Table 5. ABTS radical scavenging effects of essential oils extracted from Citrus × natsudaidai peels according to ripening stages

Immaturity Maturity Overripe Ascorbic acid
ABTs EC50 (mg/mL) 22.43 ± 0.45 26.82 ± 0.48 20.43 ± 0.37 0.066 ± 0.001
ABTS: 2,2′-azino-bis(3-ethylbenz-thiazoline-6-sulfonic acid).