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Different phenolic compounds from the three main classes of hydroxycinnamic acids, flavonols, and flavones identified in polar extracts of amaranth, cassava, jute mallow, roselle, and spinach leaves. Hydroxycinnamic acids are expressed as caffeic acid equivalent and flavonols/flavones as quercetin-3-O-glucoside equivalent. Data are the mean ± SD of three replicates. Error bars indicate the SD of the sum of the phenolic compounds classes.
