Effects of carrageenan on thermal stability of proteins from chicken thigh and breast muscles

Donatus E.N. Amako, Youling L. Xiong

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Thermal stability of ground chicken meat and myofibrillar proteins mixed with κ-, ι-, and λ-carrageenan (CGN) at different NaCl concentrations was investigated with differential scanning calorimetry. Three transitions, characteristic of myosin head (63.3, 62.2°C), sarcoplasmic proteins/myosin tail (67.7, 68.6°C), and actin (78.3, 81.4°C), were observed for nontreated thigh and breast muscles, respectively. The influence of CGNs on the thermal transitions was dependent on salt concentrations. κ-CGN with 2.5% NaCl decreased (P < 0.05) transition temperature (Tmax) of thigh myosin head and actin, while all three CGNs with or without 2.5% salt decreased (P < 0.05) Tmax for breast actin. Total enthalpy of denaturation decreased slightly in the presence of κ-CGN for thigh muscles only. The gum effects on myofibril isolates were variable and were salt-dependent. The results suggested molecular interactions between the gums and meat proteins, but the response of the specific proteins to gums appeared to be muscle type-dependent.

Original languageEnglish
Pages (from-to)247-253
Number of pages7
JournalFood Research International
Volume34
Issue number2-3
DOIs
StatePublished - 2001

Keywords

  • Carrageenan
  • Chicken proteins
  • Thermal stability
  • Thigh and breast muscles

ASJC Scopus subject areas

  • Food Science

Fingerprint

Dive into the research topics of 'Effects of carrageenan on thermal stability of proteins from chicken thigh and breast muscles'. Together they form a unique fingerprint.

Cite this