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DPPH radical scavenging activity of ANPP. IC50 (μg/mL): CAT, 2.459 ± 0.002; ANPP, 1.741 ± 0.001. Results are expressed as mean ± SD (n = 3). Means with letters a and b differ significantly (p < 0.05). CAT, catechin; ANPP, Acacia nilotica polyphenolics.
