Influence of the genotype on the polyphenolic composition and antioxidant activity of some berry fruits
2024
Selamovska, Ana | Miskoska-Milevska, Elizabeta | Taseska-Gjorgjijevski, Milena | Iljovski, Igor
Influence of the genotype on the polyphenolic composition and antioxidant activity of some berry fruits- Genetika, Vol 56, No.1, 143-155. The objective of this study was to analyze the content of vitamin C, total phenols, total anthocyanins, flavan-3-ols and antioxidant activity in fruits of five berry fruit species: blackcurrant variety “Rosenthal”, white mulberry local ecotype, black chokeberry variety “Viking”, blackberry variety “Thornfree” and pomegranate autochthonous variety “Karamustafa”. Determination of vitamin C was performed by classical analytical method. Total phenols, total anthocyanins, flavan-3-ols and antioxidant activity were analysed by spectrophotometric methods. The obtained results from the analysis for berry fruits showed high antioxidant activity, over 70% and high content of polyphenols. According to the genotype, black chokeberry had the highest content of total phenols (23.9 mg g-1 FW (fresh weight), anthocyanins (6.1 mg g-1 FW) and flavan-3-ols (2.8 mg g-1 FW). Blackcurrant had highest content of vitamin C (216.0 mg 100 g-1 FW) and antioxidant activity (86.2% inhibition). A positive correlation was found among all the studied fruit species. A strong positive correlation of vitamin C with antioxidant activity was determined, as well as between total phenols and total anthocyanins, i.e. flavan-3-ols. A weak negative correlation was only observed for catechin in relation to vitamin C, inhibitory antioxidant activity and vitamin C antioxidant activity.
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