ISHS Acta Horticulturae 804: Europe-Asia Symposium on Quality Management in Postharvest Systems - Eurasia 2007
PERFORMANCE OF TIO2 POWDER COATED PACKAGING FILM IN ETHYLENE REMOVAL |
| Authors: | C. Chawengkijwanich, Y. Hayata |
| Keywords: | titanium dioxide, photocatalysis, ethylene, active packaging |
| Abstract:
TiO2 powder-coated packaging film using nanoparticle and microparticle TiO2 were manually prepared on oriented polypropylene film (OPP) by printing method. The film had a slightly white appearance, and TiO2 powders were distributed on the surface of OPP film. Nanoparticle TiO2 powder-coated packaging film showed good photocatalytic activity for the decomposition of ethylene, a primary contaminant in horticultural packaging. Photocatalytic activity for the decomposition of ethylene was decreased when TiO2 particles size was increased. Microparticle TiO2 powder-coated film showed a slightly decomposition of ethylene as compared to nanoparticle TiO2. When applied nanoparticle TiO2-coated packaging film as an ethylene removal packaging, ethylene concentration inside a TiO2-coated packaging film bag of tomato fruits was 70-80% lower than that in an uncoated plastic film bag. This study demonstrates the possibility to apply the TiO2-coated film to quality management as an ethylene removal packaging. | |
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