Agro-ecological zones | TPC (mg/g GAE) | TFC (mg/g RUTE) | TTC (mg/g TAE) | DPPH inhibition (%) | FRAP activity (absorbance) |
---|---|---|---|---|---|
Lari | 14.91 ± 1.17 a | 42.16 ± 4.03 ns | 30.4 ± 2.53 a | 92.47 ± 2.92 a | 0.88 ± 0.08 a |
Kiambaa | 57.47 ± 8.21 c | 32.77 ± 3.51 ns | 8.51 ± 1.10 c | 81.60 ± 2.50 b | 0.68 ± 0.04 b |
Juja | 24.52 ± 1.54 b | 29.69 ± 8.42 ns | 19.19 ± 1.14 b | 61.23 ± 5.71 c | 0.51 ± 0.06 c |
Thika | 53.52 ± 7.86 c | 34.20 ± 2.13 | 4.95 ± 1.99 c | 84.70 ± 1.43 b | 0.27 ± 0.03 d |
p-value | 0.0001 | 0.476 | 0.0003 | 0.0002 | 0.0001 |