大理市食品包装用纸的微生物学检测

目的:了解大理市熟食食品包装用纸的卫生状况,为卫生监督提供理论依据。方法:在学校食堂、菜市场、超市三种场所,随机采集不同材质食品包装纸,通过细菌培养、菌落形态观察、革兰氏染色镜检带菌情况。结果:200份样本中有155份带菌,总带菌率为77.5%。学校食堂、菜市场、超市三种不同场所来源样本的带菌率分别为65.7%、82.9%、85.0%。普通白纸、牛皮纸、防油纸带菌率为68.2%、91.9%、70.0%。结论:大理市熟食包装用纸细菌污染率较高。

On the Microorganism＇s Test of Food-wrapping Paper in Dali

Objective: To learn about the hygienic situation of wrapping-paper for cooked food in Dali so as to provide basis for public hygiene supervision.Methods: Randomly gather food wrapping paper of different materials from school canteens,food markets,and supermarkets.Test their bacterial content by culturing the specimens,observing colonial morphology and Gram’s stain.Results: There were 155 specimens carrying bacteria among 200 specimens.Total detected rate was 77.5%.The detected rates of three different areas were 65.7%(school canteen),82.9%(food market) and 85.0%(supermarket).The detected rates of three different materials were 68.2%(ordinary white paper),91.9%(Kraft paper) and 70.0%(oil-proof paper).Conclusion: Contamination ratio of wrapping paper for cooked food was higher in Dali Area.