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Comparison between conventional and microwave-assisted extraction of herbacetin diglucoside using 0.1 M NaOH. nd: not detected. Values are the mean ± RSD of three independent replicates and different letters (a, b, c) indicate significant differences between conditions (p < 0.05).
| Conventional heat reflux extraction | MAE 150 W | |||||
|---|---|---|---|---|---|---|
| Time (min) | 1 | 6 | 15 | 30 | 60 | 6 |
| HDG (mg/g DW) | nd | nd | nd | 1.90 ± 0.28 a | 2.60 ± 0.48 b | 5.76 ± 0.47 c |
