用于食品中需氧菌、大肠菌群、大肠杆菌以及酵母菌和霉菌计数的Petrifilm方法与传统方法的比较。
Comparison of Petrifilm method to conventional methods for enumerating aerobic bacteria, coliforms, Escherichia coli and yeasts and molds in foods.
作者信息
Jordano R, Lopez C, Rodriguez V, Cordoba G, Medina L M, Barrios J
机构信息
Department of Food Science and Technology, University of Córdoba, Facultad de Veterinaria, Spain.
出版信息
Acta Microbiol Immunol Hung. 1995;42(3):255-9.
The Petrifilm plates method was compared to conventional methods (PCA, VRBA, Levine EMB agar and OGYE agar) for enumeration of mesophilic aerobic bacteria, coliforms, Escherichia coli, and yeasts+molds in six homogeneous lots of different food groups (pasteurized milk, yoghurt ice cream, eggs, minced meat, fresh strawberries and frozen green beans). For all the microbiological criteria except for yeasts and molds and mesophilic aerobic bacteria in frozen green beans, the mean values of counts with Petrifilm plates were higher than those obtained with traditional methods. The correlation coefficient of Petrifilm aerobic bacteria, coliforms, and yeasts + molds v. PCA, VRBA and OGYE agar for each microbiological criterion for a composite of six food products were 0.897, 0.861 and 0.981, respectively.
采用Petrifilm平板法与传统方法（PCA、VRBA、伊红美蓝琼脂和OGYE琼脂）对6个不同食品组（巴氏杀菌乳、酸奶冰淇淋、鸡蛋、碎肉、新鲜草莓和冷冻青豆）的均质批次进行嗜温需氧菌、大肠菌群、大肠杆菌以及酵母菌和霉菌的计数比较。对于除冷冻青豆中的酵母菌和霉菌以及嗜温需氧菌之外的所有微生物标准，Petrifilm平板计数的平均值高于传统方法获得的平均值。对于六种食品组合的每种微生物标准，Petrifilm需氧菌、大肠菌群以及酵母菌和霉菌与PCA、VRBA和OGYE琼脂计数的相关系数分别为0.897、0.861和0.981。
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