Journal
FOOD CHEMISTRY
Volume 164, Issue -, Pages 438-445Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2014.04.118
Keywords
Antioxidant capacity; Maillard reaction; Melanoidins; Metal chelating activity
Funding
- Consejeria de Innovacion, Ciencia y Empresa (Junta de Andalucia) [AGR-4135]
- postdoctoral scholarship of Silvia Pastoriza from Instituto Danone (Spain)
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Most foods included within the western diet are subjected to heat processing. During such treatment, the Maillard reaction takes place, generating brown polymers known as melanoidins. Melanoidins could have health beneficial properties such as chemopreventive, antimicrobial or antioxidant capacity. Here we have established the content of melanoidins in thermally processed foods consumed regularly in the Spanish diet (chocolate, sweet wine, balsamic vinegar, beer, bread, breakfast cereals and biscuits) and their antioxidant capacity by different in vitro methodologies (ABTS, FRAP, DPPH, ORAC, HOSC). The mean intake of melanoidins is 12.2 g/person/day within the Spanish diet, bread, pilsner beer and biscuits being the foods that contributed most. The most antioxidant melanoidins were those from coffee, followed by balsamic vinegar and sweet wine. Finally, the average intake of antioxidant capacity coming from melanoidins was 717 mu mol Trolox/day, melanoidins from coffee, biscuits, pilsner beer and chocolate being those which possessed more antioxidant capacity. (C) 2014 Elsevier Ltd. All rights reserved.
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