Table 1 Azo-reducing activity of fresh stool samples against 0.06Â M Brilliant Black
Sample number | Azo-reducing activity grade | Time to full decolorization (h) | % Decolorization at the end of the experiment (10 h) expressed as mean (± SD)% |
|---|---|---|---|
S9 | Grade zero (no degradation) | > 10 | 0 (± 1.8)% |
S4 | > 10 | 0 (± 0.8)% | |
S15 | > 10 | 0 (± 1.4)% | |
S5 | > 10 | 2.7 (± 1.2)% | |
S12 | > 10 | 8.6 (± 1.1)% | |
S3 | > 10 | 9.5 (± 2.6)% | |
S10 | Grade one (partial degradation) | > 10 | 35.6 (± 0.77)% |
S14 | > 10 | 57.2 (± 0.55)% | |
S2 | Grade two (complete degradation) | ~ 9.8 | ~ 100% (by projection) |
S13 | 9 | 100% | |
S1 | 8–9 | 100% | |
S8 | 7–8 | 100% | |
S6 | 7 | 100% | |
S16 | 7 | 100% | |
S11 | 6–7 | 100% | |
S7 | 5 | 100% |