title: Development of antimicrobial active packaging materials based on gluten proteins.
abstract: BACKGROUND
  The incorporation of natural biocide agents into protein-based bioplastics, a source of biodegradable polymeric materials, manufactured by a thermo-mechanical method is a way to contribute to a sustainable food packaging industry. This study assesses the antimicrobial activity of 10 different biocides incorporated into wheat gluten-based bioplastics. The effect that formulation, processing, and further thermal treatments exert on the thermo-mechanical properties, water absorption characteristics and rheological behaviour of these materials is also studied.
  
  
  RESULTS
  Bioplastics containing six of the 10 examined bioactive agents have demonstrated suitable antimicrobial activity at 37 °C after their incorporation into the bioplastic. Moreover, the essential oils are able to create an antimicrobial atmosphere within a Petri dish.
  
  
  CONCLUSIONS
  Depending on the selected biocide, its addition may alter the bioplastics protein network in a different extent, which leads to materials exhibiting less water uptake and different rheological and thermo-mechanical behaviours. © 2015 Society of Chemical Industry.
authors.affiliation: Departamento de Ingeniería Química, Centro de Investigación en Tecnología de Productos y Procesos Químicos (Pro2TecS) - Campus de Excelencia Internacional Agroalimentario, CeiA3, Universidad de Huelva, Campus el Carmen, 21071, Huelva, Spain.
authors.forename: Diana
authors.initials: D
authors.lastname: Gómez-Heincke
authors.affiliation: Departamento de Ingeniería Química, Centro de Investigación en Tecnología de Productos y Procesos Químicos (Pro2TecS) - Campus de Excelencia Internacional Agroalimentario, CeiA3, Universidad de Huelva, Campus el Carmen, 21071, Huelva, Spain.
authors.forename: Inmaculada
authors.initials: I
authors.lastname: Martínez
authors.affiliation: Departamento de Ingeniería Química, Centro de Investigación en Tecnología de Productos y Procesos Químicos (Pro2TecS) - Campus de Excelencia Internacional Agroalimentario, CeiA3, Universidad de Huelva, Campus el Carmen, 21071, Huelva, Spain.
authors.forename: Pedro
authors.initials: P
authors.lastname: Partal
authors.affiliation: Departamento de Ingeniería Química, Universidad de Sevilla, Facultad de Química, Calle Profesor García González 1, 41012, Sevilla, Spain.
authors.forename: Antonio
authors.initials: A
authors.lastname: Guerrero
authors.affiliation: Departamento de Ingeniería Química, Centro de Investigación en Tecnología de Productos y Procesos Químicos (Pro2TecS) - Campus de Excelencia Internacional Agroalimentario, CeiA3, Universidad de Huelva, Campus el Carmen, 21071, Huelva, Spain.
authors.forename: Críspulo
authors.initials: C
authors.lastname: Gallegos
mesh_terms: D000890:Anti-Infective Agents; D063566:Biodegradable Plastics / Q000737:chemistry; D055598:Chemical Phenomena; D004548:Elasticity; D018857:Food Packaging / Q000295:instrumentation* / Q000379:methods; D005983:Glutens; D006358:Hot Temperature; D009822:Oils, Volatile; D011108:Polymers; D012212:Rheology; D014783:Viscosity; D014867:Water / Q000737:chemistry
chemical_list: D000890:Anti-Infective Agents; D063566:Biodegradable Plastics; D009822:Oils, Volatile; D011108:Polymers; D014867:Water; D005983:Glutens
keywords: antimicrobial agents; bioplastic; processing; protein; water absorption visco-elasticity