Listeria species in environmental samples from the food plant were detected by 3M Petrifilm by identifying the 210 typical colonies and 70 nontypical colonies from 112 environmental samples.

摘要共采集112个环境样本，挑取了210个典，70个非典鉴定，评估3M测试片对食品加工环境中李斯特的检测能力。