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HPLC-DAD chromatogram of “artificial” honey extract at 320 nm. (1: trans caffeic acid, 2: cis-caffeic acid, 3: trans-p-coumaric acid, 4: cis-p-coumaric acid, 5: trans-ferulic acid, 6: cis-ferulic acid, 7: quercetin, 8: kaempferol, 9: chrysin).
