Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 400573
Title Prediction of the state diagram of starch water mixtures using the Flory--Huggins free volume theory
Author(s) Sman, R.G.M. van der; Meinders, M.B.J.
Source Soft Matter 7 (2011)2. - ISSN 1744-683X - p. 429 - 442.
DOI http://dx.doi.org/10.1039/c0sm00280a
Department(s) Food Process Engineering
FBR Food Technology
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) glass-transition temperatures - phase-transitions - aqueous-solutions - physicochemical properties - light-scattering - molecular-weight - corn starch - thermal characterization - crystalline polymorph - scanning calorimetry
Abstract In this paper we analyse the phase and state transitions of starch and other glucose homopolymers and oligomers using the free volume extension of the Flory–Huggins theory by Vrentas and Vrentas, combined with the Couchman–Karasz theory for the glass transition. Using scaling relations of model parameters with molar weight we have obtained accurate predictions of moisture sorption and the freezing, boiling, and melting data obtained from literature for starch, dextrans, pullulan and maltodextrins. With the estimated model parameters we can construct the complete state diagram for starch, which can now be used as a quantitative tool for design and analysis of food structuring processes.
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