EFFECTIVE ANTIOXIDANT PHENOLIC COMPOUNDS IN SELECTED VARIETIES OF APPLES

Polyphenolic compounds are effective antioxidant regarding their ability to reat with free radicals of fatty acid and oxygen(free radical scavening effect). One of the richest source of polyphenolic compounds in human nutrition are apples (Malus Mill.). Our work was focused on determinaton of total polyphenols contents and antioxidant activity and evaluate the presence of dislocation active antioxidant components in four of selected varieties of apples Idared, Jonagold, Pinova, Topaz (peel extract and pulp extract).The total contents of phenolic compounds,determined according to the Folin-Ciocalteu reagent spectrofotometric by Lachman and antioxidant activity was measured using a free radical used in this study was 2,2-diphenyl-1-picrylhydrazyl (DPPH). Average content of total polyphenols in selected varieties of apples was 622,67 mg.kg-1 (peel extract) and 568,7mg.kg-1 (pulp etract) after harvesting. Relationships between content of total polyphenols and antioxidant activity is affected by varietal difrences. doi:10.5219/222