Table 2.
Antioxidant, anti-inflammatory, α-glucosidase, and PTP1B inhibitory activities of ethanol extract and fractions from the fruits of Livistona chinensis.
| Extract and fractions | IC50 (μg/mL)a | ||||
|---|---|---|---|---|---|
| DPPH scavenging activity | ABTS scavenging activity | NO production anti-inflammatory effect | α-Glucosidase inhibitory effect | PTP1B inhibitory effect | |
| Ethanol extract | 47.00 ± 0.47 | 36.45 ± 1.31 | 111.63 ± 1.40 | 175.30 ± 2.59 | 10.18 ± 1.10 |
| Petroleum ether fraction | >300 | >300 | — | — | — |
| Dichloromethane fractions | 146.47 ± 1.42 | 18.96 ± 0.28 | 59.19 ± 0.93 | 133.70 ± 4.82 | 42.98 ± 0.42 |
| Ethyl acetate fraction | 51.52 ± 0.92 | 16.29 ± 0.99 | 62.87 ± 0.75 | 167.10 ± 3.70 | 24.10 ± 1.30 |
| Butyl alcohol fraction | 4.23 ± 0.11 | 8.70 ± 0.50 | — | 8.27 ± 0.88 | 0.017 ± 0.003 |
| Aqueous fraction | 160.03 ± 1.70 | 73.80 ± 2.12 | >300 | >300 | 198.90 ± 1.64 |
| Ascorbic acidb | 6.18 ± 0.18 | 8.96 ± 0.22 | — | — | — |
| Indomethacinc | — | — | 8.01 ± 0.08 | — | — |
| Acarbosed | — | — | — | 39.60 ± 0.66 | — |
| Oleanolic acide | — | — | — | — | 13.06 ± 0.28 |
aThese data are expressed as the mean value ± SD of triplicate experiments (n = 3). bPositive control (DPPH and ABTS scavenging activities). cPositive control (anti-inflammatory effect). dPositive control (α-glucosidase inhibitory effect). ePositive control (PTP1B inhibitory effect).