Image and chemical analyses of freezing-induced aggregates of fish natural actomyosin as affected by various phosphate compounds

Jinhwan Lee, Hyeon Woo Park, Ronald Jenkins, Won Byong B. Yoon, Jae W. Park

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The impact of various phosphate compounds [sodium tripolyphosphate (STPP), tetrasodium pyrophosphate (TSPP), STPP/TSPP, trisodium pyrophosphate (3SP), sodium hexametaphosphate (SHMP), and disodium phosphate anhydrous (DSPA)] on retarding freeze-induced protein denaturation and aggregation was evaluated. Using natural actomyosin (NAM) extracted from fresh Pacific whiting, the phosphate treatments were evaluated at various concentrations (0.1%, 0.3%, and 0.5%), with and without cryoprotectants (CP) (4% sorbitol and 5% sugar), after different freeze/thaw cycles (F/TC) (0, 3, and 9F/TC). Trimethylamine-N-oxide demethylase (TMAOase) activity, formaldehyde (FA) content, solubility, and turbidity were measured. The other NAM mixture containing the 0.5% STPP/TSPP, STPP, or TSPP along with CP showed low TMAOase activity, low FA production, high salt-soluble proteins solubility, and high turbidity. Among the phosphate treatments, STPP seemed to be the most effective compound in retarding both FA- and freeze-induced protein denaturation and aggregation. NAM without CP was more rapidly denatured and aggregated than NAM with CP as F/TC increased, resulting in a gradual increase in the degree of aggregation (DA). The DA, which was calculated based on graphical images, correlated with biochemical properties.

Original languageEnglish
Pages (from-to)57-64
Number of pages8
JournalFood Bioscience
Volume19
DOIs
Publication statusPublished - 2017 Sep 1
Externally publishedYes

Fingerprint

sodium tripolyphosphate
Actomyosin
Freezing
Fish
pyrophosphates
cryoprotectants
freezing
Fishes
Phosphates
phosphates
Agglomeration
formaldehyde
Formaldehyde
fish
Denaturation
trimethylamine
freeze-thaw cycles
Protein Denaturation
Turbidity
turbidity

Keywords

  • Fish natural actomyosin
  • Freezing/thawing
  • Merluccius productus
  • Natural actomyosin
  • Pacific whiting

ASJC Scopus subject areas

  • Food Science
  • Biochemistry

Cite this

Image and chemical analyses of freezing-induced aggregates of fish natural actomyosin as affected by various phosphate compounds. / Lee, Jinhwan; Park, Hyeon Woo; Jenkins, Ronald; Yoon, Won Byong B.; Park, Jae W.

In: Food Bioscience, Vol. 19, 01.09.2017, p. 57-64.

Research output: Contribution to journalArticle

Lee, Jinhwan ; Park, Hyeon Woo ; Jenkins, Ronald ; Yoon, Won Byong B. ; Park, Jae W. / Image and chemical analyses of freezing-induced aggregates of fish natural actomyosin as affected by various phosphate compounds. In: Food Bioscience. 2017 ; Vol. 19. pp. 57-64.
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