Fig. 6
From: Rapid detection of Escherichia coli in beverages using genetically engineered bacteriophage T7
Mean gray value of fluorescent images of E. coli BL21 102 CFU/ml and 103 CFU/ml 4 h enrichment in TSB (a), coconut water (b), and apple juice (c) after 15- and 30-min infection with bacteriophage T7-ALP. Treatments with different letters are significantly different (P < 0.05). Error bars indicate ± standard deviation of means