FIGURE 6.
(a) Black tea, peach juice, hawthorn juice, and tap water artificially contaminated with P. aeruginosa, with uncontaminated samples as controls. Using a blue‐light transilluminator, fluorescence values are displayed equal to the experimental group minus the control group. (b) Fluorescence value and brightness of 6.9 cfu/ml–6.9 × 105 cfu/ml P. aeruginosa in black tea. (c) Detection of P. aeruginosa in denaturing polyacrylamide gel. M: DNAzyme was completely cleaved by P. aeruginosa. (d) PCR amplification results of 69 cfu/ml–6.9 × 105 cfu/ml P. aeruginosa