Digestive Behavior of Emulsified Lipid Systems
Summary
Emulsified lipid systems constitute dispersed oil droplets within an aqueous medium, stabilised by emulsifiers or particulates. During gastrointestinal transit, these systems undergo structural evolution governed by droplet size, interfacial composition and continuous‐phase viscosity. Lipase enzymes adsorb at the oil–water interface to catalyse lipolysis, releasing free fatty acids and monoglycerides that may form micelles with bile salts. The rate and extent of digestion depend on interfacial barriers, such as adsorbed fibres or polymeric coatings, which can hinder enzyme access or alter local pH. Modulating these parameters enables targeted control of lipid bioaccessibility, with implications for the design of low-calorie foods, functional deliveries of lipophilic nutrients or pharmaceuticals, and improved understanding of postprandial lipid metabolism. Global research highlights how food matrix structure and engineered delivery vehicles converge to influence nutritional outcomes, drug bioavailability and metabolic health.
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Digestive Behavior of Emulsified Lipid Systems publication trend
The graph below shows the total number of articles in digestive behavior of emulsified lipid systems across all publications each year (not limited to Nature Index journals).
Technical terms
Emulsion: A dispersion of oil droplets in water or vice versa, stabilised by emulsifiers or solid particles to prevent coalescence.
Lipolysis: Enzymatic hydrolysis of triglycerides into free fatty acids and monoglycerides at the oil–water interface.
Bioaccessibility: The fraction of a compound released from its matrix in the gastrointestinal tract, becoming available for absorption.
Viscosity: A measure of a fluid’s resistance to flow, influencing diffusion of lipases and bile salts within the continuous phase.
Protective layer: An interfacial film formed by polymers or particles that hinders enzyme adsorption and substrate access during digestion.
References
- The lipid digestion behavior of oil-in-water emulsions stabilized by different particle-sized insoluble dietary fiber from citrus peel. Food Chemistry X (2023).
- The Influence of Cellulose Ethers on the Physico-Chemical Properties, Structure and Lipid Digestibility of Animal Fat Emulsions Stabilized by Soy Protein. Foods (2022).
- In-vitro stress stability, digestibility and bioaccessibility of curcumin-loaded polymeric nanocapsules. Journal of Experimental Nanoscience (2021).
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