Active films from water-soluble chitosan/cellulose composites incorporating releasable caffeic acid for inhibition of lipid oxidation in fish oil emulsions

Shu Huei Yu, Hao Ying Hsieh, Jen Chieh Pang, Deh Wei Tang, Chwen Ming Shih, Min Lang Tsai, Yi Chin Tsai, Fwu Long Mi

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

In this study, antimicrobial and antioxidant active packaging films were prepared from water-soluble chitosan (N,O-carboxymethyl chitosan, NOCC) and cellulose (methylcellulose, MC). Composite films were prepared by directly blending NOCC and MC in water, followed by cross-linking the NOCC/MC composite films with calcium ions. The microstructure, water vapor permeability and mechanical strength of the composite films could be modulated via adjusting the NOCC/MC blending ratio and subsequently cross-linking the films with calcium ions. To prepare active packaging films, a natural phenolic antioxidant, caffeic acid, was incorporated into the composite films in fixed and releasable types. The caffeic acid-incorporated films showed 20-fold increases in antioxidant activity and 6-fold increases in antibacterial activity as compared to the caffeic acid-free composite films. The releasable caffeic acid could be continuously released from the composite films and showed significant inhibitory effect on lipid oxidation of menhaden oil-in-water emulsion. The caffeic acid-based active packaging may be a potential alternative approach to reduced lipid oxidation in fish oil.

Original languageEnglish
Pages (from-to)9-19
Number of pages11
JournalFood Hydrocolloids
Volume32
Issue number1
DOIs
Publication statusPublished - Jul 2013

Keywords

  • Active packaging
  • Caffeic acid
  • Chitosan
  • Fish oil
  • Lipid oxidation

ASJC Scopus subject areas

  • Food Science
  • Chemical Engineering(all)
  • Chemistry(all)

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