Antimicrobial films based on Na-alginate and κ-carrageenan

Dong Su Cha, Jin Hyuk Choi, Manjeet S. Chinnan, Hyun Jin Park

Research output: Contribution to journalArticle

121 Citations (Scopus)

Abstract

Na-alginate- and κ-carrageenan-based antimicrobial films were prepared, to examine their antimicrobial effect and mechanical properties. Antimicrobial agents: lysozyme, nisin, grape fruit seed extract (GFSE) and ethylenediaminetetraacetic acid (EDTA) were incorporated into films, both alone and in combination. Na-alginate-based films exhibited larger inhibitory zones compared to κ-carrageenan-based films even within similar combinations and levels of antimicrobial agents. GFSE-EDTA in both Na-alginate-and κ-carrageenan-based films showed inhibitory effect against all indicator microorganisms. Tensile strength (TS) values were weaker and elongations (E) before breakage less frequent for films with antimicrobial compounds compared to that of films without the antimicrobial compounds.

Original languageEnglish
Pages (from-to)715-719
Number of pages5
JournalLWT - Food Science and Technology
Volume35
Issue number8
DOIs
Publication statusPublished - 2002

Keywords

  • Antimicrobial agent
  • Antimicrobial film
  • Inhibitory zone
  • Na-alginate
  • κ-carrageenan

ASJC Scopus subject areas

  • Food Science

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