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

作者：Jang Sung Ae; Lim Geum Ok; Song Kyung Bin^*

来源：International Journal of Food Science and Technology, 2010, 45(9): 1883-1888.

DOI：10.1111/j.1365-2621.2010.02363.x

• Chicken
• Gelidium corneum-gelatin film
• nano-clay
• storage
• thymol

P>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.

• 出版日期2010-9