TABLE 2.
Samples | Avg no. of CFU g−1 (SD)a
|
|
---|---|---|
With no dispersion of attached bacteria by sonication | After sonication of samplesb | |
Unchlorinated | 3.7 × 104 (4.0 × 104) | 2.0 × 107 (0.74 × 107) |
Chlorinated | 1.3 × 101 (1.4 × 101) | 8.3 × 103 (3.7 × 103) |
Each value in parentheses indicates the standard deviation of three replicates.
Sonication was performed just before pour plating of the samples.