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Arrow OxyFresh Films |
EXTENDED FRESHNESS PACKAGING
Harvested fruit and vegetables are alive and therefore breath oxygen, respire and give off carbon dioxide. The rate of respiration and consequential heat of respiration varies greatly from produce to produce and varies for particular produce depending on temperature and the composition of the atmosphere around the produce
For example, respiration rate increases with increasing temperature, increasing oxygen and the presence of ethylene gas. Respiration rate decreases with increasing carbon dioxide. These changes in respiration rate occur because living produce can sense temperature and surrounding gas compositions and via its biofeedback mechanism, alter its respiration rate.
The basic concept of Arrow OxyFresh Films , extended freshness packaging, uses the ability of fresh produce to adjust its respiration rate via its biofeedback mechanism. In sense the produce does the work so as to ramp its metabolism down from high rate at packing to much lower, steady rate in storage and distribution.
Whilst the application of Arrow OxyFresh Films is simple, the underlying variables and mechanisms are complex. Rather than predict an outcome and force an atmosphere around the produce via feed forward mechanism (as with MAP, modified atmosphere packaging). Arrow OxyFresh Films allows the produce to sort itself out via its own biofeedback mechanism.
Normal PE, PP and PS packaging have permeability that are too low to allow produce to reduce its metabolism before all the oxygen surrounding the produce is consumed and the air space becomes anaerobic, leading to death of the produce, Arrow OxyFresh Films provides higher gas permeability so as to allow greater inflow of oxygen and greater outflow of carbon dioxide from the packaging surrounding the produce, thereby allowing the produce enough flexibility to modify its surrounding air so as to survive in a state of reduced metabolic activity i.e. suspended animation.
There are many factors that influence the metabolism of a particular produce and these factors vary over time in a dramatic manner. Whilst it is theoretically possible to design a particular interactive film for a particular set of permeability’s this point becomes irrelevant because of the dynamic nature of the Arrow OxyFresh Films process.
Fortunately the standard Arrow OxyFresh Films covers most produce over their normal packing, storage and distribution temperature ranges with the one formulation. Problems generally only occur when storage protocols are violated, as would happen with any other life extension packaging, particularly with increased storage which greatly increases the produce’s mechanism.
Arrow OxyFresh Films has proven itself as a world leader in extending the freshness of fruit and vegetables.
The fresh produce industry can now use road and sea transportation in the knowledge that produce is going to remain fresh as the day it was harvested.
Arrow OxyFresh Films technology works by interacting with fresh produce through a permeable honeycomb structure that is invisible to the naked eye. Natural additives combined with special high quality resins are used to create this unique structure.
The fresh produce, sensing changes in temperature and atmospheric conditions reduces or increases the surrounding oxygen and carbon dioxide gases, thus enabling it to control its own metabolic and respiration rates.
Arrow OxyFresh Films help the fresh produce to develop its own optimum and sustainable environment, resulting in a longer life, and more importantly, prolonging freshness. |
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Printed Cast Water Soluble Film :
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