Phenolic compounds, flavonoids and radical scavenging activity of tetraploid and diploid forms of leaves, berries and stalks of blackcurrant (Ribes Nigrum L.)

Abstract

The blackcurrant berries is known to have high nutritional value, with a high level of polyphenols, namely antocianins, phenolic acids, flavanols and proanthocyanidins. Spectrophotometry was used to characterize total phonolics, flavonoids and radical scavenging capacity in leaves samples collected at different vegetation phases of blackcurrant as well as berries and stalks. Blackcurrant was cultivated in Institute of Horticulture of Lithuanian Research Centre of Agriculture and Forestry. The level of ploidy of analysed blackcurrants was diploid and tetraploid. Using phytochemical analysis of tetraploid blackcurrant was determined that this form has a tendency to accumulate higher amounts of phenolic compounds rather than diploid form. Higher radical scavenging activity was determined of the leaves of tetraploid blackcurrant comparing to the leaves of diploid form of blackcurrant.