HEs	Herbal extracts of Sambucus nigra, Epilobium hirsutum, and Lythrum salicaria from this study before optimization or other extracts from these plant materials previously reported in the literature when used for comparison
OHEs	Optimized herbal extracts of Sambucus nigra, Epilobium hirsutum, and Lythrum salicaria after being optimized in this study
UTE	Ultra-turrax-assisted extraction
USE	Ultrasound-assisted extraction
TPC	Total polyphenol content, mg GAE/mL HE = mg gallic acid equivalents/mL of HE
TFC	Total flavonoid content, mM QAE/mL HE = mM quercetin equivalents/mL of HE
MIC	Minimum inhibitory concentration
DPPH	2,2-diphenyl-1-picrylhydrazyl radical scavenging capacity, Trolox equivalents (TEs) mg/mL of OHE.
FRAP	Ferric reducing antioxidant power, Trolox equivalents (TEs) mM/OHE.
TEAC	Trolox equivalent antioxidant capacity, Trolox equivalents (TEs) mM/OHE.