Use of nano-clay (Cloisite Na⁺) improves tensile strength and vapour permeability in agar rich red algae (Gelidium corneum)-gelatin composite films

In this study, we aimed to improve the physical properties of Gelidium corneum-gelatin (GCG) film by including nano-clay in the film-forming solution and tested the antimicrobial properties of the thymol-containing composite film as a packaging material for chicken breast. Addition of nano-clay impr...

Full description

Saved in:
Bibliographic Details
Published in:International journal of food science & technology 2010-09, Vol.45 (9), p.1883-1888
Main Authors: Jang, Sung-Ae, Lim, Geum-Ok, Song, Kyung Bin
Format: Article
Language:English
Subjects:
chickens
Escherichia coli
Gelidium
Gelidium corneum-gelatin film
Listeria monocytogenes
nano-clay
storage
thymol
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this study, we aimed to improve the physical properties of Gelidium corneum-gelatin (GCG) film by including nano-clay in the film-forming solution and tested the antimicrobial properties of the thymol-containing composite film as a packaging material for chicken breast. Addition of nano-clay improved the physical properties of GCG film. The tensile strength of the GCG film containing 1% Cloisite Na⁺ was 38.13 MPa, compared to the 26.65 MPa for the GCG film. The water vapour permeability of the GCG film was 3.56 ng m m⁻²sPa, while that of the GCG film with 1% Cloisite Na⁺ was 3.24 ng m m⁻²sPa. Incorporation of thymol into the film had its antimicrobial activities against Escherichia coli O157:H7 and Listeria monocytogenes. When used to pack chicken breast, the GCG/nano-clay film containing thymol inhibited microbial growth during storage.
ISSN:0950-5423
1365-2621
DOI:10.1111/j.1365-2621.2010.02363.x