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. 2020 Sep 12;9(9):1193. doi: 10.3390/plants9091193

Figure 1.

Figure 1

Total phenolic content (Folin–Ciocalteu method) (A), total flavonoid content (B), total anthocyanin content (C), and DPPH antioxidant activity (D) of the leaf extracts from the six commercial blueberry varieties. The total phenolic content of the extract is expressed as gallic acid equivalents (GAE) in mg/100 g leaf material. The total flavonoid content is expressed as quercetin equivalents (QE) in mg/100 g leaf material. Values (means ± SD, n = 3) followed by different letters (a–e) indicate significant differences (p < 0.05) between the six varieties (One-way ANOVA-Tukey multiple range tests).