Figure 2. Fluorescence profiles obtained using the Experion™ Automated Electrophoresis system (Bio-Rad) with total RNA samples isolated from E. coli culture (a, c) and E. coli spiked milk samples (b, d). RNA isolation was performed using either (a, b) the NucliSENS^® miniMAG^® kit (Biomerieux) or (c, d) the RNeasy Protect Bacteria Mini kit (QIAGEN). Dots underline fluorescence peaks corresponding to the ribosomal RNA.