Table 9.

Beta lactamase assays in the presence of permeabilizer (thymol) and natural beta lactamase inhibitor (quercetin) for irradiated and non-irradiated Pseudomonas aeruginosa₈ / Escherichia coli₂

Conc.	control	Pseudomonas aeruginosa 8 / Escherichia coli 2
		aCefoperazone		aCefoperazone + thymol		aCefoperazone +thymol+quercetin
		Before	After	Before	After	Before	After
128/64	0.271/0.273	0.123 ± 0.001/ 0.148 ± 0.001	0.142 ± 0.001/ 0.161 ± 0.002	0.037 ± 0.002/ 0.049 ± 0.006	0.044 ± 0.0006/ 0.053 ± 0.002	0.196 ± 0.002/ 0.215 ± 0.001	0.211 ± 0.0006/ 0.221 ± 0.001
64 /32	0.263 /0.263	0.119 ± 0.0006/ 0.139 ± 0.002	0.133 ± 0.003/ 0.160 ± 0.001	0.030 ± 0.001/ 0.048 ± 0.001	0.040 ± 0.001/ 0.050 ± 0.0005	0.183 ± 0.003/ 0.206 ± 0.001	0.203 ± 0.001/ 0.213 ± 0.0006
32/16	0.256/0.258	0.115 ± 0.001/ 0.128 ± 0.0006	0.130 ± 0.0006/ 0.148 ± 0.002	0.02 ± 0.001/ 0.045 ± 0.001	0.039 ± 0.0006/ 0.048 ± 0.002	0.179 ± 0.001/ 0.197 ± 0.001	0.20 ± 0.006/ 0.203 ± 0.001

Control = Cefoperazone antibiotic in a solution of B-CHR-TMB

^a Mean results of triplicate experiments