title: Effect of PLA films containing propolis ethanolic extract, cellulose nanoparticle and Ziziphora clinopodioides essential oil on chemical, microbial and sensory properties of minced beef.
abstract: This study was conducted to examine the effects of polylactic acid (PLA) film containing propolis ethanolic extract (PE), cellulose nanoparticle (CN) and Ziziphora clinopodioides essential oil (ZEO) on chemical, microbial and sensory properties of minced beef during storage at refrigerated temperature for 11days. The initial total volatile base nitrogen (TVB-N) was 8.2mg/100g and after 7days reached to 29.1mg/100g in control, while it was lower than 25mg/100g for treated samples. At the end of storage time in control samples peroxide value (PV) reached to 2.01meqperoxide/1000g lipid, while the values for the treated samples remained lower than 2meqperoxide/1000g lipid. Final microbial population decreased approximately 1-3logCFU/g in treated samples compared to control (P<0.05). Films containing 2% ZEO alone and in combination with different concentrations of PE and CN extended the shelf life of minced beef during storage in refrigerated condition for at least 11days without any unfavorable organoleptic properties.
authors.affiliation: Department of Food Hygiene, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
authors.forename: Nassim
authors.initials: N
authors.lastname: Shavisi
authors.affiliation: Department of Food Hygiene, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
authors.forename: Ali
authors.initials: A
authors.lastname: Khanjari
authors.affiliation: Department of Food Hygiene, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran. Electronic address: aakhond@ut.ac.ir.
authors.forename: Afshin Akhondzadeh
authors.initials: AA
authors.lastname: Basti
authors.affiliation: Department of Food Hygiene, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
authors.forename: Ali
authors.initials: A
authors.lastname: Misaghi
authors.affiliation: Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Razi University, Kermanshah, Iran.
authors.forename: Yasser
authors.initials: Y
authors.lastname: Shahbazi
mesh_terms: D000818:Animals; D002417:Cattle; D002482:Cellulose / Q000737:chemistry*; D015169:Colony Count, Microbial; D000431:Ethanol / Q000737:chemistry; D005506:Food Contamination; D005516:Food Microbiology; D018857:Food Packaging; D005519:Food Preservation; D063427:Food Quality; D061353:Food Storage; D019686:Lamiaceae / Q000737:chemistry; D053758:Nanoparticles / Q000737:chemistry; D009822:Oils, Volatile / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry*; D011091:Polyesters / Q000737:chemistry*; D011429:Propolis / Q000737:chemistry*; D000069466:Red Meat / Q000032:analysis*; D013649:Taste
chemical_list: D009822:Oils, Volatile; D010936:Plant Extracts; D011091:Polyesters; D000431:Ethanol; C033616:poly(lactide); D002482:Cellulose; D011429:Propolis
keywords: Cellulose nanoparticle; Minced beef; Polylactic acid; Propolis extract; Ziziphora clinopodioides essential oil