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DSC study on the thermal properties of sunflower proteins according to their water content

Authors
Journal
Polymer
0032-3861
Publisher
Elsevier
Publication Date
Volume
42
Issue
26
Identifiers
DOI: 10.1016/s0032-3861(01)00555-9
Keywords
  • Sunflower
  • Proteins
  • Relaxation
Disciplines
  • Biology

Abstract

Abstract The use of sunflower protein isolate for the manufacturing of biodegradable materials by thermomechanical means requires a characterization of its thermal properties. After modelling of its hydration properties, DSC analysis shows a relaxation phenomenon at 60°C and makes it possible, despite the changes in state of the absorbed water, to determine its glass transition temperature. The evolution of this temperature according to the water content of the samples is then modelled and compared to that of more common proteins.

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