Application of Nucleic Acid Reference Material for Rapid Detection of Cronobacter sakazakii (Cronobacter spp.) in Flammulina velutipes

Figure 9

The PCR analysis of the long-term test of genomic DNA reference materials for 8 months. M, DNA marker D (100 ∼ 2000 bp); lanes 1–3, PCR results of 3 samples stored at −20°C, respectively; lanes 4–6, PCR results of 3 samples stored at 4°C, respectively; lane 7, negative control; and lane 8, blank control.