The Effects of ZnOnanorodson the Characteristics of Sago Starch Biodegradable Films

محورهای موضوعی :

R. Alebooyeh ¹ ()
A. MohammadiNafchi ² ()
M. Jokr ³ ()

تاریخ دریافت : 1391/11/09 تاریخ پذیرش : 1397/08/07 تاریخ انتشار : 1391/09/11

کلید واژه: Physicochemical properties, Antimicrobial properties, Biodegradable film, ZnOnanorods,

چکیده مقاله :

: Nowadays tend to use biodegradable packaging; including edible coatings and films for free from synthetic chemicals and do not cause environmental pollution, the industry is growing day by day. The aim of this research was to preparation and characterization of biodegradable films supported with ZnOnanorods. In this study, sago starch based films were prepared and   plasticized with sorbitol/ glycerol by casting method. ZnOnanorod with 0, 1, 3and 5%(w/w)was added to the films before casting the films. Films were dried at controlled conditions. Physicochemical properties such as water absorption capacity (WAC), permeability to water vapor (WVP) and water solubility of the films were measured.  Also, the effects of addition of nano particles were measured on the antimicrobial properties of the films by agar diffusion method. Results showed that by increasing concentration of ZnOnanorod, solubility in water, WAC, and WVP of the films significantly (p <0.05) decreased. Furthermore, the addition of zinc oxide nanorods showed antimicrobial properties against E. Coli. In summary sago starch films supported with ZnOnanorodscan were used as active packaging for agricultural products as well as food industry. 

منابع و مأخذ:

1. Siracusa, V., Rocculi, P., Romani, S., & Rosa, M. D. (2008). Biodegradable polymers for food packaging: a review. Trends in Food Science and Technology, 19(12), 634-643.
2. Jagannath, J. H., Nadanasabapathi, S., &Bawa, A. S. (2006). Effect of starch on thermal, mechanical, and barrier properties of low density polyethylene film.Journal of Applied Polymer Science, 99(6), 3355-3364.
3. Darder, M., Aranda, P., Ruiz-Hitzky, E., 2007. Bionanocomposites: a new concept ofecological, bioinspired, and functional hybrid materials. Advanced Materials 19(10), 1309ââ‚‌“1319.
4. Fu, L., Liu, Z., Liu, Y., Han, B., Hu, P., Cao, L., Zhu, D., 2005. Beaded cobalt oxide nanoparticles along carbon nanotubes: towards more highly integrated electronic devices. Advanced Materials 17 (2), 217ââ‚‌“221.
5. Narayanamurti, V., 2006. Frontiers in nanoscience and technology in the 21stcentury and new models for research and education at the intersection of basicresearch and technology. ASME Conference Proceedings 2006 (47608), 1203ââ‚‌“1204
6. Kurian, M., Dasgupta, A., Galvin, M.E., Ziegler, C.R., Beyer, F.L., 2006. A novel route toinducing disorder in model polymer-layered silicate nanocompositesMacromolecules 39 (5), 1864ââ‚‌“187
7. Karim, A.A., Tie, A.P.L., Manan, D.M.A., Zaidul, I.S.M., 2008. Starch from the sago (Metroxylonsagu) palm tree ââ‚‌“ properties, prospects, and challenges as a new industrial source for food and other uses. Comprehensive Reviews in Food Science and Food Safety 7 (3), 215ââ‚‌“228.
8. Ma, X., Chang, P.R., Yang, J., Yu, J., 2009. Preparation and properties of glycerolplasticized-pea starch/zinc oxide-starch bionanocomposites. CarbohydratePolymers 75 (3), 472ââ‚‌“478.
9. Lin, W., Xu, Y., Huang, C.-C., Ma, Y., Shannon, K., Chen, D.-R., Huang, Y.-W., 2009b. Toxicity of nano- and micro-sized ZnO particles in human lung epithelial cells. Journal of Nanoparticle Research 11 (1), 25ââ‚‌“39.
10. Li, J.H., Hong, R.Y., Li, M.Y., Li, H.Z., Zheng, Y., Ding, J., 2009. Effects of ZnO nanoparticles on the mechanical and antibacterial properties of polyurethane coatings. Progress in Organic Coatings 64 (4), 504ââ‚‌“509.
11. Zhang, L., Jiang, Y., Ding, Y., Daskalakis, N., Jeuken, L., Povey, M., Oââ‚‌™Neill, A., York, D., 2010. Mechanistic investigation into antibacterial behaviour of suspensions ZnO nanoparticles against E. coli. Journal of Nanoparticle Research 12 (5), 1625-1636.
12. Shahrom, M., Abdullah, M.J., 2007. Tapered head of ZnOnanorods. Journal of Solid
13. State Science and Technology 15 (1), 108ââ‚‌“115.
14. Abdorreza, M.N., Cheng, L.H., Karim, A.A., (2011). Effects of plasticizers on thermal properties and heat sealability of sago starch films. Food Hydrocolloids 25(1), 56-60.
15. ASTM (2005b) Standard Test Methods for Water Vapor Transmission of Materials E96/E96M-05. Annual Book of ASTM Standards. Philadelphia, PA
16. Maizura, M., Fazilah, A., Norziah, M. H. & Karim, A. A. (2007) Antibacterial Activity and Mechanical Properties of Partially Hydrolyzed Sago Starchââ‚‌“Alginate Edible Film Containing Lemongrass Oil. Journal of Food Science, 72, C324-C330.
17. Sawai, J., 2003. Quantitative evaluation of antibacterial activities of metallic oxide powders (ZnO, MgO and CaO) by conductimetric assay. Journal of Microbiological Methods 54 (2), 177ââ‚‌“182.
18. .Nielsen, L.E., 1967. Models for the permeability of filled polymer systems.Journal of Macromolecular Science. Part A ââ‚‌“ Chemistry 1 (5), 929ââ‚‌“942