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Pearson correlation analysis of bioactive substances and antioxidant activity broccoli florets of two cultivars. GSLs: glucosinolates; AGS: total aliphatic GSLs; IGS: total indole GSLs; GRA: glucoraphanin; DPPH: 2,2-di-phenyl-1-picrylhydrazyl radical scavenging capacity; ABTS: trolox-equivalent antioxidant capacity; FRAP: ferric-reducing antioxidant power. * and ** represent significant correlation at the 0.05 and 0.01 level (2-tailed), respectively.
