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(A) Total phenolic content (TPC) and total flavonoid content (TFC) and (B) 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azinobis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) radical scavenging activities of methanolic extract of Ocimum basilicum, Xylopia aethiopica, and Piper guineensis. Values with different letters (a–c) are significantly different at P <0.05. GAE, gallic acid equivalents; QE, quercetin equivalents.
