Table 4
Antioxidant activities of onion flesh treated by SHS at various temperature

Type Antioxidant activities TPC (mg of GAE/kg)
DPPH (%) ABTS (%) FRAP (Absorbance)
Control 37.85±0.12e 3.99±0.62a 0.06±0.01a 3.92±0.63a
SHS treatment T100 39.23±0.52d 4.34±0.35a 0.06±0.00ab 1.83±0.29d
T150 38.99±0.20d 4.38±0.20a 0.06±0.00ab 2.75±0.25c
T200 43.23±0.10b 3.77±1.44a 0.06±0.00ab 2.67±0.38c
T250 45.12±0.12a 3.86±0.08a 0.05±0.00ab 3.92±0.94b
T300 41.45±0.15c 4.49±0.13a 0.05±0.01ab 4.92±1.56a