1. In vitro digestion of meat- and cereal-based food matrix enriched with grape extracts: How are polyphenol composition, bioaccessibility and antioxidant activity affected?
- Author
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Pešić MB, Milinčić DD, Kostić AŽ, Stanisavljević NS, Vukotić GN, Kojić MO, Gašić UM, Barać MB, Stanojević SP, Popović DA, Banjac NR, and Tešić ŽL
- Subjects
- Antioxidants analysis, Biological Availability, Edible Grain chemistry, Flavonoids analysis, Flavonols, Humans, Polyphenols analysis, Proanthocyanidins analysis, Seeds chemistry, Digestion, Edible Grain metabolism, Food, Fortified analysis, Meat analysis, Plant Extracts analysis, Vitis
- Abstract
The aim of this study was to evaluate the effect of enriching a complex food matrix (FM) with grape extracts on polyphenol content, composition, bioaccessibility and antioxidant activity during digestion. The grape extracts and FM were separately tested under the same conditions as controls. The FM by itself contains a significant amount of phenolic acids and flavonols, influencing the final recovery of polyphenols from grape extracts. The FM significantly increased the total recovery of polyphenols after digestion of grape seed extracts compared to those digested without the FM; however, a low recovery of proantocyanidins and total flavonoids was observed. Digestive fluids and FM compounds significantly increased the total polyphenol content of grape digests and significantly contributed to their ABTS
+ scavenging activity and ferrous-ion-chelating capacity. The present study suggested that enrichment of meat- and cereal-based products with grape polyphenol extracts could be a good strategy to formulate a healthier diet., (Copyright © 2019 Elsevier Ltd. All rights reserved.)- Published
- 2019
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