Browse > Article
http://dx.doi.org/10.9721/KJFST.2015.47.6.733

Development of the Functional Films Coated with Nano-TiO2 Particles for Food Packaging and Removal of Off-flavor from Soybean Sprouts  

Choi, Yeonwook (Department of Packaging, Yonsei University)
Jeon, Kyu Bae (Department of Packaging, Yonsei University)
Song, Kihyeon (Department of Packaging, Yonsei University)
Kim, Jai Neung (Department of Packaging, Yonsei University)
Publication Information
Korean Journal of Food Science and Technology / v.47, no.6, 2015 , pp. 733-737 More about this Journal
Abstract
For testing the ultraviolet (UV)-blocking property of functional films coated with Nano-$TiO_2$ particles, UV-Vis spectra of oriented polypropylene (OPP) films uncoated and coated with $TiO_2$ of 3% and 5% in Polyurethane (PU) and polyvinyl butyral (PVB)-Cellulose binders were measured. The result of UV-Vis analyses showed that the film coated with 5% $TiO_2$ in PVB binders had a significant effect on UV protection of 90% compared with the film uncoated. Also The result of The photodegradation of methylene blue (MB), OPP films coated with 5% in both PU and PVB binders had a high photocatalytic activity for MB degradation. To evaluate the effect of the developed functional film coated with Nano-$TiO_2$ particles, fresh soybean sprouts were used. Nano-$TiO_2$ coated film was observed to decompose the off-flavor produced by soybean sprouts within packages during distribution, but uncoated film did not. Therefore, Nano-$TiO_2$ coated film package could give the greatest effect in extending the shelf life of soybean sprouts.
Keywords
nano-$TiO_2$; soybean sprouts; oriented polypropylene-film; off-flavor;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Lee JH. Food industry and nutrition. Korean J. Food Nutr. 3: 8-13 (1998)
2 Choi HD, Kim SS, Hong HD, Lee JY. Comparison of physicochemical and sensory characteristics of soybean sprouts from different cultivars. J. Korean Soc. Appl. Bi. 43: 207-212 (2000)
3 Lee YS, Kim YH, Kim SB. Changes in the respiration, growth, and vitamin C content of soybean sprouts in response to chitosan of different molecular weights. Hortscience 40: 1333-1335 (2005)
4 Cho KS, Kim YH, Lee YS. Characterization of off-flavors from film-packed soybean sprouts. Korean J. Crops Sci. 51: 220-226 (2006)
5 Toyoda M, Nanbu Y, Nakazawa Y, Hirano M, Inagaki M. Effect of crystallinity of anatase on photoactivity for methyleneblue decomposition in water. Appl. Catal. B-Environ. 49: 227-232 (2004)   DOI
6 Inagaki M, Imai T, Yoshikawa T, Tryba B. Photocatalytic activity of anatase powders for oxidation of methylene blue in water and diluted NO gas. Appl. Catal. B-Environ. 51: 247-254 (2004)   DOI
7 Hur JS, Koh YJ. Bactericidal activity and water purification of immobilized $TiO_{2}$ photocatalyst in bean sprout cultivation. Biotechnol. Lett. 24: 23-25 (2002)   DOI
8 Savineau G. Responsive glazing for solar control shading. In: International Conference on Passive and Low Energy Cooling for the Built Environment. May 19-21, Santorini, Greece (2005)
9 Yogi C, Kojima K, Wada N, Tokumoto H, Takai T, Mizoguchi T, Tamiaki H. Photocatalytic degradation of methylene blue by $TiO_{2}$ film and Au particles-$TiO_{2}$ composite film. Thin Solid Films 516: 5881-5884 (2008)   DOI
10 Yamazaki S, Nakamura N. Photocatalytic reactivity of transparent titania sols prepared by peptization of titanium tetraisopropoxide. J. Photoch. Photobiol. A. 193: 65-71 (2008)   DOI