Improving wet strength of soy protein films using oxidized sucrose

Linyun Liu, Zhize Chen, Bijia Wang, Yiqi Yang

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


The chemical modification of soy protein isolate (SPI) with various amounts of oxidized sucrose was performed in this study. The poor mechanical properties and lack of hydrolysis resistance of SPI have limited its applications in various fields. Although chemical modification proved to be an effective method to enhance the properties of SPI films, current SPI modifiers are either expensive, toxic, or do not impart the satisfiable properties to the modified materials. In this research, the possibility of modification of SPI films using oxidized sucrose to improve their strength and stability was examined. At optimal conditions, oxidized sucrose-modified SPI films showed about 50% higher wet strength than the control films. The melting temperature of modified SPI film was 26C higher than the unmodified control.

Original languageEnglish (US)
JournalJournal of Applied Polymer Science
Issue number7
StatePublished - Feb 1 2015


  • biopolymers and renewable polymers
  • crosslinking
  • films
  • proteins

ASJC Scopus subject areas

  • General Chemistry
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry


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