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HPLC-DAD chromatogram a phenol acids standards (peaks: 1 gallic acid; 2 3,4-dihydroxy benzoic acid; 3 chlorogenic acid; 4 caffeic acid; 5 vanillic acid; 6 syringic acid; 7 ferulic acid; 8 o-coumaric acid; 9 trans-cinnamic acid) and b scalded Sinaloa extract. UV detection at 280 nm
