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RP-HPLC and chemometrics for wheat flour protein characterisation in an industrial bread-making process monitoring context


Food Chemistry 139(1-4): 553-562
RP-HPLC and chemometrics for wheat flour protein characterisation in an industrial bread-making process monitoring context
In the baking industry, a difficult task is to keep the quality perceived by the consumer as constant as possible, given the inner variability of flour, e.g. due to different wheat mixtures, harvesting time, etc. Here, we evaluated the influence of flour batches properties on bread quality, considering an industrial bread making process. In particular, flour composition in terms of protein fractions (gliadins, glutenins) has been determined by means of RP-HPLC, to assess the inter- and intra-batch variability of flour mixtures deliveries at a baking plant. Multivariate data analysis allowed evaluation of correlation between flour protein composition and technological properties. A great variability within different deliveries of a same flour batch emerged, as well as a considerable seasonal variability. Correlation models among protein sub-fractions, technological properties and bread quality are difficult to establish; however, the role of the protein profile on flour behaviour in bread making could be highlighted.

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Accession: 055338497

PMID: 23561145

DOI: 10.1016/j.foodchem.2013.01.085



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