title: Pectin functionalized with natural fatty acids as antimicrobial agent.
abstract: Several pectin derivatives were prepared by chemical modifications of the polysaccharide with natural fatty acids. The obtained biodegradable pectin-based materials, pectin-linoleate, pectin-oleate and pectin-palmitate, were investigated for their antimicrobial activity against several bacterial strains, Staphylococcus aureus and Escherichia coli. Good results were obtained for pectin-oleate and pectin-linoleate, which inhibit the growth of the selected microorganisms by 50-70%. They exert the better antimicrobial activity against S. aureus. Subsequently, the pectin-oleate and the pectin-linoleate samples were coated on polyethylene films and were assessed for their capacity to capture the oxygen molecules, reducing its penetration into the polymeric support. These results confirmed a possible application of the new materials in the field of active food packaging.
authors.affiliation: Institute of Biostructures and Bioimaging, National Research Council, 80134 Naples, Italy.
authors.forename: Enrica
authors.initials: E
authors.lastname: Calce
authors.affiliation: Department of Experimental Medicine, II University of Naples, Via De Crecchio 7, 80138 Naples, Italy.
authors.forename: Eleonora
authors.initials: E
authors.lastname: Mignogna
authors.affiliation: Department of Industrial Engineering, University of Salerno, 84084 Fisciano, SA, Italy.
authors.forename: Valeria
authors.initials: V
authors.lastname: Bugatti
authors.affiliation: Department of Experimental Medicine, II University of Naples, Via De Crecchio 7, 80138 Naples, Italy.
authors.forename: Massimiliano
authors.initials: M
authors.lastname: Galdiero
authors.affiliation: Department of Industrial Engineering, University of Salerno, 84084 Fisciano, SA, Italy.
authors.forename: Vittoria
authors.initials: V
authors.lastname: Vittoria
authors.affiliation: Institute of Biostructures and Bioimaging, National Research Council, 80134 Naples, Italy. Electronic address: stefania.deluca@cnr.it.
authors.forename: Stefania
authors.initials: S
authors.lastname: De Luca
mesh_terms: D000818:Animals; D000890:Anti-Infective Agents / Q000494:pharmacology*; D002522:Chlorocebus aethiops; D004926:Escherichia coli / Q000187:drug effects / Q000254:growth & development; D005227:Fatty Acids / Q000737:chemistry / Q000378:metabolism*; D008826:Microbial Sensitivity Tests; D008970:Molecular Weight; D010368:Pectins / Q000737:chemistry / Q000378:metabolism*; D020959:Polyethylene / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013211:Staphylococcus aureus / Q000187:drug effects / Q000254:growth & development; D013696:Temperature; D013997:Time Factors; D014709:Vero Cells
chemical_list: D000890:Anti-Infective Agents; D005227:Fatty Acids; D010368:Pectins; D020959:Polyethylene
keywords: Active packaging systems; Antimicrobial activity; Chemical modification; Fatty acid ester of pectin; Oxygen scavenging function