EVALUATION OF PHENOLIC COMPOUNDS AND ANTIOXIDANT CAPACITY OF THREE COLOR PETAL CRESS (Tropaeolum majus L.)

Abstract

The content of phenolic compounds and antioxidant capacity in three colors of petals cress
(Tropaeolum majus L.) was evaluated. Petals colors red cress, orange and yellow were dried
at room temperature; then they were conditioned for extracting its bioactive components,
which were quantified showing significant difference (p<0.05) between colors. The highest
concentration of total phenols is in the orange color, followed by red and yellow (917.05;
799.35 and 442.02 mg AGE/g sample). For quantification of total flavonoids, the highest
content is in the red, followed by orange and yellow (2.184; 1.185 and 0.867 mg QE /g
sample). As for the total tannins, the highest content is in the red followed by orange and
yellow (342.92; 333.77 and 291.53 mg ATE/g sample). With respect to the antioxidant
capacity by DPPH and ABTS methods, the highest content is in the orange color, followed by red and yellow (3928.226; 3286.163 and 2500.887 μM TE/g sample), (622.92; 608.15 and
587.01 μM TE/g sample).