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KMID : 0380620150470060733
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Korean Journal of Food Science and Technology
2015 Volume.47 No. 6 p.733 ~ p.737
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Development of the Functional Films Coated with Nano-TiO2 Particles for Food Packaging and Removal of Off-flavor from Soybean Sprouts
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Choi Yeon-wook
Jeon Kyu-Bae
Song Ki-hyeon
Kim Jae-Neung
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Abstract
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For testing the ultraviolet (UV)-blocking property of functional films coated with Nano-TiO2 particles, UV-Vis spectra of oriented polypropylene (OPP) films uncoated and coated with TiO2 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% TiO2 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- TiO2 particles, fresh soybean sprouts were used. Nano-TiO2 coated film was observed to decompose the off-flavor produced by soybean sprouts within packages during distribution, but uncoated film did not. Therefore, Nano-TiO2 coated film package could give the greatest effect in extending the shelf life of soybean sprouts.
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KEYWORD
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nano-TiO2, soybean sprouts, oriented polypropylene-film, off-flavor
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