www.xunlight.com Sector 1 - Materials Sector 2 - Bio Employees: 8 Swedish firm Xylophane has developed unique wrapping for food products made of natural raw materials, which is both renewable and biodegradable, unlike most "barrier packaging" which is made from aluminium- and oil-based plastics.
The material used for the envelope or packaging itself which can classified into the following categories: (a) gas-permeable packaging; (b) polymer barrier packaging, and; (c) aluminium barrier packaging is clearly important.
Aluminium barrier packaging is virtually impermeable to gases, and so only oxygen already dissolved in the UHMWPE prior to irradiation can be present.
In this chapter, the implications of mass transport properties in diverse packaging technologies, such as appertized, vacuum, modified atmosphere, or barrier packaging are discussed.
Duncan [136] reported about recent applications of antimicrobial NPs on food, to achieve high barrier packaging materials, and nano-sensors using NPs to trace food-relevant analytes such as foodborne pathogens.
Polymer barrier packaging is based on a series of multilayer plastic bags with gas-barrier properties, and therefore has a limited but measurable permeability to oxygen; it does not exclude the presence of oxygen during and after the radiation sterilization.
