Journal of Bioresources and Bioproducts. 2018, 3(3) 107-111
Peer-Reviewed
From Fig. 5 we can observe that the water absorption of the films emerged vast change in the first 2 hours. The curve didn ’ t mark the water adsorption of the pure gelatin film for much damage in a few minutes. Moreover, the water adsorption of the composite film is lower than pure gelatin film, and the result showed that the water adsorption was decreasing with the raise of MFC (391.1% contain 1.0% MFC). Generally, the cross-linking of gelatin molecules would promote a reduction in the swelling of composite. The result illustrated MFC benefited the formation of more cross-linkage and net structure between gelatin and MFC. 25
3. Jatariu A. N. ˈ Danu M. ˈ Peptu C. A. ˈ et al ˊ Ionically and covalently cross-linked hydrogels based on gelatin and chitosan[J]. Soft Ma-ter., 2013, 11: 45-54 ˊ 4. Zhai M., Zhao L., Yoshii F., et al. Study on antibacterial starch/chitosan blend film formed under the action of irrasiation [J]. Carbohydrate Polymers, 2004, 57(1): 83-88. 5. Khandal D., Aggarwal M., Suri G., et al. Electron beam irradiation of maltodextrin and cinnamyl alcohol mixtures: Influence of glycerol on cross-linking [J]. Carbohydrate Polymers, 2015, 117: 150-159 6. Li C. S., Yang H. S. Effects of salt and sugar addition on the physicochemical properties and nanostructure of fish gelatin[J]. Food Hydrocolloids, 2015(45): 72-82. 7. Paulraj K., Jong W. R. Physicochemical properties of gelatin/silver nanoparticle antimicrobial composite films[J]. Food Chemistry. 2014, 148: 162-169. 8. Gholamreza K., Seyed M. M., Seyed M. A., et al. Investigation of gelatin/multi-walled carbon nanotube nanocomposite films as packaging materials[J]. Food Science & Nutrition, 2014, 2(1):65-73. 9. Gholamreza K., Seyed M. M., Amin M. P., et al. Antioxidant and antibacterial properties of gelatin films incorporated with carvacrol[J]. Journal of Food Safety, 2013, 33: 423-432. 10. Ioannis A., Atsuyoshi N., Sei-ichi A. Edible films made from hydroxypropyl starch and gelatin and plasticized by polyols and water[J]. Carbohydrate Polymers. 1998, 36(2-3 ˅ :105-119. 11. Karnnet S., Potiyaraj P., Pimpan V. Preparation and properties of biodegradable stearic acid-modified gelatin films [J]. Ploymer Degradation and Stability, 2005, 90(1): 106-110. 12. Ho J. B., Duncan O. D., Robert M. K., et al. Effects of transglutaminase-induced cross-linking on properties of fish gelatin-nanoclay composite film[J]. Food Chemsitry, 2009, 114(1): 180-189. 13. Chen T H, Embree H D, Brown E M, et al. Enzyme-catalyzed gel formation of gelatin and chitosan: potential for in situ applications. Biomaterials, 2003, 24(17): 2831-2841. 14. Kubicki, Vincent H. C., Linghao Z.. Cellulose Microfibril Twist, Mechanics and Implication for Cellulose Biosynthesis[J]. Journal of Physical Chemistry A, 2013, 117 (2): 2580-2589. 15. Persson, Bo N. J., Ganser, Christian, Schmied. Adhesion of cellulose fibers in paper[J]. Journal of Physics: Condensed Matter, 2013, 25 (4): 45002-45012. 16. Li X. G., Huang M. R., Hu L., et al. Cellulose derivative and liquid crystal blend membranes for oxygen enrichment [J]. European Polymer Journal, 1999, 35(1):157-166. 17. Xu B.H. Preparation and Analysis of Super Absorbent Resin from Cellulose[D]. Beijing: Beijing Forestry University, 2008. 18. Wu D. P. Biomedical Natural Polymer Fiber Material [J].Foreign Silk, 2008 ˈ (3): 27-28. 19. Hubber M. A. Rojas O. J., Lucia L. A., et al. Bioresources.2008,3(3):929. 20. Cheng Q., Wang S., Rials T. G. Composites: Part A, 2009, 40(2): 218. 21. Umma H., Md S. I., Tawsif A., Siddique, Amalina M. A., Bee C. A. Adsorption and photocatalytic degradation of anionic dyes on Chitosan/PVA/Na-Titanate/TiO 2 composites
Fig.5. Water absorption curves of gelatin/MFC composite films with various MFC mass concentrations: 0.0% (a), 0.2% (b), 0.4% (c), 0.6% (d), 0.8% (e), 1.0% (f).
4. CONCLUSIONS
Gelatin/MFC composite films with improved mechanical properties were fabricated by solution casting method with various MFC mass concentrations. With the addition of MFC, the tensile strength increased and the elongation at break decreased. MFC addition decreased the water adsorption and the light transmittance of the gelatin films. ACKNOWLEDGMENTS The authors are grateful for the support of the Natural Science Foundation of Qinghai Province, China, Grant No. 2015-ZJ-909. REFERENCES 1. Veis A. The macromolecular chemistry of gelatin. New York: Academic Press,1964. 2. Jiang M. K., Liu S. Y., Du X., et al. Physical properties and internal microstructures of films made from catfish skin gelatin and triacetin mixtures[J].Food Hydrocolloids, 2010, 24: 105-110 ˊ
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