Table 2.

Antioxidant potential of A. × cornutum and two varieties of A. cepa L. peel extracts determined by ORAC and DPPH method.

Antioxidant Assay	A. × cornutum	A. cepa (Yellow Variety)		A. cepa (Red Variety)
ORAC (Trolox eq)	20.5 ± 0.17 a	12.98 ± 0.29 b	4.64 ± 0.34 c
DPPH (% inhibition)	82.18 ± 1.09 a	65.76 ± 2.97 b	53.43 ± 4.36 c

Results are means ± SD (n = 3). Different superscript letters (a,b,c) indicate a statistically significant difference between three onion waste extracts (p < 0.05) (Data S2).