Effects of plasticizers and nano-clay content on the physical properties of chicken feather protein composite films

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Title
Effects of plasticizers and nano-clay content on the physical properties of chicken feather protein composite films
Author(s)
N B Song; W S Jo; H Y Song; Kyung Sook ChungMi Sun Won; K B Song
Bibliographic Citation
Food Hydrocolloids, vol. 31, no. 2, pp. 340-345
Publication Year
2013
Abstract
To prepare chicken feather protein (CFP)/nano-clay composite films and to evaluate the effects of various plasticizers and nano-clay concentrations on the mechanical properties of the films, CFP composite films with various concentrations of Cloisite Na+ were prepared, and their physical properties such as tensile strength (TS), elongation at break (E), and water vapor permeability (WVP) were investigated. Optimal CFP films were formed with 5 g of CFP, 0.5 g of glycerol, and 1.5 g of sorbitol in 100 mL of film-forming solution; the TS, E, and WVP of the film were 4.74 MPa, 10.08%, and 3.11 × 10-9 g m/m2 s Pa, respectively. After the nano-clay was incorporated into the CFP film-forming solution, scanning electron microscopy and X-ray diffraction studies were conducted to examine the structural characteristics of the CFP/nano-clay composite films. The incorporation of nano-clay improved the physical properties of the CFP films. The TS of the CFP/nano-clay composite film containing 7% Cloisite Na+ increased by 1.21 MPa, and the WVP of the composite film decreased by 1.15 × 10-9 g m/m2 s Pa compared to the CFP film. Therefore, these results suggest that CFP composite films can be prepared with improved mechanical property by the addition of nano-clay and used as a food packaging material in the food industry.
Keyword
Cloisite Na+MicrostructureProtein filmTensile strength
ISSN
0268-005X
Publisher
Elsevier
DOI
http://dx.doi.org/10.1016/j.foodhyd.2012.11.024
Type
Article
Appears in Collections:
Division of Research on National Challenges > 1. Journal Articles
Division of Biomedical Research > Personalized Genomic Medicine Research Center > 1. Journal Articles
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