Related Experiment Video
Updated: Jul 7, 2026

Analysis and Specification of Starch Granule Size Distributions
Published on: March 4, 2021
Influence of the structure of cornstarch dispersions on kinetics of aroma release
C Lafarge1, M-H Bard, A Breuvart
1UMR nr 1129 FLAVIC, ENESAD - INRA, Univ. de Bourgogne, 17 rue Sully, BP 86510, F-21065 Dijon Cedex, France.
Abstract:
This study deals with the impact of food structure and texture on aroma release. This was done with cornstarch dispersions with constant concentrations in starch but differing in their structures. The structure parameters of the cornstarch dispersions were varied by changing the shearing conditions during the pasting process. Linalool and isoamyl acetate were chosen as reference aroma compounds. Linalool is known to form complexes with amylose while isoamyl acetate does not. The release of aroma compounds from starch dispersions under stirring was studied at 2 temperatures by discrete sampling of the headspace. Aroma release curves were modeled and the kinetic and thermodynamic parameters were extracted. The release of linalool seemed to be governed mainly by the interactions (complexation) with starch. In contrast, the interactions between starch and isoamyl acetate were feebler, and the release of this aroma compound was governed by the structure of the starch dispersion. The observed interactions were better established at 20 degrees C than at 32 degrees C.
Related Concept Videos
Factors Affecting Dissolution: Particle Size and Effective Surface Area
Factors Affecting Dissolution: Drug Permeability, Stability and Stereochemistry
Factors Influencing Drug Absorption: Pharmaceutical Parameters
Theories of Dissolution: Diffusion Layer Model
This process starts with a thin layer, saturated with the drug, forming at the interface between the solid and liquid. The solute then diffuses from this layer into the main solution. The Noyes-Whitney equation suggests that the rate of dissolution relies on the diffusion...
Colloids
Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model
