Browse > Article
http://dx.doi.org/10.3746/jkfn.2006.35.1.121

Effects of PEG (Polyethylene Glycol) Concentration and Mixing Ratio of PEG/Gly (Glycerol) on the Physical Properties of Silk Fibroin Films  

Ma, Yu-Hyun (Dept. of Food Science & Technology, College of Agriculture & Life Sciences, Chungnam National University)
Song, Kyung-Bin (Dept. of Food Science & Technology, College of Agriculture & Life Sciences, Chungnam National University)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.35, no.1, 2006 , pp. 121-125 More about this Journal
Abstract
To study the effects of plasticizer concentration and its ratio on the physical properties of silk fibroin films, polyethylene glycol (PEG) was used at 4 different concentrations; 1, 2, 3, $4.5\%$ (w/v). Tensile strength (TS) and water vapor permeability (WVP) increased with the increase of PEG concentration, while opposite trend was observed for percent elongation of silk fibroin films. WVP of silk fibroin films increased from $2.54\;ng{\cdot}m/m^2spa$ for $1\%$ of PEG to $5.41\;ng{\cdot}m/m^2sPa$ for $4.5\%$. In addition, a mixture of PEG and glycerol (Gly) as a plasticizer was used at the ratio of 100:0, 75:25, 50:50, 25:75, and 0:100 (w/w). Percent elongation of the films was improved to $130.95\%$ when the ratio of 75:25 was used. On the contrary, WVP of silk fibroin films increased with the decrease of the ratio of PEG:Gly. Effect of the plasticizer concentration and its ratio on the color of silk fibroin films was negligible. These results suggest that mixture of PEG and Gly as a plasticizer provide more flexible than PEG alone in silk fibroin films, and the best ratio of PEG to Gly was 75:25.
Keywords
silk fibroin; protein film; physical properties;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Guilbert S. 1986. Technology and application of edible pro-tective films. In Food Packaging and Preservation, Theory and Practice. Mathlouthi M, ed. Elsevier Applied Science Pud Co, London, England. p 371-394
2 Gennadios A, Weller CL. 1990. Edible films and coatings from wheat and corn proteins. Food Technol 44: 63-69
3 You BJ, Shim JM. 2001. Effect of extracting conditions on the physical properties of fish meal protein isolate film. J Korean Soc Food Sci Nutr 30: 494-499
4 Sothornvit R, Kochta JM. 2001. Plasticizer effect on me-chanical properties of $\beta$-lactoglobulin films. J Food Eng 50: 149-155   DOI   ScienceOn
5 Galietta G, Gioia LD, Guilbert S, Cuq B. 1998. Mechanical and thermomechanical properties of films based on whey proteins as affected by plasticizer and cross-linking agent. J Dairy Sci 81: 3123-3130   DOI   ScienceOn
6 Kim KM, Weller MA, Gennadios A. 2002. Heat curing of soy protein films at atmospheric and sub-atmospheric con-dition. J Food Sci 67: 708-713   DOI   ScienceOn
7 Gennadios A, Weller CL, Hanna MA, Froning GW. 1996. Mechanical and barrier properties of egg albumen films. J Food Sci 61: 585-589   DOI   ScienceOn
8 Rhim JW, Wellwe CL, Harn KS. 1998. Chracteristics of chitosan films as affected by the type of solvent acid. Food Sci Biotechnol 7: 263-268
9 Song TH, Kim CL. 1999. Effect of calcium addition on physicochemical properties of cellulose-based edible films. Korean J Food Sci Thecnol 31: 99-105
10 Choi HK, Hahm JH. 1995. Preparation and structural char-acterization of silk fibroin powder and film. Korean J Seric Sci 37: 142-153   과학기술학회마을
11 Asakura T, Demura M, Tsutsumi M. 1988. $^{23}Na and ^{27}Al$ NMR studies of the interaction between bombyx mori silk fibroin and metal ions trapped in the porous silk fibroin membrane. Makromol Chem Rapid Commun 9: 835-839   DOI
12 Minoura N, Aiba S, Gotoh Y, Tsukada M, Imai Y. 1995. Attachment and growth of cultured fibroblast cells on silk protein matrices. J Biomed Mater Res 29: 1215-1221   DOI   ScienceOn
