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目的了解陕西省食品中食源性致病菌沙门氏菌污染情况。方法 2002-2007年检测陕西省8个监测点的14类2 960份食品,采用现场调查与实验室分析相结合的方法。结果 2 960份食品中检出沙门氏菌污染230份,沙门氏菌检出率7.77%。其中生猪肉、生牛肉、生禽肉、生羊肉的沙门氏菌检出率分别为19.10%、21.93%、11.63%、16.59%;熟肉和水产类为检出率5.76%、3.83%;奶类、速冻米面等食品中未检出。在时间上,以2005年检出率最高,2007年最低。在空间上,陕北高于关中高于陕南(χ2=12.16,P<0.01);病原学鉴定分属11个血清群或亚群、28个血清型,发现了陕西省未曾报道的Q群和其他血清型沙门氏菌。结论要在努力把关生肉食品微生物污染的基础上,高度关注和严格控制熟肉食品的微生物污染,防止肉食品变质;根据关中、陕北人口密度高、流动性大的特征开展食品卫生工作,落实监管措施,防范新种群菌株的扩散,保障食品安全。
Objective To understand the contamination of foodborne pathogens Salmonella in Shaanxi Province. Methods A total of 2 960 foods in 14 categories of 8 monitoring stations in Shaanxi Province were tested during 2002-2007. The methods of field investigation and laboratory analysis were used. Results 2309 Salmonella were detected in 2 960 food samples, and the detection rate of Salmonella was 7.77%. The detection rates of Salmonella in raw pork, raw beef, raw poultry and raw lamb were 19.10%, 21.93%, 11.63% and 16.59% respectively. The detection rates of cooked meat and aquatic products were 5.76% and 3.83% Frozen rice and other foods not detected. In time, the highest detection rate in 2005, the lowest in 2007. Spatially, northern Shaanxi was higher than that of southern Shaanxi (χ2 = 12.16, P <0.01); etiological identification belonged to 11 serogroups or subgroups and 28 serotypes, and no Q group was found in Shaanxi Province And other serotypes Salmonella. Conclusion It is necessary to pay close attention to and strictly control the microbial contamination of cooked meat products and prevent the deterioration of meat products on the basis of efforts to control the microbial contamination of raw meat products. According to the characteristics of high population density and high liquidity in Guanzhong and Northern Shaanxi, food hygiene work is carried out and implemented Regulatory measures to prevent the proliferation of new strains of bacteria to ensure food safety.