Bioaccessibility of hydroxytyrosol and n-3 fatty acids as affected by the delivery system: simple, double and gelled double emulsions

This study examines the influence of different food-grade n-3 PUFA-enriched simple emulsion (SE), double emulsion (DE) and gelled double emulsion (GDE) delivery systems on the extent of lipolysis, antioxidant capacity and the bioaccessibility of hydroxytyrosol (HTy). GDE emulsion offered better protection for HTy (89%) than the other systems (79% in SE and DE). The reducing capacity of the emulsions containing HTy were not altered during oral digestion. However, “in vitro” gastric and intestinal phases significantly reduced the antioxidant activity of all systems. The structural and physical state of GDE entailed a slowing-down of triacylglyceride hydrolysis (36.4%) in comparison with that of SE and DE (22.7 and 24.8% for SE and DE, respectively).

Bibliographic Details

Main Authors:	Cofrades, Susana, Bou, Ricard, Flaiz, Linda, Garcimartín, Alba, Benedí, Juana, Mateos, Raquel, Sánchez-Muniz, F. J., Olivero-David, Raúl, Jiménez Colmenero, Francisco
Other Authors:	Consejo Superior de Investigaciones Científicas (España)
Format:	artículo biblioteca
Published:	Springer Nature 2017
Subjects:	n-3 fatty acids, Hydroxytyrosol, Lipolysis, Antioxidant capacity, Emulsion-based delivery systems,
Online Access:	http://hdl.handle.net/10261/171251 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100003339
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