Research Article
Effect of Yeast Fermentation of Green Coffee Beans on Antioxidant Activity and Consumer Acceptability
Table 1
Change of pH, reducing sugar, and viable cells before and after fermentation.
| Sample | pH | Reducing sugar (mg/mL) | Viable cell count (log CFU/mL) | 0 h | 24 h | 0 h | 24 h | 0 h | 24 h |
| C2 | 5.98 | 5.13 | 0.68 ± 0.01 | 2.57 ± 0.13 | <1.16 ± 0.53 | 7.78 ± 0.70 | F1 | 5.79 | 4.92 | 1.12 ± 0.02 | 2.51 ± 0.12 | 6.50 ± 5.83 | 9.31 ± 0.85 | F2 | 5.93 | 4.52 | 1.28 ± 0.03 | 2.47 ± 0.09 | 6.41 ± 5.62 | 9.25 ± 0.86 | F3 | 5.78 | 5.04 | 1.12 ± 0.01 | 2.67 ± 0.09 | 6.30 ± 5.30 | 9.03 ± 0.81 |
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superscripts within a column meant significant difference at < 0.05 by Fisher’s least significant difference test. |