Myofibrillar Protein Gelation: Viscoelastic Changes Related to Heating Procedures

YOULING L. XIONG, SUZANNE P. BLANCHARD

Research output: Contribution to journalArticlepeer-review

90 Scopus citations

Abstract

Dynamic Theological properties were investigated during gelation of chicken myofibrillar protein as influenced by heating procedures, Thermal scan (1°C/min) of myofibril suspensions in 0.6M NaCl (pH 6.0) induced a major transition in storage modulus (G′, peak 48°C), preceded by a transition in protein‐protein aggregation (46°C) and accompanied by a marked reduction in actomyosin solubility. Preheating at 50°C diminished the transition and resulted in increased final G′value. Isothermal heating produced complex, temperature‐dependent Theological changes (G′and phase angles), particularly within 43–58°C. The rheological transitions of myofibrillar protein were probably related to kinetic changes during formation of elastic gel networks. Such Theological data on gel formation can help predict and control muscle food responses to specific thermal processes.

Original languageEnglish
Pages (from-to)734-738
Number of pages5
JournalJournal of Food Science
Volume59
Issue number4
DOIs
StatePublished - Jul 1994

Keywords

  • Theological transitions
  • chicken muscle
  • gelation
  • myofibrillar protein
  • storage modulus

ASJC Scopus subject areas

  • Food Science

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