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.

    We have a manual that explains all the features 

Record number 327757
Title Understanding molecular weight reduction of starch during heating-shearing processes
Author(s) Einde, R.M. van den; Goot, A.J. van der; Boom, R.M.
Source Journal of Food Science 68 (2003)8. - ISSN 0022-1147 - p. 2396 - 2404.
Department(s) Food Process Engineering
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2003
Keyword(s) twin-screw extruder - plasticized wheat-starch - waxy-maize starch - extrusion-cooking - corn meal - in-line - extensional viscosity - functional-properties - rheological behavior - potato starch
Abstract Recent understanding of the mechanisms underlying the changes in molecular weight of starch as a function of process parameters during thermomechanical treatment, for example extrusion, holds promise towards more effective optimization of thermomechanical processes according to the desired modification of molecular weight. This paper summarizes recent advances in theoretical understanding and experimental methods. Empirical observations from extruder experiments can be better understood on this basis. The current status in this field has opened up potential for developing new equipment in which the main process parameters, which normally occur simultaneously, can be separated and optimized. This will create a much wider window for product-oriented process design and for new products.
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