Journal
PROGRESS IN LIPID RESEARCH
Volume 68, Issue -, Pages 109-118Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.plipres.2017.10.001
Keywords
Food fats and oils; Food structure; Gastrointestinal tract; Digestion; Emulsion
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Dietary fats and oils are an important component of our diet and a significant contributor to total energy and intake of lipophilic nutrients and bioactives. We discuss their fate in a wide variety of engineered, processed and naturally-occurring foods as they pass through the gastrointestinal tract and the implicit role of the food matrix within which they reside. Important factors that control fat and oil digestion include: 1) Their physical state (liquid or solid); 2) Dispersion of oil as emulsion droplets and control of the interfacial structure of emulsified oils; 3) The structure and rheology of the food matrix surrounding dispersed oil droplets; and 4) Alteration of emulsified oil droplet size and concentration. Using examples based on model foods such as emulsion gels and everyday foods such as almonds and cheese, we demonstrate that food structure design may be used as a tool to modulate fat and oil digestion potentially resulting in a number of targeted physiological outcomes.
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