Figure 3
DNA preparations made by STEM1 and the conventional method. M: DNA marker; 1–7: DNA prepared by the STEM1; 8–14: DNA prepared by the conventional method. Lanes 1 and 8, 2 and 9, 3 and 10, 4 and 11, 5 and 12, 6 and 13, 7 and 14: DNA prepared from the spiked blood samples containing 3x105, 3x104, 3x103, 3x102, 30 , 3, 0 CFU/ml of Salmonella Typhi, respectively.