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Fortification of yogurt with Solanum melongena phenolic extract: physicochemical stability, bioaccessibility, bioavailability, and antioxidant effects
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Advisor(s)
Abstract(s)
This study investigated the impact of fortifying yogurt with Solanum melongena phenolic extract by assessing its physicochemical, biochemical, and antioxidant stability, including its behavior during in vitro simulated digestion. Fortification influenced the yogurt's pH, titratable acidity, and color, and improved its cohesiveness during shelf life. The fortified yogurt exhibited higher glucose levels and reduced lactic acid production compared to the control. During simulated digestion, the extract modulated alterations in the protein and fatty acid profiles of the yogurt. Among phenolic compounds, 3-O-caffeoylquinic acids exhibited good stability during the oral and gastric phases but decreased in the intestinal digest. Some antioxidant effects were enhanced during digestion, particularly against lipid peroxidation, but declined during storage. Furthermore, phenolic acids were absorbed in an in vitro Caco-2 cell model, supporting their bioavailability. Overall, yogurt fortification with S. melongena extract improved nutritional and functional properties, highlighting its potential as a sustainable functional food. Future studies should address sensory acceptance, safety aspects, and in vivo health outcomes.
Description
Keywords
Bioactive phenolic extract By-product valorization Food fortification Functional food Natural food additive Refrigerated storage
Pedagogical Context
Citation
Añibarro-Ortega, M., Gómez-García, R., Machado, M., & Pereira, A. et al. (2025). Fortification of yogurt with Solanum melongena phenolic extract: physicochemical stability, bioaccessibility, bioavailability, and antioxidant effects. Food research international, 222(part. 2), Article 117725. https://doi.org/10.1016/j.foodres.2025.117725