Table 4: Bacteria isolated from bottled water at different storage duration (days).

Bacteria Genera Number of Samples with Storage Duration, HPC/ml (%)
≤30 31-60 61-90 91-120 121-150 151-180 >180 Total
Escherichia coli 2 (0.5) 4 (1.0) 3 (0.8) 4 (0.8) 2 (0.5) 1 (0.2) 2 (0.5) 18 (4.5)
Staphylococcus spp. 4 (1.0) 9 (2.2) 10 (2.5) 7 (1.8) 4 (1.0) 1 (0.2) 3 (0.8) 38 (9.5)
Stenotrophomonas spp. 8 (2.0) 15 (3.8) 9 (2.2) 8 (2.0) 5 (1.2) 1 (0.2) 12 (3.0) 58 (14.5)
Corynebacterium spp. 15 (3.8) 14 (3.5) 18 (4.5) 10 (2.5) 7 (1.8) 3 (0.8) 7 (1.8) 74 (18.5)
Flavobacterium spp. 18 (4.5) 21 (5.2) 17 (4.2) 9 (2.2) 9 (2.2) 4 (1.0) 9 (2.2) 87 (21.8)
Enterobacter spp. 21 (5.2) 31 (7.8) 24 (6.0) 15 (3.8) 8 (2.0) 3 (0.8) 8 (2.0) 110 (27.5)
Micrococcus spp. 18 (4.5) 39 (9.8) 26 (6.5) 21 (5.2) 11 (2.8) 2 (0.5) 6 (1.5) 123 (30.8)
Pseudomonas spp. 27 (6.8) 35 (8.8) 32 (8.0) 16 (4.0) 15 (3.8) 4 (1.0) 9 (2.2) 138 (34.5)
Acinetobacter spp. 32 (8.0) 36 (9.0) 36 (9.0) 27 (6.8) 11 (2.8) 2 (0.5) 9 (2.2) 153 (38.2)
Bacillus spp. 4 (10.5) 57 (14.2) 61 (15.2) 42 (10.5) 21 (5.2) 6 (1.5) 18 (4.5) 247 (61.8)