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Total polyphenol content (TPC) expressed in milligrams gallic acid equivalent (GAE) and total flavonoid content (TFC) in quercetin equivalent (QE) per gram of fresh weight (FW) measured in methanolic (MetOH) and ethanolic (EtOH) extracts of Agave lechuguilla by-product from three different regions. Different letters indicate significant difference resulting from the one-way ANOVA and Tukey post-hoc test, respectively, performed on TPC and TFC (n = 12, p-value < 0.05).
