Table 3.
Inhibitory effects of the fermented rice extracts on mitomycin C-induced mutagenesis in E. coli PQ37 cells
| Rice extract† | β-galactosidase activity (unit) | Alkaline phosphatase activity (unit) | R factor | Antimutagenicity‡ (%) |
|---|---|---|---|---|
| Control (–) | 6.71 ± 0.57 | 40.37 ± 0.97 | 0.17 | 100 |
| Control (+) | 19.19 ± 0.24 | 14.69 ± 1.07 | 1.31 | 0 |
| UBRE1) | 18.18 ± 1.43 | 15.77 ± 1.10 | 1.15 | 14 |
| MRRE | 16.34 ± 1.99 | 19.62 ± 1.27 | 0.83 | 42.1 |
| PLRE | 14.17 ± 0.39 | 16.88 ± 1.02 | 0.84 | 41.2 |
| CSRE | 9.55 ± 0.39 | 14.16 ± 1.15 | 0.67 | 56.1 |
| ABRE | 15.35 ± 0.93 | 15.97 ± 0.91 | 0.96 | 30.7 |
†See footnote to Table 2. ‡Values represent percent inhibition of cells loaded simultaneously with mitomycin C and rice extracts compared to maximum values from cells stimulated with only mitomycin C treatment (positive control).