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目的了解泰安市市售膨化食品的卫生状况及食源性致病菌污染状况,为预防和控制食源性疾病提供科学依据。方法依据GB 4789-2010对市售膨化食品进行菌落总数、大肠菌群及致病菌检测。结果 2011年-2013年共检测膨化食品283份,总合格率为84.5%(239/283)。3年合格率差异无统计学意义。薯片、虾条、雪饼、爆米花4类膨化食品合格率差异无统计学意义。不同卫生指标合格率:菌落总数为86.6%、大肠菌群为98.2%、致病菌为95.8%,差异有统计学意义(χ2=35.266,P<0.001)。不同致病菌检出情况:沙门菌、志贺菌、金黄色葡萄球菌的检出率分别为0.7%、0.0%、3.5%,差异有统计学意义(χ2=15.755,P<0.001)。结论本市市售膨化食品存在卫生安全隐患,污染指标主要是菌落总数,金黄色葡萄球菌、沙门菌是主要污染菌。今后相关监督部门应加强监管,确保食品安全。相关检验机构应加强设备更新与技术培训,做好技术支撑。
Objective To understand the health status of foodstuffs in Tai’an City and the contamination status of food-borne pathogens, so as to provide a scientific basis for the prevention and control of foodborne diseases. Methods According to GB 4789-2010 on the market of puffed food colony count, coliform bacteria and pathogenic bacteria detection. Results A total of 283 puffed foods were tested during 2011-2013 with a total pass rate of 84.5% (239/283). 3-year pass rate difference was not statistically significant. There was no significant difference in the passing rate of the four categories of puffed food such as potato chips, shrimp sticks, snow cake and popcorn. Different health indicators pass rate: the total number of colonies was 86.6%, coliform bacteria was 98.2%, pathogenic bacteria was 95.8%, the difference was statistically significant (χ2 = 35.266, P <0.001). Detection of different pathogenic bacteria: Salmonella, Shigella, Staphylococcus aureus detection rates were 0.7%, 0.0%, 3.5%, the difference was statistically significant (χ2 = 15.755, P <0.001). Conclusion There are health and safety risks in the puffed food on the market in this Municipality. The main pollution indicators are the total number of colonies, Staphylococcus aureus and Salmonella are the main pollutants. Relevant supervision departments should strengthen supervision and ensure food safety in the future. Relevant inspection agencies should strengthen equipment updates and technical training, good technical support.