类豆制品检出率均较高。提示存在发生食源性单增李斯特菌病的潜在危险。因此,加强食品的卫生监督管理,开展食品污染源调查,提高公众在食品储藏和加工方面的卫生意识十分必要。

Objective The purpose of the investigation was to provide scientific basis for food safety study and prevention of food-borne diseases by study on Listeria monocytogenes contamination of foods in Huhhot. Methods The LB method was used in the research. 420 samples were tested in the investigation, 6 were positive for L. monocytogenes, and the total detective rate was 1.43%. Results The L. monocytogenes detective rate of raw meat, raw poultry, chinese salad, non-fermented soy products, were 5.26%, 6.67%, 6.67%. The L. monocytogenes detectable rate of raw meat, raw poultry, chinese salad, non-fermented soy products are higher than the national average.Other food were positive for L. monocytogenes. Conclusion The results demonstrated that L. monocytogene contamination was in different kinds of foods in Huhhot. And there was a potential risk of food-born disease by L. monocytogenes. So it was necessary to strengthen local sanitary supervision, to investigate food contamination source, and to enhance public consciousness of food storage and processing hygiene.