In vitro activities of cellulase and ceftazidime, alone and in combination against Pseudomonas aeruginosa biofilms

Table 2 The effects of serial dilutions of cellulase on reduction of mature biofilms of P. aeruginosa strains

^aBacterial strain	% of biofilm forming reduction by cellulase concentration (U/mL) of
^aBacterial strain	0.01	0.03	0.07	0.15	0.31	0.62	1.25	2.5	5	10	No/inactivated enzyme
PAO1	0.2	0.2	0.2	0.3	0.2	3	26.3	76.2	78.6	77.3	0
PA1	0.2	0.2	0.3	0.4	0.3	2.9	10.8	72.1	72.7	73.1	0
PA2	0.2	0.2	0.2	0.2	0.5	3.9	17.4	78.4	77.9	78.3	0

^a PAO1 is a laboratory reference strain of P. aeruginosa and PA1 and PA2 are two clinical isolates of P. aeruginosa that were recovered from the patients with burn wound infections

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