Properties of Edible Surimi Film as Affected by Heat Treatment of Film-Forming Solution

• WENG WuYin

  Department of Food Science and Technology, Tokyo University of Marine Science and Technology

• HAMAGUCHI Patricia Yuca

  Department of Food Science and Technology, Tokyo University of Marine Science and Technology

• OSAKO Kazufumi

  Department of Food Science and Technology, Tokyo University of Marine Science and Technology

• TANAKA Munehiko

  Department of Food Science and Technology, Tokyo University of Marine Science and Technology

Abstract

The effect of heat treatment of film-forming solutions on the properties of edible surimi films was investigated. The film-forming solutions prepared at pH 3 from frozen Alaska pollack surimi were heated to 45, 70 or 100°C to promote unfolding of surimi protein molecules. As a result, solubility, surface hydrophobicity, and reactive SH group of surimi proteins increased. After 45°C -treatment, the mechanical properties, film solubility, and protein solubility of surimi films were not affected and myosin heavy chain (MHC) of surimi proteins was degraded by endogenous acid proteinases. Conversely, at higher heating temperatures (70°C, 100°C), degradation of MHC was effectively inhibited and mechanical properties were improved, while the film solubility and protein solubility of surimi films decreased. It is revealed that the prevention of MHC degradation by heat treatment could improve mechanical properties of surimi films. The optimum condition was found to be heating the film-forming solutions (pH 3) at 70°C for 20min.

Journal

• Food Science and Technology Research

  Food Science and Technology Research 13 (4), 391-398, 2007

  Japanese Society for Food Science and Technology

Keywords

• Edible film
• Mechanical properties
• Heat treatment
• Alaska pollack surimi

Details

• CRID: 1390282679431040512
• NII Article ID: 10019973105
• NII Book ID: AA11320122
• DOI: 10.3136/fstr.13.391
• ISSN: 18813984
• ISSN: 13446606
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed