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Degree of esterification of pectin samples (%)
| Raw material | Extraction conditions | Degree of esterification (%) | ||
|---|---|---|---|---|
| HCl | HNO3 | |||
| Lemon | UAE | 75 °C and 45 min | 51.13 ± 0.19 | 50.51 ± 0.41 |
| MAE | 360 W and 1 min | 51.08 ± 0.08 | 50.65 ± 0.24 | |
| Mandarin | UAE | 75 °C and 45 min | 51.63 ± 0.58 | 51.16 ± 0.27 |
| MAE | 360 W and 1 min | 51.09 ± 0.08 | 51.07 ± 0.85 | |
| Kiwi | UAE | 75 °C and 45 min | 50.75 ± 0.34 | 50.73 ± 0.69 |
| MAE | 360 W and 3 min | 50.95 ± 0.15 | 50.67 ± 0.10 | |
Values are mean of three replicates ± SD
