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Study of the free radical scavenging effects the water-ethanol extract of Tetrapleura tetraptera ((a) DPPH, (b) ABTS, (c) OH, and (d) NO). Values are expressed as mean ± SD of three replicates. In the same concentration the values affected with different letter are significantly different at p<0.05. Extract: water-ethanol extract of Tetrapleura tetraptera fruits.
