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Volume 3, Issue 4 (Suppl)
Polym Sci
ISSN: 2471-9935 Polym Sci, an open access journal
October 12-13, 2017 Osaka, Japan
Annual Meeting on
Biopolymers and Drug Delivery Systems
Biopolymers Meeting 2017
October 12-13 2017
Page 31
Preparation of intelligence antibacterial films based on low density polyethylene and evaluation of its
properties
Pouria Atabaki Pasdar and B Bahari Aban
Islamic Azad University, Iran
I
n this article, antibacterial film based on Low Density Polyethylene (LDPE), Potassium Sorbate (KS) and ethylene vinyl alcohol
(EVOH) copolymer were prepared and characterized using Scanning ElectronMicroscopy(SEM), transmission electronmicroscopy
(TEM), X-Ray Diffraction (XRD), Differential Scanning Calorimetry (DSC) and tensile tests. The oxygen barrier properties of the
LDPE/EVOH/KS film were significantly better than those of the LDPE/KS film. In addition to barrier properties, the LDPE/EVOH/
KS film also had better elastic modulus than their counterparts without EVOH. The antimicrobial film containing potassium sorbate
decreased the growth rate and maximum growth of yeast and extended the lag period before mold growth was apparent. Therefore, it
can prevent or reduce the rate of microbial spoilage in low viscosity liquids and on the contacted surface area of solid food products
and as the result may prolong the shelf life of food products when it is used as a packaging material. Also, a novel sticker sensor has
been fabricated based on methyl red and tests have been conducted to detect the freshness of meat by its color change in real time
(when the red methyl red paper changed to yellow). These are prepared by entrapping within a pH sensitive dye that responds, through
visible color changes to the spoilage volatile compounds that contribute to a quantity known as Total Volatile Basic Nitrogen (TVBN).
Finally, the methyl red was successfully used as a sticker sensor for the real-time monitoring of meat freshness in ambient and chiller
conditions.
Biography
Pouria Atabaki Pasdar has received Bachelor’s degree in Polymer Engineering from the Islamic Azad University, Science and Research branch, Tehran, Iran and
pursuing Masters in Polymer Engineering in the same university. His current research focuses on investigation of food packaging, bioplastics and nanotechnology
in order to increase the shelf-life of food packages.
atabaki.p@gmail.comPouria Atabaki Pasdar et al., Polym Sci 2017, 3:4
DOI: 10.4172/2471-9935-C1-005