title: Effect of Film-Forming Alginate/Chitosan Polyelectrolyte Complex on the Storage Quality of Pork.
abstract: Meat is one of the most challenging food products in the context of maintaining quality and safety. The aim of this work was to improve the quality of raw/cooked meat by coating it with sodium alginate (A), chitosan (C), and sodium alginate-chitosan polyelectrolyte complex (PEC) hydrosols. Antioxidant properties of A, C, and PEC hydrosols were determined. Subsequently, total antioxidant capacity (TAC), sensory quality of raw/cooked pork coated with experimental hydrosols, and antimicrobial efficiency of those hydrosols on the surface microbiota were analysed. Application analyses of hydrosol were performed during 0, 7, and 14 days of refrigerated storage in MAP (modified atmosphere packaging). Ferric reducing antioxidant power (FRAP) and (2,2-diphenyll-picrylhydrazyl (DPPH) analysis confirmed the antioxidant properties of A, C, and PEC. Sample C (1.0%) was characterized by the highest DPPH value (174.67 μM Trolox/mL) of all variants. PEC samples consisted of A 0.3%/C 1.0% and A 0.6%/C 1.0% were characterized by the greatest FRAP value (~7.21 μM Fe2+/mL) of all variants. TAC losses caused by thermal treatment of meat were reduced by 45% by coating meat with experimental hydrosols. Application of PEC on the meat surface resulted in reducing the total number of micro-organisms, psychrotrophs, and lactic acid bacteria by about 61%, and yeast and molds by about 45% compared to control after a two-week storage.
authors.affiliation: Department of Animal Products Technology and Quality Management, Wroclaw University of Environmental and Life Sciences, Chelmonskiego Street 37, 51-630 Wroclaw, Poland. dom.kulig@gmail.com.
authors.forename: Dominika
authors.initials: D
authors.lastname: Kulig
authors.affiliation: Department of Animal Products Technology and Quality Management, Wroclaw University of Environmental and Life Sciences, Chelmonskiego Street 37, 51-630 Wroclaw, Poland. anna.zimoch@up.wroc.pl.
authors.forename: Anna
authors.initials: A
authors.lastname: Zimoch-Korzycka
authors.affiliation: Department of Animal Products Technology and Quality Management, Wroclaw University of Environmental and Life Sciences, Chelmonskiego Street 37, 51-630 Wroclaw, Poland. zaneta.krol@wp.pl.
authors.forename: Żaneta
authors.initials: Ż
authors.lastname: Król
authors.affiliation: Department of Animal Products Technology and Quality Management, Wroclaw University of Environmental and Life Sciences, Chelmonskiego Street 37, 51-630 Wroclaw, Poland. maciej.oziemblowski@up.wroc.pl.
authors.forename: Maciej
authors.initials: M
authors.lastname: Oziembłowski
authors.affiliation: Department of Animal Products Technology and Quality Management, Wroclaw University of Environmental and Life Sciences, Chelmonskiego Street 37, 51-630 Wroclaw, Poland. andrzej.jarmoluk@up.wroc.pl.
authors.forename: Andrzej
authors.initials: A
authors.lastname: Jarmoluk
mesh_terms: D000464:Alginates / Q000737:chemistry / Q000494:pharmacology*; D000818:Animals; D000975:Antioxidants / Q000737:chemistry / Q000494:pharmacology*; D001713:Biphenyl Compounds / Q000037:antagonists & inhibitors; D048271:Chitosan / Q000737:chemistry / Q000494:pharmacology*; D015169:Colony Count, Microbial; D005516:Food Microbiology; D018857:Food Packaging / Q000379:methods*; D005519:Food Preservation / Q000379:methods; D063427:Food Quality; D020723:Glucuronic Acid / Q000737:chemistry / Q000494:pharmacology; D006603:Hexuronic Acids / Q000737:chemistry / Q000494:pharmacology; D006801:Humans; D007777:Lactobacillaceae / Q000187:drug effects / Q000254:growth & development; D008460:Meat / Q000032:analysis* / Q000382:microbiology; D008567:Membranes, Artificial; D059013:Microbial Consortia / Q000187:drug effects; D010851:Picrates / Q000037:antagonists & inhibitors; D000071228:Polyelectrolytes / Q000737:chemistry / Q000494:pharmacology*; D013552:Swine
chemical_list: D000464:Alginates; D000975:Antioxidants; D001713:Biphenyl Compounds; D006603:Hexuronic Acids; D008567:Membranes, Artificial; D010851:Picrates; D000071228:Polyelectrolytes; D020723:Glucuronic Acid; D048271:Chitosan; C004931:1,1-diphenyl-2-picrylhydrazyl
keywords: alginate; antimicrobial; antioxidant properties; chitosan; coating; meat quality; polyelectrolyte complex