MANGO PEEL FIBERS WITH ANTIOXIDANT ACTIVITY

Antioxidant compounds associated with some types of dietary fibres may be responsible in part for the beneficial effects on health of high-d ietary-fibre diets. The antioxidant activity of a high-dietary-fibre m ango peel product and of some commercial samples was determined by the ferric thiocyanate colorimetric method. At a concentration of 0.05%, the antioxidant activity of mango peel dietary fibre was 0.75 times as effective as that of 2-tertbutyl-4-hydroxyanisol (BHA) and 1.4 and 3. 4 times higher, respectively, than that of French PARAD'OX (a commerci al polyphenols concentrate) and of DL-alpha-tocopherol. All Bran, Quak er Oats, lemon and apple fibre did not exhibit any antioxidant capacit y. The obtention of high-dietary-fibre products with bioactive compoun ds could be useful for the food industry and the antioxidant activity may be a new property to consider in the quality evaluation of these i ngredients.