title: Development of PLA films containing oregano essential oil (Origanum vulgare L. virens) intended for use in food packaging.
abstract: Consumers' concerns about the environment and health have led to the development of new food packaging materials avoiding petroleum-based matrices and synthetic additives. The present study has developed polylactic acid (PLA) films containing different concentrations of essential oil from Origanum vulgare L. virens (OEO). The effectiveness of this new active packaging was checked for use in ready-to-eat salads. A plasticising effect was observed when OEO was incorporated in PLA films. The rest of the mechanical and physical properties of developed films did not show much change when OEO was included in the film. An antioxidant effect was recorded only for films containing the highest percentages of the active agent (5% and 10%). In addition, films exhibited in vitro antibacterial activity against Staphylococcus aureus, Yersinia enterocolitica, Listeria monocytogenes, Enterococcus faecalis and Staphylococcus carnosus. Moreover, in ready-to-eat salads, antimicrobial activity was only observed against yeast and moulds, where 5% and 10% of OEO was the most effective.
authors.affiliation: a Area of Toxicology, Faculty of Pharmacy , Universidad de Sevilla , Seville , Spain.
authors.forename: M
authors.initials: M
authors.lastname: Llana-Ruiz-Cabello
authors.affiliation: a Area of Toxicology, Faculty of Pharmacy , Universidad de Sevilla , Seville , Spain.
authors.forename: S
authors.initials: S
authors.lastname: Pichardo
authors.affiliation: b Area of Packaging Materials and Systems , ITENE , Paterna , Valencia , Spain.
authors.forename: J M
authors.initials: JM
authors.lastname: Bermúdez
authors.affiliation: c DOMCA S.A ., Alhendín , Granada , Spain.
authors.forename: A
authors.initials: A
authors.lastname: Baños
authors.affiliation: c DOMCA S.A ., Alhendín , Granada , Spain.
authors.forename: C
authors.initials: C
authors.lastname: Núñez
authors.affiliation: c DOMCA S.A ., Alhendín , Granada , Spain.
authors.forename: E
authors.initials: E
authors.lastname: Guillamón
authors.affiliation: b Area of Packaging Materials and Systems , ITENE , Paterna , Valencia , Spain.
authors.forename: S
authors.initials: S
authors.lastname: Aucejo
authors.affiliation: a Area of Toxicology, Faculty of Pharmacy , Universidad de Sevilla , Seville , Spain.
authors.forename: A M
authors.initials: AM
authors.lastname: Cameán
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology*; D000975:Antioxidants / Q000737:chemistry / Q000494:pharmacology*; D013293:Enterococcus faecalis / Q000187:drug effects; D018857:Food Packaging; D008089:Listeria monocytogenes / Q000187:drug effects; D008826:Microbial Sensitivity Tests; D009822:Oils, Volatile / Q000737:chemistry* / Q000494:pharmacology*; D031341:Origanum / Q000737:chemistry*; D011091:Polyesters / Q000737:chemistry* / Q000494:pharmacology; D013210:Staphylococcus / Q000187:drug effects; D015008:Yersinia enterocolitica / Q000187:drug effects
chemical_list: D000900:Anti-Bacterial Agents; D000975:Antioxidants; D009822:Oils, Volatile; D011091:Polyesters; C033616:poly(lactide)
keywords: Polylactic acid; active packaging; antimicrobial; antioxidant; oregano essential oil