Table 1. The inhibition zone of Miang extracts tested against Bacillus cereus TISTR 747, Escherichia coli ATCC 22595, Salmonella Typhimurium TISTR 292 and Streptococcus mutans DMST 18777.
| Sample | Zone of Inhibition | |||||||
|---|---|---|---|---|---|---|---|---|
| Non-neutralized extracts | Neutralized extracts | |||||||
| YTL | MTL | NFP | FFP | YTL | MTL | NFP | FFP | |
| pH | 4.3 | 4.6 | 4.3 | 4.0 | 7.0 | |||
| Bacillus cereus TISTR 747 (mm) | 5.88 ± 0.63c | 3.00 ± 1.00d | 8.75 ± 0.25a | 7.00 ± 0.00b | - | - | 7.75 ± 0.75b | 5.25 ± 1.25c |
| Escherichia coli ATCC 22595 (mm) | - | - | 4.25 ± 0.75b | 5.50 ± 0.50a | - | - | 4.75 ± 0.25b | 2.75 ± 0.25c |
| Salmonella Typhimurium TISTR 292(mm) | - | - | 6.50 ± 0.50c | 6.00 ± 1.00c | - | - | 8.25 ± 0.75a | 7.75 ± 0.25b |
| Streptococcus mutans DMST 18777 (mm) | 4.00 ± 1.00e | 3.00 ± 0.50e | 13.75 ± 1.25a | 12.00 ± 0.50b | 4.50 ± 0.50e | 4.00 ± 0.00e | 9.00 ± 0.00c | 6.75 ± 0.25d |
YTL: Young tea leaves (109.5 mg/mL), MTL: Mature tea leaves (100.5 mg/mL), NFP: Non-filamentous fungi growth based process fermented Miang (74.5 mg/mL), FFP: Filamentous fungi-growth based process fermented Miang (91.5 mg/mL). Different alphabets represent significant differences (p<0.05, Tukey’s test).