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Gluten Polymer Networks—A Microstructural Classification in Complex Systems

A classification of gluten polymer networks would support a better understanding of structure-function relationships of any gluten polymer material and thus, the control of processing properties. However, quantification and interpretation of the gluten network structures is challenging due to their...

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Autores principales: Lucas, Isabelle, Becker, Thomas, Jekle, Mario
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6403851/
https://www.ncbi.nlm.nih.gov/pubmed/30966651
http://dx.doi.org/10.3390/polym10060617
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author Lucas, Isabelle
Becker, Thomas
Jekle, Mario
author_facet Lucas, Isabelle
Becker, Thomas
Jekle, Mario
author_sort Lucas, Isabelle
collection PubMed
description A classification of gluten polymer networks would support a better understanding of structure-function relationships of any gluten polymer material and thus, the control of processing properties. However, quantification and interpretation of the gluten network structures is challenging due to their complexity. Thus, the network formation was altered by specific gluten-modifying agents (glutathione, ascorbic acid, potassium bromate, glucose oxidase, transglutaminase, bromelain) in this study in order to clarify if structural alterations can be detected on a microstructural level and to specify different polymer arrangements in general. Microstructure analysis was performed by confocal laser scanning microscopy followed by quantification with protein network analysis. It was shown that alterations in gluten microstructure could be elucidated according to the kind of modification in cross-linking (disulphide, (iso) peptide, dityrosyl). Linear correlations of structural network attributes among each other were found, leading to an assertion in general: the higher the branching rate, the thinner the protein threads and the larger the interconnected protein aggregate. Considering the morphological attribute lacunarity, a quantitative classification of different gluten arrangements was established. These assertions were extended by using unspecific gluten-modifying agents in addition to the specific ones. Ultimately, five network types were proposed based on diverse polymer arrangements.
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spelling pubmed-64038512019-04-02 Gluten Polymer Networks—A Microstructural Classification in Complex Systems Lucas, Isabelle Becker, Thomas Jekle, Mario Polymers (Basel) Article A classification of gluten polymer networks would support a better understanding of structure-function relationships of any gluten polymer material and thus, the control of processing properties. However, quantification and interpretation of the gluten network structures is challenging due to their complexity. Thus, the network formation was altered by specific gluten-modifying agents (glutathione, ascorbic acid, potassium bromate, glucose oxidase, transglutaminase, bromelain) in this study in order to clarify if structural alterations can be detected on a microstructural level and to specify different polymer arrangements in general. Microstructure analysis was performed by confocal laser scanning microscopy followed by quantification with protein network analysis. It was shown that alterations in gluten microstructure could be elucidated according to the kind of modification in cross-linking (disulphide, (iso) peptide, dityrosyl). Linear correlations of structural network attributes among each other were found, leading to an assertion in general: the higher the branching rate, the thinner the protein threads and the larger the interconnected protein aggregate. Considering the morphological attribute lacunarity, a quantitative classification of different gluten arrangements was established. These assertions were extended by using unspecific gluten-modifying agents in addition to the specific ones. Ultimately, five network types were proposed based on diverse polymer arrangements. MDPI 2018-06-05 /pmc/articles/PMC6403851/ /pubmed/30966651 http://dx.doi.org/10.3390/polym10060617 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Lucas, Isabelle
Becker, Thomas
Jekle, Mario
Gluten Polymer Networks—A Microstructural Classification in Complex Systems
title Gluten Polymer Networks—A Microstructural Classification in Complex Systems
title_full Gluten Polymer Networks—A Microstructural Classification in Complex Systems
title_fullStr Gluten Polymer Networks—A Microstructural Classification in Complex Systems
title_full_unstemmed Gluten Polymer Networks—A Microstructural Classification in Complex Systems
title_short Gluten Polymer Networks—A Microstructural Classification in Complex Systems
title_sort gluten polymer networks—a microstructural classification in complex systems
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6403851/
https://www.ncbi.nlm.nih.gov/pubmed/30966651
http://dx.doi.org/10.3390/polym10060617
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