Abstract:
Titania and 1% Ag-doped Titania nanoparticles prepared by liquid impregnation
method were embedded in polyethylene packagings. Prepared films and nano particles were
then characterized through SEM, XRD and EDS analysis. The effect of nano-packings on
preservation quality of Lettuce (Lactuca sativa) and Spinach (Spinacia oleracea) during room
temperature storage was investigated. Quality indices of both vegetables; Weight loss,
chlorophyll content, moisture content, ascorbic acid, browning index, sensory evaluation and
microbial count of packaging materials were determined after 4 days of storage. The results
showed that the nano-packing materials containing Ag-Ti had a quite beneficial effect on
physicochemical and sensory quality of both vegetables followed by Titania embedded
packaging. Moreover weight loss data along with SEM results confirmed photo degradation
of nano packagings under artificial light (90days period). Therefore, the photodegradable
nano-packagings could be applied as sustainable solution to the plastic waste along with shelf
life and quality improvement of food.
