Identification of Bioactive Compounds in Plant Extracts of Greek Flora and Their Antimicrobial and Antioxidant Activity

This study examined five species of the Lamiaceae family, Origanum vulgare L., dictamnus majorana Mentha spicata L. and Lavandula angustifolia one Hypericaceae Hypericum perforatum for their potential to enhance health wellbeing or prevent diseases. An analysis secondary metabolites was performed by mass spectrometry HPLC coupled with diode array detection determine phenolic compounds included in plant extracts. The samples were evaluated total content, antioxidant potential, ability DNA scission caused peroxyl radicals antimicrobial activity against pathogens (MIC). All samples, except had a high DPPH radical scavenging showed significant antibacterial activity. demonstrated lowest IC50 value (10.31 μg·mL−1). Extracts medicinal herbs remarkably content varying between 428 1512.74 μg GAE/mg dry extract, having largest amount polyphenols. Moreover, extracts exhibited level resistance damage, showing greatest protection 98.05% inhibition. According results this study, these plants from Greek flora provide beneficial effects as natural antioxidants. A baseline can be established through findings survey future research on same species.