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Comparison of scavenging effect (potassium permanganate method (a)) and total polyphenol content (FOLIN-Ciocalteu method (b)) expressed as gallic acid equivalent (GAE) per dry residue (mg/mL) in the analyzed Melissa officinalis (L.) mother tinctures. Bar plots not sharing any letter indicate samples which are significantly different (p ≤ 0.05).
