Table 2.
Total phenolic acid (TPC) contents, contents of total flavonoids (TFC) and 1,1-Diphenyl-2-picrylhydrazyl (DPPH) scavenging activity of 49 Chinese propolis.
| Samples No. | TPC (mg/g, GAE) | TFC (mg/g, QE) | DPPH Scavenging Activity (IC50,μg/mL) | Samples No. | TPC (mg/g, GAE) | TFC (mg/g, QE) | DPPH Scavenging Activity (IC50,μg/mL) |
|---|---|---|---|---|---|---|---|
| S1 | 404.47 ± 10.72 | 361.59 ± 8.54 | 90.51 ± 0.89 | S26 | 232.59 ± 3.18 | 146.63 ± 3.33 | 294.04 ± 10.26 |
| S2 | 249.95 ± 4.52 | 162.39 ± 13.93 | 113.19 ± 5.93 | S27 | 199.70 ± 3.83 | 75.43 ± 4.19 | 216.06 ± 3.30 |
| S3 | 223.12 ± 1.69 | 110.56 ± 1.24 | 101.21 ± 1.87 | S28 | 275.54 ± 2.91 | 167.16 ± 6.34 | 83.47 ± 3.55 |
| S4 | 248.62 ± 2.22 | 135.56 ± 4.49 | 122.88 ± 1.73 | S29 | 208.31 ± 2.45 | 77.76 ± 4.67 | 171.61 ± 8.54 |
| S5 | 529.49 ± 4.10 | 427.56 ± 17.03 | 124.35 ± 1.36 | S30 | 231.11 ± 2.03 | 141.17 ± 2.84 | 112.14 ± 5.71 |
| S6 | 556.3 ± 5.55 | 454.92 ± 32.67 | 113.10 ± 4.67 | S31 | 170.67 ± 0.94 | 106.06 ± 1.34 | 171.52 ± 8.21 |
| S7 | 236.4 ± 3.17 | 102.50 ± 1.17 | 92.45 ± 8.31 | S32 | 219.01 ± 2.30 | 204.76 ± 4.05 | 233.6 ± 10.59 |
| S8 | 257.15 ± 3.76 | 191.19 ± 1.55 | 104.17 ± 6.69 | S33 | 232.35 ± 5.43 | 210.53 ± 4.05 | 153.93 ± 3.81 |
| S9 | 236.92 ± 6.38 | 205.32 ± 6.12 | 164.27 ± 7.47 | S34 | 242.33 ± 1.11 | 149.68 ± 2.55 | 119.5 ± 4.51 |
| S10 | 276.21 ± 4.99 | 190.72 ± 12.24 | 108.17 ± 5.66 | S35 | 228.94 ± 2.76 | 192.23 ± 6.62 | 165.23 ± 4.23 |
| S11 | 272.91 ± 3.51 | 186.96 ± 5.35 | 73.56 ± 2.61 | S36 | 223.90 ± 2.22 | 216.31 ± 4.29 | 241.85 ± 11.63 |
| S12 | 210.23 ± 4.14 | 205.95 ± 1.68 | 308.11 ± 6.36 | S37 | 228.39 ± 2.45 | 223.83 ± 1.15 | 269.08 ± 1.94 |
| S13 | 242.81 ± 2.60 | 197.64 ± 2.02 | 124.54 ± 5.94 | S38 | 197.97 ± 1.84 | 203.46 ± 6.06 | 303.87 ± 6.00 |
| S14 | 237.32 ± 3.06 | 179.05 ± 7.48 | 124.16 ± 9.21 | S39 | 252.31 ± 5.44 | 167.96 ± 4.77 | 100.20 ± 1.46 |
| S15 | 246.23 ± 5.42 | 159.25 ± 1.50 | 109.00 ± 3.77 | S40 | 231.12 ± 4.63 | 143.61 ± 5.02 | 132.98 ± 3.55 |
| S16 | 254.92 ± 5.02 | 143.97 ± 3.06 | 76.06 ± 3.15 | S41 | 205.82 ± 5.02 | 208.93 ± 3.23 | 404.56 ± 11.9 |
| S17 | 216.69 ± 2.12 | 158.80 ± 3.48 | 133.82 ± 2.93 | S42 | 150.83 ± 2.75 | 70.08 ± 4.15 | 354.31 ± 5.12 |
| S18 | 256.96 ± 3.37 | 163.24 ± 5.62 | 122.64 ± 9.30 | S43 | 234.55 ± 5.82 | 126.88 ± 7.89 | 146.45 ± 6.61 |
| S19 | 217.37 ± 3.40 | 133.04 ± 4.02 | 352.75 ± 9.75 | S44 | 268.44 ± 2.77 | 194.49 ± 4.98 | 124.45 ± 6.19 |
| S20 | 139.92 ± 1.90 | 63.75 ± 1.92 | 432.08 ± 6.42 | S45 | 312.01 ± 4.34 | 207.96 ± 9.33 | 132.46 ± 4.53 |
| S21 | 223.74 ± 1.30 | 100.90 ± 0.42 | 197.34 ± 6.78 | S46 | 252.51 ± 1.40 | 149.41 ± 9.75 | 91.01 ± 9.85 |
| S22 | 302.55 ± 6.12 | 219.2 ± 2.56 | 87.14 ± 7.38 | S47 | 251.63 ± 0.80 | 172.76 ± 9.53 | 125.20 ± 5.37 |
| S23 | 178.37 ± 0.89 | 53.45 ± 3.41 | 277.77 ± 10.99 | S48 | 274.21 ± 2.41 | 134.62 ± 3.64 | 71.19 ± 5.31 |
| S24 | 240.99 ± 4.03 | 171.38 ± 6.69 | 124.92 ± 6.32 | S49 | 247.34 ± 4.43 | 173.99 ± 7.50 | 113.08 ± 6.15 |
| S25 | 188.86 ± 1.80 | 73.51 ± 9.97 | 309.97 ± 10.23 |
Data are shown as the mean ± SD (n = 3). GAE, gallic acid equivalent; QE, quercetin equivalent.