Table 1. Bacterial enumeration and presence of urease.

Group	CFU/g	Urease
Negative control	0	−
Positive control	58.9±7.2	+
#1	22.1±3.3*	+
#2	50.5±5.5	+
#3	41.7±4.9*	+
#4	45.1±7.2	+

*, significant differences between sample and PBS at <0.05 level. Bacteria were counted 2 weeks after infection. Data are given as CFU/g ×10³. −, no activity; +, activity.