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Antioxidant activity of C. endivia L. crude extract: (a) the IC50 value of DPPH radical scavenging assay; (b) the IC50 value of FRAP scavenging assay; and (c) total antioxidant capacity (TAC) assay. Results are expressed as mean ± SD and compared by Student t test. * Significantly different compared to C. endivia crude extract at p < 0.05.
