The different compounds were characterized by chromatographic comparison with authentic standards, when available, and their spectra recorded with the diode array detector. All antho- cyanins were quantified as cyanidin 3-rutinoside due to the lack of a sufficient amount of other standards. Detection was achieved at 510 nm. Total phenolic compounds were calculated as addition of the amounts of anthocyanins, flavonols, and hydroxycinnamic acids detected in each chromatogram. Flavonols were quantified as rutin at 360 nm, the hydroxycinnamic acid derivatives at 320 nm as chlorogenic acid, and the stilbenes at 320 nm trans-resveratrol,as previously reported by Cantos and other