File Name: antioxidant activity and total phenolics in selected fruits vegetables and grain products .zip
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Objective: Antioxidants are considered as the main factors in the inhibition of unwanted oxidation reactions. Materials and Methods: In this research the antioxidant potential of the fresh fruits of 4 cultivars A to D of Malus domestica M. Results: Total phenolic contents of the samples are also estimated by Folin-Ciocalteu's phenol test. Conclusion: The Folin-Ciocalteu's phenol test was also showed very little phenolic compounds for the fruits. In conclusion, weak antioxidant activity was estimated for the studied apple cultivars. Free radicals are present in biological systems and may oxidize all the biological molecules present in our body, such as nucleic acids, proteins, lipids, initiating degenerative diseases Cook et al.
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Effect of different extracting solvents on antioxidant activity and phenolic compounds of a fruit and vegetable residue flour. Pasteur, , Urca, - , Rio de Janeiro, Brazil. In order to quantify antioxidant capacity in food products, several methods have been proposed over the years. Among them, DPPH radical is widely used to determine the antioxidant capacity of different substrates. However, it is known that different types of extractants, providing different responses, can extract a variety of bioactive compounds. Besides, storage time seems to interfere in the stability of these substances. Integral use of fruits and vegetables has been proposed along the years as a means of reducing environmental pollution and give a better destination to by-products from food industries.
Varieties of blue maize are used to produce tortillas. The Bolita genotype is frequently underused, despite its rich content of bioactive compounds. The composition of derived products is influenced by maize processing. The impact of processing on the total phenolic content TPC , phenolic acid profile PAP , antioxidant activity AA and color was evaluated in tortillas produced from blue Bolita landraces. The properties were determined in anatomical fractions, nixtamal, wastewater, masa and tortillas.
Evaluation of seasonal antioxidant activity and total phenolic compounds in stems and leaves of some almond Prunus amygdalus L. Antioxidant activity IC 50 of these varieties reached the highest value in April for leaves whereas in October for stems. The highest level of total phenolic compounds was in January for stems while in October for leaves. Climate is a factor which affects agricultural production. Increase of temperature or variations in precipitation ratio affect physiological events in plants . Almond belongs to Rosaceae family and is an important product due to high commercial value of its fruits.
Lizbeth A. Vazquez-Flota, Maria L. In the past few years, there has been a renewed interest in studying a wide variety of food products that show beneficial effects on human health. Capsicum is an important agricultural crop, not only because its economic importance, but also for the nutritional values of its pods, mainly due to the fact that they are an excellent source of antioxidant compounds, and also of specific constituents such as the pungent capsaicinoids localized in the placental tissue. Results showed that red immature placental tissue, with a Trolox equivalent antioxidant capacity TEAC value of
Antioxidant Activity and Total Phenolics in Selected Fruits,. Vegetables, and Grain Products. Y. S. Velioglu,†G. Mazza,* L. Gao, and B. D.
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