Table 2.

Ion counts and quantity of the antioxidant compounds of the main fractions of red onion extract.

Fraction Number	Main Compound	Ion Count	Quantity (mg/fraction)
7	Protocatechuic acid	1.8 × 105	3.05
	Quercetin-3,4′-diglucoside	0.5 × 103	0.14
21	Quercetin-3,4′-diglucoside	3.2 × 105	6.19
	Quercetin-4′-glucoside	1.2 × 104	0.35
	Cyanidin-3-glucoside	3.1 × 105	3.30
31	Quercetin-3,4′-diglucoside	3.1 × 105	6.00
	Quercetin-4′-glucoside	3.2 × 105	6.81
	Cyanidin-3-glucoside	1.2 × 105	1.42
48	Quercetin	2.08 × 105	2.29