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Unraveling the Structural Puzzle of the Giant Glutenin Polymer-An Interplay between Protein Polymerization, Nanomorphology, and Functional Properties in Bioplastic Films
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology, Polymeric Materials. Swedish Univ Agr Sci, Dept Plant Breeding, Växtskyddsvägen 1, SE-23053 Alnarp, Sweden.ORCID iD: 0000-0003-4305-2743
Lund Univ, MAX IV Lab, Box 118, SE-22100 Lund, Sweden..
Swedish Univ Agr Sci, Dept Plant Breeding, Vaxtskyddsvagen 1, SE-23053 Alnarp, Sweden..
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology, Polymeric Materials.ORCID iD: 0000-0002-6071-6241
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2018 (English)In: ACS OMEGA, ISSN 2470-1343, Vol. 3, no 5, p. 5584-5592Article in journal (Refereed) Published
Abstract [en]

A combination of genotype, cultivation environment, and protein separation procedure was used to modify the nanoscale morphology, polymerization, and chemical structure of glutenin proteins from wheat. A low-polymerized glutenin starting material was the key to protein-protein interactions mainly via SS cross-links during film formation, resulting in extended beta-sheet structures and propensity toward the formation of nanoscale morphologies at molecular level. The properties of glutenin bioplastic films were enhanced by the selection of a genotype with a high number of cysteine residues in its chemical structure and cultivation environment with a short grain maturation period, both contributing positively to gluten strength. Thus, a combination of factors affected the structure of glutenins in bioplastic films by forming crystalline beta-sheets and propensity toward the ordered nanostructures, thereby resulting in functional properties with high strength, stiffness, and extensibility.

Place, publisher, year, edition, pages
AMER CHEMICAL SOC , 2018. Vol. 3, no 5, p. 5584-5592
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Polymer Chemistry
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URN: urn:nbn:se:kth:diva-231225DOI: 10.1021/acsomega.7b02081ISI: 000434355300098Scopus ID: 2-s2.0-85047524454OAI: oai:DiVA.org:kth-231225DiVA, id: diva2:1228508
Note

QC 20180628

Available from: 2018-06-28 Created: 2018-06-28 Last updated: 2018-06-28Bibliographically approved

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Rasheed, FaizaHedenqvist, Mikael S.

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