Changes in the hierarchical protein polymer structure: urea and temperature effects on the wheat gluten films
(2012) In RSC Advances- Abstract
- Understanding bio-based protein polymer structures is important when designing new materials with desirable properties. Here the effect of urea on the wheat gluten (WG) protein structure in WG–urea films was investigated. Small-angle X-ray scattering indicated the formation of a hexagonal closepacked (HCP) hierarchical structure in the WG–urea materials. The HCP structure was influenced significantly by the urea concentration and processing conditions. The interdomain distance dI
between the HCP scattering objects increased with increasing content of urea and the objects seemed to be oriented in the extrusion direction. Additionally, the effect of temperature on the HCP structure was studied and it was shown that at >=55 C the... (More) - Understanding bio-based protein polymer structures is important when designing new materials with desirable properties. Here the effect of urea on the wheat gluten (WG) protein structure in WG–urea films was investigated. Small-angle X-ray scattering indicated the formation of a hexagonal closepacked (HCP) hierarchical structure in the WG–urea materials. The HCP structure was influenced significantly by the urea concentration and processing conditions. The interdomain distance dI
between the HCP scattering objects increased with increasing content of urea and the objects seemed to be oriented in the extrusion direction. Additionally, the effect of temperature on the HCP structure was studied and it was shown that at >=55 C the HCP structure disappeared. Transmission electron microscopy revealed a rather denatured pattern of both HMW-glutenins and gliadins in the WG–urea films. The molecular packing of the WG protein polymer can be highly affected by an additive and the processing method used. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3163904
- author
- Kuktaite, Ramune ; Plivelic, Tomás LU ; Türe, Hasan ; Hedenqvist, Mikael S. ; Gällstedt, Mikael ; Marttila, Salla and Johansson, Eva
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- in
- RSC Advances
- publisher
- Royal Society of Chemistry
- external identifiers
-
- wos:000312147400042
- scopus:84868353679
- ISSN
- 2046-2069
- DOI
- 10.1039/c2ra21812g
- language
- English
- LU publication?
- yes
- id
- bd5e7e7e-71da-48cf-8740-3c9cb8b67626 (old id 3163904)
- date added to LUP
- 2016-04-01 13:24:09
- date last changed
- 2022-01-27 19:03:02
@article{bd5e7e7e-71da-48cf-8740-3c9cb8b67626, abstract = {{Understanding bio-based protein polymer structures is important when designing new materials with desirable properties. Here the effect of urea on the wheat gluten (WG) protein structure in WG–urea films was investigated. Small-angle X-ray scattering indicated the formation of a hexagonal closepacked (HCP) hierarchical structure in the WG–urea materials. The HCP structure was influenced significantly by the urea concentration and processing conditions. The interdomain distance dI<br/><br> between the HCP scattering objects increased with increasing content of urea and the objects seemed to be oriented in the extrusion direction. Additionally, the effect of temperature on the HCP structure was studied and it was shown that at >=55 C the HCP structure disappeared. Transmission electron microscopy revealed a rather denatured pattern of both HMW-glutenins and gliadins in the WG–urea films. The molecular packing of the WG protein polymer can be highly affected by an additive and the processing method used.}}, author = {{Kuktaite, Ramune and Plivelic, Tomás and Türe, Hasan and Hedenqvist, Mikael S. and Gällstedt, Mikael and Marttila, Salla and Johansson, Eva}}, issn = {{2046-2069}}, language = {{eng}}, publisher = {{Royal Society of Chemistry}}, series = {{RSC Advances}}, title = {{Changes in the hierarchical protein polymer structure: urea and temperature effects on the wheat gluten films}}, url = {{http://dx.doi.org/10.1039/c2ra21812g}}, doi = {{10.1039/c2ra21812g}}, year = {{2012}}, }