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- Title
ANTIOXIDANT CAPACITY AND HEAVY METALS IN SELECTED MEDICAL PLANTS.
- Authors
Nataša, Lukić; Siniša, Škondrić; Tanja, Trifković; Dijana, Mihajlović; Stana, Ćirić; Milica, Šešić; Biljana, Davidović-Plavšić; Miloš, Mojović; Đuro, Nakarada; Biljana, Kukavica
- Abstract
Traditional medicinal plants such as Punica granatum (Lythraceae), Chaerophyllum coloratum (Apiaceae), Menyanthes trifoliata (Menyanthaceae), Teucrium montanum (Lamiaceae), Petteria ramentacea (Fabaceae), and Dictamnus albus (Rutaceae) have long been utilized for their therapeutic potential in managing various ailments. This study aims to investigate their antioxidant capabilities, positioning them as potential natural sources of antioxidants. The antioxidant capacities of these selected plants were assessed through the ferric-reducing antioxidant power (FRAP) and CUPric reducing antioxidant capacity assays, Fe chelation, hydroxyl radicals’ removal, alongside the quantification of total phenolic compounds. Additionally, the concentration of heavy metals (Cu and Fe) was determined using atomic absorption spectrophotometry to ensure safety. The findings indicate significant variability in antioxidant activities across the various plant species examined in this study, with certain plants exhibiting notable richness in natural antioxidants. Among these, P. granatum displayed the highest phenolic compound content, closely followed by T. montanum and M. trifoliata. Moreover, P. granatum and T. montanum exhibited superior Fe chelating ability and Cu reduction capacity, indicative of their potent antioxidative capabilities. Conversely, D. albus demonstrated comparatively lower antioxidative capacity, Fe chelating ability, Cu reduction capacity, and phenolic compound concentration. Moreover, investigating the correlation between the reduction of Fe and Cu and the concentration of phenolic compounds reveals a strong association, with a high intensity correlation coefficient (R=0.796 for Fe and R=0.774 for Cu). This underscores the significant role of phenolic compounds as antioxidants. Crucially, heavy metal concentrations (Fe (<100 mg kg-1 ) and Cu (<15 mg kg-1 )) in all plants fell within permissible limits, ensuring their safety for medicinal use. In conclusion, the investigated medicinal plants showcase promising antioxidant potential, with P. granatum and T. montanum emerging as particularly robust candidates. These findings underscore their significance as natural sources of antioxidants for potential therapeutic applications.
- Subjects
OXIDANT status; HEAVY metals; ATOMIC absorption spectroscopy; COPPER; BIOACCUMULATION in plants; PHENOLS
- Publication
Genetics & Applications, 2024, p60
- ISSN
2566-2937
- Publication type
Article