Evaluation of antimicrobial activity of Poly Lactic Acid (PLA) films containing cellulose nanoparticle and Bunium persicum and Mentha pepperita essential oils (EOs)

Authors

  • Abolfazl Kamkar Department of Food Hygiene, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
  • Ali Khanjari Department of Food Hygiene, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
  • Ali MIsaghi Department of Food Hygiene, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
  • Fazeleh Talebi Department of Food Hygiene, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
  • Hassan Gandomi Department of Food Hygiene, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
  • Masoumeh Saeedi Department of Food Hygiene, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
Abstract:

BACKGROUND: Packaging is one of the important aspect of food quality and safety. Unfortunately, most of food packaging materials are from oil resources that are limited resources and undegradable. OBJECTIVES: The aim of this study was reaching an environmentally friendly packaging with enhancement safety of food. METHODS: After obtaining Bunium persicum (BP) and Mentha pepperita (MP) essential oils (EOs) by steam distillation method, their chemical compositions were determined using GC-MS analysis. PLA films were prepared using solvent casting technique containing different concentrations of BP (0, 0.5 and1%v/v), MP (0, 0.5 and1%v/v) EOs and cellulose nanoparticle (CN) (0 and 1% w/v) and their antimicrobial effects against gram positive bacteria (Staphylococcus aureus ATCC 65138, Bacillus cereus ATCC 11778) and Gram negative bacteria (Vibrio parahaemolyticus ATCC 43996, Escherichia coli O157:H7 and Salmonella typhymurium ATCC 14028) were assessed by disk diffusion method. RESULTS: Major compounds of BP EO were Propanal 2-methyl-3-phenyl (34.08%), Cymene (18.23%) and Myrtenal (12.37%) and for MP EO were p-Menthan-3-ol (44.59%) and p-Menthan-3-onetrans (12.14%). The results of present study indicated that pure PLA film or PLA films containing CN showed no antimicrobial activity against any of the five tested bacteria but films containing EOs had significant antimicrobial activity and BP EO was more effective than MP EO and their combination (p

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Journal title

volume 11  issue 4

pages  289- 298

publication date 2017-10-01

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