Changes in the arabinoxylan fraction of wheat grain during alcohol production

A - Papers appearing in refereed journals

Kosik, O., Powers, S. J., Chatzifragkou, A., Prabhakumari, P. C., Charalampopoulos, D., Hess, L., Brosnan, J., Shewry, P. R. and Lovegrove, A. 2017. Changes in the arabinoxylan fraction of wheat grain during alcohol production. Food Chemistry. 221 (15 April), pp. 1754-1762.

AuthorsKosik, O., Powers, S. J., Chatzifragkou, A., Prabhakumari, P. C., Charalampopoulos, D., Hess, L., Brosnan, J., Shewry, P. R. and Lovegrove, A.
Abstract

Laboratory produced DDGS samples were compared with commercial samples from a distillery and a biofuel plant. Changes in structure, solubility and content of arabinoxylan (AX) was determined. The distillation process results in a relative increase of AX content compared to the starting material. The heating and drying processes involved in the production of DDGS lead to an increased solubility and viscosity of water-extractable AX. Production of DDGS results in structural changes to the AX. There is a decrease in 2- and 3-linked arabinose oligosaccharides, that contributes to around a 50% reduction in arabinosylation in DDGS compared with the starting grains. The current study shows that laboratory-scale DDGS provide an accurate representation of the commercial scale and that the AX composition of DDGS is consistently uniform irrespective of starting material. The uniformity of DDGS and thin stillage makes them a good potential source of AX for production of prebiotics or other novel products.

KeywordsDDGS; distillers dried grains with solubles; dietary fibre; AX; arabinoxylan; viscosity; solubility
Year of Publication2017
JournalFood Chemistry
Journal citation221 (15 April), pp. 1754-1762
Digital Object Identifier (DOI)doi:10.1016/j.foodchem.2016.10.109
Open accessPublished as ‘gold’ (paid) open access
FunderBiotechnology and Biological Sciences Research Council
Funder project or codeDesigning Seeds for Nutrition and Health (DS)
Wheat
Development of a process scheme for the production of high value functional products from DDGS
Design Cereal Seeds [Shewry/Mitchell]
PhytoPath, an infrastructure for hundreds of plant pathogen genomes [2014-2017]
Publisher's version
Copyright license
CC BY
Output statusPublished
Publication dates
Online24 Oct 2016
Publication process dates
Accepted23 Oct 2016
PublisherElsevier
Elsevier Sci Ltd
ISSN0308-8146

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