Journal of Food Processing & Technology

Antimicrobial effect of nanocomposite films made of Cloisite 30B metal nanoparticles in soy burger

European Food Chemistry & Eating Disorder Congress

July 26-27, 2018 | Amsterdam, Netherlands

Faranak Beigmohammadi

Islamic Azad University, Iran

Posters & Accepted Abstracts: J Food Process Techno

Abstract:

This study was undertaken to investigate the ability of different kinds of nanocomposite films made of Cloisite-30B with different percentage of silver and copper oxide nanoparticles incorporated into a low-density polyethylene (LDPE) polymeric matrix by a melt mixing method in order to inhibit the growth of microorganism in soy burger. The number of surviving cells of the total count was decreased by 3.61 log and mold and yeast diminished by 2.01 log after eight weeks storage at 18�0.5�C while pure LDPE did not have any antimicrobial effect. A composition of 1.3% Cloisite 30B-Ag and 2.7% Cloisite 30B-CuO for total count and 0% Cloisite 30B-Ag and 4% Cloisite 30B-CuO for yeast and mold gave optimum points in combined design test in Design-Expert 7.1.5. Suitable microbial models were suggested for retarding above microorganism???s growth in soy burger. To validate the optimum point, the difference between the optimum point of nanocomposite film and its repeat was not significant (p<0.05) by one-way ANOVA analysis using SPSS software, while the difference was significant for pure film. Migration of metallic nanoparticles into a food stimulant was within the accepted safe level.

Biography :

E-mail: faranakbm@yahoo.com