Figure 7. Depictive comparative assessment of the antimicrobial efficacy of various detergents against gram-negative Pseudomonas aeruginosa bacteria, as compared with ceftazidime (30 μg). The zone of inhibition of ceftazidime was set as a reference (lane 24; horizontal straight line), and that for absolute methanol (MetOH) is shown in lane 23, and all values of the zones of inhibition at undiluted concentrations of disinfectant/sterilizer/antiseptic were compared against those references (Lanes 23 and 24). Lanes 1 – 5 represent Class A (Daily Mouthwash); Lanes 6 – 14 represent Class B (Toilet Bowl Cleaners/Bleaches/Sanitizers); Lanes 15 – 19 represent Class C (Surface and Floor Mopping Cleaners/Detergents); and Lanes 20 – 22 represent Class D (Hand and Body Wash Gels). This comparative analysis allows descriptive visualization of the antimicrobial effectiveness relative to ceftazidime, on one hand, and various classes (A – D), on the other hand, thereby showing the most effective class and/or detergent within a given category against a specific type of bacteria. The number of experimental observations is n = 3, * P < 0.05, ** P < 0.01, *** P < 0.001, as compared with either ceftazidime or absolute MetOH. NI = No inhibition

From

The Immunomodulatory, Antimicrobial and Bactericidal Efficacy of Commonly Used Commercial Household Disinfectants, Sterilizers and Antiseptics in Vitro: Laboratory Assessment of Anti-Inflammatory Infection Control Mechanisms and Comparative Biochemical Analysis of the Microbial Growth of Gram-Negative Bacteria

Niveen M. Masri, Lama B. Hanbali, John J. Haddad

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