菌落

There was round microcolony with black center and transparent periphery generated on SS agar plate.

在 SS 琼脂平板上形成色、周边透明的圆形小落。

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个典型落，70个非典型落进行鉴定，评估3M测试片对食品加工环境李斯特的检测能力。