Table 1.
The TPC and TFC of the selected bamboo extracts dried with different methods.
| Drying Methods | TPC 1 | TFC 2 |
|---|---|---|
| B. multiplex | ||
| Fresh 3 | 5.64 ± 0.09 b | 0.87 ± 0.01 f |
| Sun-drying | 5.09 ± 0.01 d | 1.13 ± 0.00 c |
| Shade-drying | 5.42 ± 0.02 c | 1.26 ± 0.00 b |
| Microwave-drying | 5.44 ± 0.05 c | 1.04 ± 0.01 d |
| Oven-drying | 5.18 ± 0.00 d | 0.89 ± 0.00 e |
| Freeze-drying | 5.74 ± 0.06 a | 1.62 ± 0.01 a |
| B. tuldoides | ||
| Fresh 3 | 5.26 ± 0.01 d | 1.65 ± 0.01 d |
| Sun-drying | 4.31 ± 0.03 f | 1.17 ± 0.00 f |
| Shade-drying | 4.92 ± 0.01 e | 1.41 ± 0.00 e |
| Microwave-drying | 5.91 ± 0.00 a | 2.06 ± 0.00 b |
| Oven-drying | 5.60 ± 0.04 c | 1.69 ± 0.02 c |
| Freeze-drying | 5.84 ± 0.01 b | 2.11 ± 0.00 a |
| B. vulgaris | ||
| Fresh 3 | 4.64 ± 0.05 e | 0.84 ± 0.00 d |
| Sun-drying | 4.24 ± 0.00 f | 0.81 ± 0.00 e |
| Shade-drying | 5.45 ± 0.00 d | 0.85 ± 0.00 d |
| Microwave-drying | 6.17 ± 0.04 a | 1.10 ± 0.01 a |
| Oven-drying | 5.77 ± 0.03 b | 0.94 ± 0.01 c |
| Freeze-drying | 5.58 ± 0.01 c | 0.96 ± 0.00 b |
| D. sublaevigata | ||
| Fresh 3 | 8.26 ± 0.05 b | 0.78 ± 0.00 b,c |
| Sun-drying | 7.38 ± 0.00 d | 0.78 ± 0.00 b |
| Shade-drying | 8.27 ± 0.09 b | 0.77 ± 0.00 c |
| Microwave-drying | 8.20 ± 0.02 b | 0.83 ± 0.00 a |
| Oven-drying | 7.91 ± 0.01 c | 0.84 ± 0.00 a |
| Freeze-drying | 12.59 ± 0.09 a | 0.84 ± 0.00 a |
| G. levis | ||
| Fresh 3 | 3.92 ± 0.00 d | 0.81 ± 0.01 c |
| Sun-drying | 2.69 ± 0.01 f | 0.77 ± 0.01 d |
| Shade-drying | 3.68 ± 0.02 e | 0.84 ± 0.00 b |
| Microwave-drying | 4.60 ± 0.03 b | 0.82 ± 0.01 c |
| Oven-drying | 4.29 ± 0.00 c | 0.84 ± 0.00 b |
| Freeze-drying | 4.78 ± 0.01 a | 0.87 ± 0.01 a |
| S. brachycladum | ||
| Fresh 3 | 4.34 ± 0.09 d | 1.85 ± 0.01 b |
| Sun-drying | 4.23 ± 0.01 e | 0.98 ± 0.00 f |
| Shade-drying | 4.34 ± 0.04 d | 1.31 ± 0.01 e |
| Microwave-drying | 5.01 ± 0.03 c | 1.70 ± 0.00 d |
| Oven-drying | 5.30 ± 0.09 b | 1.74 ± 0.00 c |
| Freeze-drying | 5.61 ± 0.01 a | 2.12 ± 0.01 a |
The values represent the means ± standard deviations of three replicates. Different letters (within a column) indicate significant differences (one-way ANOVA, Duncan’s multiple comparison test, p < 0.05). 1 TPC was expressed as mg gallic acid equivalent to 1 g of dried sample (mg GAE/g). 2 TFC was expressed as the mg quercetin equivalent to 1 g of dried sample (mg QE/g). 3 Fresh sample was expressed as control variable.