The extraction method used was adapted from the described by Larrauri, Rupérez, and Saura-Calixto (1997). Samples of cherry tomato were previously irradiated as described in 2.1 and freeze-dried (Heto 2 D. Guerreiro et al. / Innovative Food Science and Emerging Technologies 36 (2016) 1–9 PowerDry DW8 Freeze Dryer, Waltham, US) for 140 h. An amount of 0.5 g of the lyophilized samples were mixed with 20 mL of methanol, sonicated during 10 min and centrifuged for 5000 rpm, at 20 °C for 15 min (Beckman J2-21M Induction Drive Centrifuge, Ramsey, US). The supernatant was used in the following assays. The samples were maintained at 4 °C between assays.