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Antioxidant capacity (A) and catalase (CAT) activity (B) of wounded and unwounded (control) roots during 28 days storage at 6 and 12°C. Roots were wounded by abrading the root surface with a wire brush 2 h after harvest. Roots were stored at 94% relative humidity. Antioxidant capacity is expressed as ΔAbs517 (g dry wt)-1. CAT activity is expressed as μmol H2O2 destroyed min-1 (g protein)-1. Data are the mean ± SE of the mean of five replicate roots.
