Related Experiment Video
Updated: Dec 24, 2025

In vitro Digestion of Emulsions in a Single Droplet via Multi Subphase Exchange of Simulated Gastrointestinal Fluids
Published on: November 18, 2022
Physicochemical properties and in vitro digestibility of lotus seed starch-lecithin complexes prepared by dynamic
Yixin Zheng1, Yujia Ou2, Yi Zhang3
1College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
Abstract:
The objective of this study was to investigate the physicochemical properties and in vitro digestibility of lotus seed starch-lecithin inclusion complexes (ICs), prepared by dynamic high pressure homogenization. Raman spectrometry indicated that the IC formed between starch and lecithin, compared with the control mixture, could modify the helix rearrangement between different amylose conformations, to promote the formation of an ordered and stable V-type conformation. The content of amylose single helix appeared to be an important factor in the formation of starch-lipid complexes. Dispersion stability and solubility determinations indicated that the effect of mixing lecithin with starch mainly focused on the dispersion stability and not the solubility of starch emulsions. ICs with a V-type conformation, formed by homogenization of lecithin and amylose, achieved the same, or better emulsion stability as mixed lecithin, and the formation of ICs reduced the affinity of starch chains for water molecules, lowering their solubility. Digestion analysis suggested that the higher proportion of microcrystalline region in V6I complexes, resulted in a lower digestion rate and a higher resistant starch (RS) content.
More Related Videos
Related Concept Videos
Factors Influencing Drug Absorption: Physicochemical Parameters
Enhanced drug absorption can be achieved by reducing particle sizes and increasing surface areas, thereby facilitating...
Factors Influencing Drug Absorption: Pharmaceutical Parameters
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
Factors Affecting Dissolution: Drug Permeability, Stability and Stereochemistry
Factors Affecting Dissolution: Drug pKa, Lipophilicity and GI pH
A drug's pKa and the pH of the gastrointestinal (GI) tract play crucial roles...

