| Contents | Concentration of fermented Oenothra biennis juice (%) | ||||
|---|---|---|---|---|---|
| 0 | 5 | 10 | 15 | ||
| pH | 5.37±0.02a1) | 5.35±0.01a | 5.27±0.01b | 5.23±0.02c | |
| Titratable acidity (%) | 0.58±0.01b | 0.59±0.01b | 0.59±0.01ab | 0.61±0.01a | |
| Saccarinity (oBrix) | 50.50±0.50a | 50.33±0.58ab | 50.00±0.01ab | 49.67±0.12b | |
| Free sugar (mg%) | Glucose | 4.97 | 11.81 | 16.88 | 25.90 |
| Fructose | 44.27 | 10.91 | 14.85 | 26.03 | |
| Sucrose | ND2) | 41.56 | 46.64 | 47.46 | |
| Maltose | ND | ND | ND | ND | |
| Color | L | 24.44±0.01b | 23.96±0.01d | 24.08±0.00c | 24.50±0.03a |
| a | 8.76±0.03a | 6.67±0.02b | 6.62±0.06b | 5.85±0.07c | |
| b | 5.53±0.01a | 4.50±0.01c | 4.16±0.01d | 4.95±0.05b | |
| DPPH radical scavenging activity (%) | 25.66±0.25c | 31.83±1.30b | 36.34±1.30b | 39.21±1.76a | |
| TBARS (%) | 19.27±0.25c | 21.89±0.25b | 23.46±0.67ab | 24.66±1.72a | |
| Total bacteria (CFU/g) | 3.35±0.09b | 3.52±0.08ab | 3.55±0.06ab | 3.70±0.20a | |
| Coliform bacteria (CFU/g) | ND | ND | ND | ND | |