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has been cited by the following article:

• TITLE: Contribution of Major Hydrophilic and Lipophilic Antioxidants from Papaya Fruit to Total Antioxidant Capacity

  AUTHORS: Laura E. Gayosso-García Sancho, Elhadi M. Yahia, Gustavo A. González-Aguilar

  KEYWORDS: Carica Papaya; Carotenoids; Phenolics; Radical Scavenging Activity; TEAC; DPPH

  JOURNAL NAME: Food and Nutrition Sciences, Vol.4 No.8A, July 29, 2013

  ABSTRACT: Several studies have shown that phenolic and carotenoid compounds protect against oxidative stress, reducing the risk of cardiovascular diseases and some types of cancers. The objective of this research was to determine the individual contribution of the main phenolic compounds from the papaya fruit skin and the individual contribution of main carotenoids from the pulp for total antioxidant capacity at four ripening stages; and the individual and combined radical scavenging ability used the essays DPPH (radical 2, 2-diphenyl-1-picryhydrazyl) and ABTS (radical 2, 20-azino-bis (3-ethylbenzothiazoline)-6 sulphonic acid). Phenolic acids standards for this study were ferulic (FA), caffeic (CA) and p-coumaric (pCA) acids and carotenoids studied were Lycopene, β-carotene and β-cryptoxanthin. The phenol that showed the best DPPH· and ABTS·+ radical scavenging ability was CA, with 89.47% and 92.98%, respectively. Lycopene contributed the greatest to the TAC (11.9-43.2). Lycopene also showed the best DPPH· and ABTS ·+ radical scavenging ability with 62.12% and 94.26%, respectively. Antiradical ability of phenolics and carotenoids depended on the structure of the compound and its concentration.