Starch, one of the most common biopolymer in nature, is one of the main ingredients of many foods of plant origin, while is used as basic building block (gelling agent) in several foods giving them specific texture. Besides, starch has the ability to interact with volatile aroma compounds which give the aromatic features to foods affecting their quality and making them acceptable or not to consumers.The aim of this study is the characterization of starch granules from different origin such as rice, corn, wheat, potato etc by reversed flow gas chromatography a sub-technique of inverse gas chromatography in order to investigate their ability to interact with aroma compounds.Obtaining data for the interaction between aroma compounds and starch from different origins and applying appropriate mathematical analysis physicochemical quantities referring to the surface characterization of starch granules can be carried out.From the experimental chromatographic data, the local adsorption energy, e, local equilibrium adsorbed concentration, cs*, local adsorption isotherm, ?(p, T, e) and the geometrical mean of the London parts of the total surface free energy (?L1?L2)1/2of the adsorbed and the solid surface in a time resolved way can be calculated simultaneously.From the obtained results the influence of origin, size distribution, morphology etc. on the ability of starch granules to interact with aroma compounds can be carried out.References N.A. Katsanos and G. Karaiskakis, Inverse Gas Chromatography and its applications, HNB Publising :New York, 2004, 84-136.Acknowledgment This research has been co-financed by the European Union (European Social Fund � ESF) and Greek national funds through the Operational Program 'Education and Lifelong Learning' of the National Strategic Reference Framework (NSRF) - Research Funding Program: ARCHIMEDES III.

Characterization of starch granules from different origin in order to investigate their ability to interact with aroma compounds by inverse gas chromatography

248th National Meeting (2014)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.