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Extraction yield (%) of the different E. purpurea extracts. Statistically significant differences are 1 (p < 0.0155), 2 (p < 0.0088), 3 (p < 0.0010), and 4 (p < 0.0001) in comparison with a (Flowers vs. Leaves), b (Flowers vs. Roots), c (Leaves vs. Roots), σ (AE vs. EE), β (AE vs. DE), and γ (EE vs. DE). F: flowers; L: leaves; R: roots; AE: aqueous extracts; EE: ethanolic extracts; DE: dichloromethanolic extracts.
