Salmonella enteritidis marker and application thereof

The invention discloses a salmonella enteritidis marker. The salmonella enteritidis marker is prepared from the following five metabolites: L-proline, L-valine, L-n-leucine, acetylcholine and L-methionine. The invention also provides a detection method and a detection kit for identifying salmonella enteritidis. According to the invention, five salmonella enteritidis markers are identified by combining non-targeted and targeted metabonomics methods, the AUC values of the five markers are all higher than 0.9, and the AUC value of the five markers is 0.956 through combined analysis, so that the salmonella enteritidis marker has higher sensitivity and specificity, and has higher accuracy and credibility compared with other detection methods. The method can be used for rapidly identifying salmonella enteritidis pollution in poultry food. 本发明公开了一种肠炎沙门氏菌标志物，所述标志物包括以下五种代谢物：L-脯氨酸、L-缬氨酸、L-正亮氨酸、乙酰胆碱和L-蛋氨酸。本发明还提供了一种用于鉴定肠炎沙门氏菌的检测方法和检测试剂盒。本发明通过联用非靶向和靶向代谢组学方法，鉴定出5个肠炎沙门氏菌标志物，这5个标志物的AUC值均高于0.9，且5个标志物联合分析AUC为0.956，具有较高的敏感性和特异性