Antioxidant activity of Aronia melanocarpa fruit juice in vitro

Valcheva-Kuzmanova, S. and Gadjeva, V. and Ivanova, D. and Belcheva, A. (2007) Antioxidant activity of Aronia melanocarpa fruit juice in vitro. Acta Alimentaria, 36 (4). pp. 425-428. ISSN 0139-3006

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Abstract

Aronia melanocarpa fruit juice (AMFJ) used in this experiment was very rich in phenolic substances, anthocyanins being the main flavonoid group. The antioxidant action of AMFJ was determined in vitro through measuring its Trolox equivalent antioxidant capacity (TEAC), superoxide dismutase (SOD)-like activity and catalase (CAT)-like activity. The TEAC of AMFJ was 63±0.8 mM. The SOD-like activity of 1 ml AMFJ was equivalent to that of 230.3±8.4 U SOD and was equal to that of 12.3 mg L-ascorbic acid and 11.4 mg Trolox, respectively. The CAT-like activity of 1 ml AMFJ was equivalent to the activity of 3223.5±91.3 U CAT and was equal to that of 6.4 mg L-ascorbic acid, while Trolox did not show such an activity. The pronounced antioxidant action of AMFJ is probably due to its high content of phenolic compounds.

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