Analysis of the Determination of Salmonella of Contrast Experiment Among Laboratories

Abstract:

Combining the standard bacteria of Salmonella typhimurium and Salmonella paratyphi respectively with five other Enterobacter bacterium which are common in the usual determination to form into 10 groups of modal Bacteria-bearing Peeled Prawms，isolating and identifying them under the following present standards：GB 4789.4-2010，National food safety standard Food microbiological examination：Staphylococcus aureus. All the standard bacteria of Salmonella and the Enterobacter bacterium can be exactly detected from the 10 groups of test samples. The experiment shows that the characteristics of the colony on the BS would be more evident after culturing for 48h. And the longer the enriched culture cultures，the better the Salmonella grows. Salmonella paratyphi produces a little of H2S. Serratia marcescens inhibits the H2S-reaction of Salmonella paratyphi. Anti-O polyvalent serum of A-F of Salmonella can agglutinates Proteus mirabilis and Citrobacter spp. The determination techniques found in the test would be applied well in the determination of Salmonella for the aquatic products，animals and animal products.