Preventive Nutrition and Food Science

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Physical Properties of Silk Fibroin Films Treated with Various Plasticizers

  • Ma, Yu-Hyun (Department of Food Science & Technology, College of Agriculture & Life Sciences, Chungnam National University) ;
  • Song, Kyung-Bin (Department of Food Science & Technology, College of Agriculture & Life Sciences, Chungnam National University)
  • Published : 2005.06.01
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Abstract

Silk fibroin (SF) films were prepared using various plasticizers and their physical properties were determined. Polyethylene glycol (PEG)-SF and polypropylene glycol (PPG)-SF films had tensile strengths (TS) of 23.71 MPa and 24.51 MPa, respectively, whereas the glycerol (G)-SF film had the lowest TS of 14.24 MPa. G-SF film had the highest $\%$ elongation, compared to PPG-SF and PEG-SF films. Water vapor permeability (WVP) of SF films varied with addition of plasticizers, and PEG-SF film had the lowest WVP. There was no significant difference in Hunter L value among treatments, but PEG-SF film had higher Hunter a and b values. These results suggest that SF film could be applied to food packaging and that the addition of plasticizers should improve the physical properties of SF film.

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References

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