Table 3.
The antioxidant activity of the L. sericea total extract (LSTE), the intact fractions (F1 and F2), and those of their corresponding silver nanoparticles (LSTE-, F1-, and F2-AgNPs) using three assays (ABTS, FRAP, and FC). The percentage phenolic content (FC) of the silver nanoparticles is also presented in the last column of the table.
| Items | ABTS (mM TE/g) | FRAP (mM AAE/g) | FC (mM GAE/g) | FC % (AgNPs) |
|---|---|---|---|---|
| LSTE | 814.18 ± 1.80 a | 1113.20 ± 6.70 a | 602.60 ± 6.10 a | 100 |
| LSTE-AgNPs | 499.65 ± 1.50 b | 1438.50 ± 5.60 b | 578.27 ± 7.70 b | 57.8 |
| F1 | 818.20 ± 7.70 a | 1834.00 ± 4.70 c | 889.60 ± 6.00 c | 100 |
| F1-AgNPs | 319.18 ± 1.80 c | 1361.60 ± 6.70 d | 175.25 ± 2.60 d | 17.5 |
| F2 | 861.90 ± 5.30 d | 1166.00 ± 2.10 e | 685.70 ± 6.70 e | 100 |
| F2-AgNPs | 583.22 ± 7.30 e | 326.20 ± 2.20 f | 357.80 ± 5.30 f | 35.7 |
The results are expressed as mean ± SD of three different independent experiments (n = 3). Results not sharing a common superscript alphabet (a–f) are significantly different (p < 0.01).