Table 2 Total carotenoids and antioxidant activity of extract obtained from carrot rejects in study 1.
Solvent/solvent mixture | Maximum wavelength for carotenoid determination (nm) | Total Carotenoid content (mg/100 g DW) | ABTS assay (mM Trolox/100 g DW) | FRAP assay (mM Trolox/100 g DW) | DPPH (mM Trolox/100 g DW) |
---|---|---|---|---|---|
Ethanol | 452 | 98.34 ± 4.04a | 745 ± 17.38d | 596.21 ± 97.44a | 135.43 ± 21.73f |
Ethyl acetate | 454 | 154.95 ± 0.94d | 639.44 ± 25.46b | 648.89 ± 77.14c | 153.21 ± 18.30g |
Acetone | 454 | 149.09 ± 4.04b | 617.22 ± 41.94a | 619.26 ± 19.75b | 110.38 ± 12.20e |
Hexane | 450 | 151.59 ± 2.66c | 991.11 ± 20.46g | 2011.85 ± 98.76g | 47.35 ± 28.31a |
Hexane/acetone (1:1) | 454 | 162.69 ± 3.52e | 811.67 ± 15.18f | 1794.57 ± 77.14d | 93.41 ± 12.44d |
Hexane/ethanol (1:1) | 452 | 172.88 ± 3.07h | 996 ± 26.38h | 2234.48 ± 99.42h | 58.66 ± 11.11b |
Hexane/ethyl acetate (1:1) | 454 | 168.52 ± 2.89f | 650.55 ± 41.75c | 1882.22 ± 29.63e | 77.25 ± 25.69c |
Hexane/acetone/ethanol (2:1:1) | 450 | 170.05 ± 1.66g | 789.44 ± 25.09e | 1935.31 ± 52.26f | 110.38 ± 22.91e |