Treatment | Concentration (μg/g) | Antimicrobial activity against E. coli (104 cfu/g) ± SE at time (day) | Average ± SE | ||
---|---|---|---|---|---|
3 | 7 | 10 | |||
Control+ | 0.00 | 295.00 ± 2.89 | ˃ 300 | ˃ 300 | ˃ 300 |
Control− | 0.00 | 137.50 ± 1.44 | 295.00 ± 2.89 | 298.5 ± 0.87 | 243.67ed ± 53.09 |
Ch | 1000 | 75.00 ± 2.89 | 132.50 ± 1.44 | 172.50 ± 1.44 | 126.67d ± 28.30 |
2500 | 62.50 ± 1.44 | 85.00 ± 2.89 | 105.00 ± 2.89 | 84.17c ± 12.28 | |
Ch-AgNP1 | 1000 | 8.50 ± 0.29 | 14.50 ± 0.29 | 21.00 ± 0.58 | 14.67c ± 3.61 |
2500 | 1.50 ± 0.29 | 11.00 ± 0.58 | 14.50 ± 0.29 | 9.00b ± 3.88 | |
Ch-AgNP2 | 1000 | 5.50 ± 0.29 | 12.50 ± 0.87 | 16.50 ± 0.87 | 11.50b ± 3.21 |
2500 | 2.00 ± 0.00 | 4.50 ± 0.29 | 11.00 ± 1.73 | 5.83a ± 2.68 | |
Ch-AgNP3 | 1000 | 1.50 ± 0.29 | 9.50 ± 0.29 | 13.50 ± 0.87 | 8.17a ± 3.53 |
2500 | 1.50 ± 0.29 | 2.50 ± 0.29 | 7.00 ± 0.58 | 3.67a ± 1.69 | |
Mean | 85.25a | 121.4b | 129.75c | Between treatment for 1000 = 2.38 | |
LSD0.05 | Between time = 1.23 | Between treatment for 2500 = 2.60 |