Abstract
Comparison of Total Antioxidant Capacity, Polyphenolic, and Anthocyanins Contents from Some Varieties of Dry Beans of Burkina
Author(s): Adama H, Eloi P, Abdoulaye S and Mouhoussine NTotal polyphenolics (TPP), anthocyanins (TAT) contents and total antioxidant capacity (TAC) of grains and leaves from fourteen local varieties of dry beans grown in Burkina were studied using Folin-Ciocalteu, DPPH, and total anthocyanin assays. Extracted with 70% aqueous acetone, TPP, TAT contents and TAC were determined spectrophotometrically. All measurements are made in duplicates with a coefficient of variation less than 10%. In relation to those of leaves, grains extracts had the highest TAC and TPP values. Then, the highest TAC value of grains (01 CC-26 (77.57 ± 0.08 μmoles of Quercetin Equivalents (QE) per gram of dried material) is higher than the highest TAC value of leaves (Gaoua Local (GR) (9.48 ± 0.08 μmoles of QE per gram of fresh material). Indeed, between TAC values (from Gaoua Local (GR) (9.48 ± 0.08 μmoles of QE per gram of fresh material) to IT 93K-93-10 (2.84 ± 0.13 μmoles of QE per gram of fresh material) and TPP content (from 01 CC-26 (31.67 ± 0.28 μg of Gallic Acid Equivalents per gram of fresh material to IT 85F 867-5 (23.12 ± 0.04 μg of GAE per gram of fresh material) of leaves there was the best correlation (R=0.947).
