Table 2.
Effect of ultrasound assisted extraction process parameters (time and ultrasound amplitude) and CE on antioxidant activities and total phenolic content (TPC) of L. papillosa.
| UAE parameters |
Biological activities |
|||||
|---|---|---|---|---|---|---|
| Amplitude | Time (min) | DPPH | ABTS | FRAP | TPC | |
| 5 | 50.35±1.87a | 106.85±1.92a | 23.61±3.46a | 71.56±12.14a | ||
| 10% | 10 | 96.76±3.18b | 202.05±1.57b | 63.91±4.19b | 196.82±4.48b | |
| 15 | 105.69±3.02c | 238.69±2.23c | 72.47±3.13c | 212.03±3.03b | ||
| 5 | 67.33±0.44df | 138.71±0.53d | 38.18±2.17d | 103.77±3.96c | ||
| UAE | 30% | 10 | 57.36±0.89e | 116.80±2.29e | 30.25±0.79e | 82.79±4.79a |
| 15 | 66.96±4.34df | 132.79±1.56f | 37.87±2.16d | 100.68±0.70c | ||
| 5 | 68.18±2.27df | 145.30±1.56 g | 41.30±3.71d | 137.19±0.70d | ||
| 50% | 10 | 72.10±2.27f | 155.17±0.47 h | 42.44±2.62d | 144.54±0.08d | |
| 15 | 63.22±0.30de | 148.08±1.10 g | 42.89±2.72d | 102.29±6.90c | ||
| CE | 54.73±0.58ae | 160.73±1.37ı | 20.50±0.78a | 169.21±7.48e | ||
Data are expressed as average±standard deviation (n = 3); The different letters in each row indicate statistical differences (p < 0.05). Antioxidant properties (DPPH, ABTS and FRAP) and total phenolic content (TPC) are expressed as μmol Trolox/100 g and mg GAE/100 g, respectively.