13 Gennadios A, Weller CL, Testin RF. 1993. Property modi-fication of edible wheat, gluten-based films. Trans ASAE 36: 465-470   DOI
14 Ma Y, Song KB. 2005. Physical properties of silk fibroin films treated with various plasticizer. J Food Sci Nutr 10: 187-190   과학기술학회마을   DOI   ScienceOn
15 Banker GS, Gore AY, Swarbrick J. 1966. Water vapour transmission properties of free polymer films. J Pharm Phaymacol 18: 457-466   DOI
16 Gontard N, Guilbert S, Cuq J. 1993. Water and glycerol as plasticizers affect mechanical and water vapor barrier properties of an edible wheat gluten film. J Food Sci 58: 206-211   DOI   ScienceOn
17 ASTM. 1995. Standard test methods for water vapor transmission of materials. ASTM E 96-95. Annual Book of ASTM Standards. American Society for Testing and Materials. Philadelphia, PA, USA
18 Park H, Manjeet S. 1995. Gas and water vapor barrier properties of edible films form protein and cellulose mate-rials. J Food Eng 25: 497-507   DOI   ScienceOn
19 Clydesdale FM. 1984. Color measurement. In Food Analysis Principles and Techniques. Gruenwedel DW, Whitaker JR, eds. Marcel Dekker, Inc, New York, NY, USA. Vol 1, p 95
20 Hardenburg RE. 1967. Wax and related coatings for hor-ticultural product. A bibliography. Agricultural Research Service Bulletin 51-15, United State Department of Agri-culture, Washington, D.C
21 Krochta JM. 1997. Edible protein films and coatings. In Food Proteins and Their Applications. Damodaran S, Paraf A, eds. Marcel Dekker, Inc, New York, NY, USA. p 529- 550
22 Lee M, Lee S, Ma Y, Park S, Bea D, Ha S, Song KB. 2005. Effect of plasticizer and cross-linking agent on the physical properties of protein films. J Food Sci Nutr 10: 88-91   과학기술학회마을   DOI   ScienceOn
23 Lieberman ER, Gilbert SG. 1973. Gas permeation of col-lagen films as affected by cross-linking, moisture, and plas-ticizer content. J Polymer Sci 41: 33-43
24 Park HJ, Weller CL, Vergano PL, Testin RF. 1993. Per-meability and mechanical properties of cellulose-based edible films. J Food Sci 58: 1361   DOI   ScienceOn
25 Park HJ, Bunn JM, Weller CL, Vergano PL, Testin RF. 1994. Water permeability and mechanical properties of grain protein-based films as affected by mixture of polyethylene glycerol and glycerin plasticizers. Trans ASAE 37: 1281- 1285   DOI
26 Lee S, Lee MS, Song KB. 2003. Effect of $\gamma$-irradiation on physico-chemical properties of zein films. J Food Sci Nutr 8: 343-348   과학기술학회마을   DOI   ScienceOn
27 Qian J, Liu Y, Lui H, Yu T, Deng J. 1996. An amperometric new methylene blue N-mediating sensor for hydrogen peroxide based on regenerated silk fibroin as an immo-bilization matrix for peroxidase. Analytical Biochemistry 236: 208-214   DOI   ScienceOn
28 Donhowe IG, Fennema O. 1993. The effect of plasticizers on crystallinity, permeability, and mechanical properties of methylcellulose films. J Food Process Preserv 17: 247-257   DOI   ScienceOn
29 McHugh TH, Kochta JM. 1994. Sorbitol vs glycerol plas-ticized whey protein edible films: integrated oxygen per-meability and tensile property evaluation. J Agric Food Chem 42: 841-845   DOI   ScienceOn
30 Cuq B, Gontard N, Cuq JL, Guilbert S. 1997. Selected func-tional properties of fish myofibrillar protein-based films as affected by hydrophilic plasticizer. J Agric Food Chem 45: 622-626   DOI   ScienceOn
31 Yang SB, Cho SY, Rhee C. 1997. Preparation of edible films from soybean meal. Korean J Food Sci Technol 29: 452- 459   과학기술학회마을
32 Banker GS. 1966. Film coating theory and practice. J Pharm Sci 55: 81   DOI
33 ASTM. 1995. Standard test methods for tensile properties of thin plastic sheeting. ASTM D 882-91. Annual Book of ASTM Standards, American Society for Testing and Ma-te-rials. Philadelphia, PA, USA