Oxygen scavenging and aroma affecting enzymes embedded in barrier coatings

1
Oxygen scavenging and aroma affecting enzymes
embedded in barrier coatings

• Overall objective
• Develop active packaging films, for selective
  control of oxygen transmission and odour
  formation, by dispersion coating processes.

2
Background

• Food spoilage due to oxidative processes
  producing off odours limit the shelf life of many
  foods.
• Enzymes can be used as oxygen scavangers.
• Aqueous dispersion coating can be performed at
  low temperatures with higher retention of enzyme
  activity?
• The large surface area of nano-particles (clays)
  provides an oportunity for enzyme immobilisation.
• Given the proper substrate enzymes can directly
  affect the formation and/or degradation of
  sensory active compounds.

3
Sub objectives

• Research on the design of nano-material based
  processes using stable enzymes with a triggering
  mechanism as oxygen scavengers.
• Investigate the possible use of dispersion coated
  enzymes for active control of formation and/or
  degradation of sensory active compounds.
• Demonstrate the use of lignin for production of
  added value packaging.
• Design a model with active layers on paper,
  board, and plastic packaging materials.
• Apply for an EU-funded project.

4
Possible delivrables

• Development of coated sheets or films with active
  enzymes.
• Produce a box prototype based on enzymatic oxygen
  scavengers.
• Produce a flexible packaging prototype based on
  enzymatic oxygen scavengers.
• Give evidence for prolonged shelf-life using
  enzymatic oxygen scavengers in barrier dispersion
  coatings.

5
Participants Institutes and Universities

• Karlstad University (SE)
• Swedish Institute for Food and Biotechnology (SE)
• Danish Technological Institute (DK)
• Norconserv (NO)
• Tampere University of Technology (FI)
• Matra (ISL)

6
Participants Industry

• Stora Enso Research (SE)
• Tetra Pak (SE)
• Korsnäs AB (SE)
• Novozymes A/S (DK)
• Kemira Oy (FI)
• Borealis (NO)