Characterizations of fish gelatin films added with gellan and κ-carrageenan

Yudi Pranoto, Chong Min Lee, Hyun Jin Park

Research output: Contribution to journalArticle

157 Citations (Scopus)

Abstract

Fish gelatin is known to be inferior to mammalian gelatins. Gellan and κ-carrageenan were added to improve properties of the fish gelatin films. Initially, polysaccharides were added to make fish gelatin gels, and tested for the melting point. Mechanical, barrier, color and microstructure properties, as well as Fourier transform infrared (FTIR) and thermal analysis (DSC) of the modified fish gelatin films were evaluated. The addition of gellan and κ-carrageenan increased the melting point of fish gelatin gels, gellan being more effective. Polysaccharides modified fish gelatin films by increasing tensile strength and barrier against water vapor, but made films slightly darker. Scanning electron microscopy (SEM) microstructure analysis revealed that gellan eliminated cracks present in the film matrix resulting in a more uniform structure. FTIR and DSC analyses showed that both polysaccharides effectively interacted with fish gelatin, and moreover, gellan being more effective. Overall, addition of gellan up to 2 g/100 g of gelatin performed better in enhancing fish gelatin films properties.

Original languageEnglish
Pages (from-to)766-774
Number of pages9
JournalLWT - Food Science and Technology
Volume40
Issue number5
DOIs
Publication statusPublished - 2007 Jun 1

Fingerprint

Carrageenan
carrageenan
gelatin
Fish
Fishes
Gelatin
fish
Polysaccharides
Fourier Analysis
polysaccharides
Freezing
Melting point
melting point
Fourier transforms
Gels
microstructure
Infrared radiation
Microstructure
gelatin film
gellan gum

Keywords

  • Carrageenan
  • Film
  • Fish gelatin
  • Gellan
  • Properties

ASJC Scopus subject areas

  • Food Science
  • Engineering (miscellaneous)

Cite this

Characterizations of fish gelatin films added with gellan and κ-carrageenan. / Pranoto, Yudi; Lee, Chong Min; Park, Hyun Jin.

In: LWT - Food Science and Technology, Vol. 40, No. 5, 01.06.2007, p. 766-774.

Research output: Contribution to journalArticle

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