TABLE 3.
Total phenolic content (TPC), total flavonoid content (TFC), total antioxidant activity (TAA), DPPH• radical scavenging activity, iron chelating power (FeCP), and H2O2 scavenging activity of Mentha species growing in different regions of Algeria.
| Sample 1 | TPC 2 , 3 (mg GAE/100 g) | TFC 2 , 3 (mg QE/100 g) | TAA 2 , 3 (mg GAE/100 g) | DPPH 3 (%) | FeCP 3 (%) | H2O2 3 (%) |
|---|---|---|---|---|---|---|
| MP1 | 4097.5 ± 60.1b | 199.0 ± 18.7c | 1650.0 ± 141.4b | 71.6 ± 2.4a | 85.9 ± 2.7b,c | 99.1 ± 0.7a |
| MP2 | 3782.5 ± 59.1c | 289.4 ± 2.6b | 1650.0 ± 176.8b | 51.0 ± 2.5c | 86.0 ± 4.6b | 95.2 ± 2.7e |
| MP3 | 1372.5 ± 74.2f | 177.4 ± 0.2d | 675.0 ± 35.4d | 10.1 ± 3.2e | 90.3 ± 0.3a | 94.6 ± 0.5e |
| MP4 | 5250.0 ± 190.9a | 175.1 ± 10.0d | 1000.0 ± 70.7c,e | 20.6 ± 1.4d | 88.3 ± 0.5a,b | 82.2 ± 2.7d |
| MP5 | 2695.0 ± 346.5e | 341.5 ± 2.8a | 1900.0 ± 35.4a | 65.6 ± 0.7b | 77.0 ± 1.4d | 96.7 ± 0b,c |
| MP6 | 3032.5 ± 208.6d | 296.1 ± 5.5b | 1025.0 ± 35.4c | 24.6 ± 2.2d | 84.1 ± 2.7c | 97.7 ± 2.6a,b |
| MR1 | 1950.0 ± 187.4d | 291.3 ± 15.9c | 1075.0 ± 106.1c | 39.5 ± 1.5c | 55.8 ± 7.1b | 95.0 ± 4.5c |
| MR2 | 3020.0 ± 339.4c | 329.9 ± 11.5b | 1425.0 ± 106.1b | 47.8 ± 2.2b | 55.5 ± 1.3b | 98.0 ± 1.5a,b |
| MR3 | 2632.5 ± 81.3c | 288.6 ± 2.0c | 1425.0 ± 106.1b | 58.6 ± 1.5a | 48.6 ± 5.3b | 96.3 ± 3.2a,b |
| MR4 | 3345.0 ± 509.1a,b | 197.4 ± 1.6d | 675.0 ± 35.4d | 25.2 ± 1.5d | 32.3 ± 1.5c | 82.2 ± 1.2d |
| MR5 | 3547.5 ± 279.3a | 373.8 ± 6.7a | 1825.0 ± 176.8a | 60.1 ± 2.4a | 49.5 ± 1.9b | 99.0 ± 0.7a |
| MR6 | 3567.5 ± 194.5a | 289.4 ± 1.9c | 1500 ± 0b | 30.4 ± 3.9d | 87.4 ± 1.4a | 95.2 ± 0.1b,c |
| MS1 | 2092.5 ± 95.5d | 147.4 ± 1.6b | 425.0 ± 35.4c | 20.0 ± 0.7c | 18.6 ± 3.6a,b | 97.9 ± 2.5a,b |
| MS2 | 772.5 ± 31.8e | 74.6 ± 3.0e | 125.0 ± 35.4d | 12.1 ± 1.0c | 16.9 ± 2.9b | 60.7 ± 2.1c |
| MS3 | 2640.0 ± 141.4c | 152.3 ± 3.2b | 600 ± 27b | 39.4 ± 2.2b | 21.5 ± 6.6a | 98.6 ± 0.9a,b |
| MS4 | 7852.5 ± 265.2a | 274.9 ± 3.3a | 1025.0 ± 35.4a | 52.0 ± 2.1a | 16.5 ± 1.1b | 96.1 ± 3.0b |
| MS5 | 4665.0 ± 190.9b | 143.7 ± 9.2c | 625.0 ± 106.1b | 60.4 ± 1.0a | 16.6 ± 2.8b | 96.5 ± 2.2b |
| MS6 | 2852.5 ± 364.2c | 122.0 ± 1.8d | 450 ± 18c | 39.8 ± 2.2b | 18.0 ± 1.8a,b | 98.9 ± 0.7a |
MP1 to MP6 refer to Mentha pulegium samples collected from the following localities: 1-El-Ghaba; 2-Thybyatine; 3-Tizi-Ouzou; 4-Khemis–Miliana ; 5-Tichy; and 6-Chemini. MR1 to MR6 refer to the samples of Mentha rotundifolia collected in:1-El-Ghaba; 2-Thybyatine; 3-Tizi-Ouzou; 4-Khemis–Miliana ; 5-Tajboujth; and 6-Chemini. MS1 to MS2 refer to Mentha spicata samples collected in: 1-El-Ghaba; 2-Thybyatine; 3-Tizi-Ouzou; 4-Khemis–Miliana ; 5-Tichy; and 6-Tajboudjth.
GAE: gallic acid equivalents, QE: quercetin equivalent.
The values not bearing the same letters within samples of the same species collected in different regions are significantly different (p ≤ 0.05), and the results are ranked in descending order; a > b > c > d > e > f. The numbers written in bold indicate the highest measured values.