Comparison of the capacity of moss extracts to chelate iron (II) ions and scavenge the free radical DPPH

Abstract

In recent years, compounds with antioxidant properties occurring in plants are very popular among scientists due to their ability to neutralize free radicals. It is assumed that free radicals may participate in the formation of many diseases, especially civilization diseases, the number of which is growing drastically. Bryophytes are still a poorly studied group of plants, which makes them an interesting object of phytochemical research. Determination of the antioxidative potential of extracts from twenty moss species. The ethanol extracts from gametophytophytes of twenty moss species were tested. The following methods were used in the work: method of measuring the scavenging ability of a synthetic DPPH radical, the method of measurement of iron (II) ions chelating ability. Based on the results obtained using the above methods, it can be concluded that the extracts of all species used in the studies show
the ability to scavenge free radicals and the ability to bind iron (II) ions. Extracts from the following species showed the lowest antioxidant activity in the samples using the method of scavenging the synthetic DPPH radical: Polustriella commutata (IC50 = 264.5 mg/ml), Sphanum fimbriatum (IC50 = 154.66 mg/ml) and Pleurozium schreberi (IC50 = 126.81 mg/ml). The highest iron chelation capacity is presented by Hypnum cupressiforme (IC50 = 0.32 mg/ml.) and Rhytidiadelphus triquetrus (IC50 = 0.50 mg/ml) extracts.The studies have shown the antioxidant potential of
20 species of mosses. The highest potential for the free radical scavenging of DPPH has been demonstrated by mosses from the Polytrichopsida family.