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Improving the extractability of arabinoxylans and the molecular weight of wheat endosperm using extrusion processing
Fadel, Abdulmannan Ashworth, Jason Plunkett, Andrew Mahmoud, Ayman M. Ranneh, Yazan Li, Weili
Fadel, Abdulmannan
Ashworth, Jason
Plunkett, Andrew
Mahmoud, Ayman M.
Ranneh, Yazan
Li, Weili
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Other Contributors
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Publication Date
2018-09-14
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Abstract
Cereal derived arabinoxylans (AXs) are non-starch polysaccharides that have immunomodulatory activities. These activities are thought to be related to the low molecular weight fractions of AXs. Wheat and wheat by-products are rich in AXs, however, the water extractable fraction of AXs in wheat products is low. Water extraction of AXs can be improved by extrusion processing, which increases the extractability of the water soluble fraction. The aim of this study was to determine the extractability and molecular weight of the water soluble fraction of AXs from wheat endosperm after extrusion at screw speeds of 80 and 160 rpm. Extrusion processing significantly (P<0.05) increased the water extractability of AXs in a screw-speed dependent manner (13.07±0.12% at 80 rpm and 15.45±0.16% at 160 rpm compared to8.95±0.10% in the non-extruded control) due to a significant increase (P<0.05) in low molecular weight fractions of AXs in extruded samples.
Citation
Fadel, M., Ashworth, J., Plunkett, A., Mahmoud, M. A., Ranneh, Y., and Li, W. (2018). Improving the extractability of arabinoxylans and the molecular weight of wheat endosperm using extrusion processing. Journal of Cereal Science, 84 (November 2018), 55-61. https://doi.org/10.1016/j.jcs.2018.09.009
Publisher
Elsevier
Journal
Journal of Cereal Science
Research Unit
DOI
10.1016/j.jcs.2018.09.009
PubMed ID
PubMed Central ID
Type
Article
Language
en
Description
Series/Report no.
ISSN
0733-5210