Articles
APPLICATION OF ETHYLENE ADSORBERS IN COMBINATION WITH HIGH OXYGEN ATMOSPHERES FOR THE STORAGE OF STRAWBERRIES AND RASPBERRIES
Article number
600_43
Pages
311 – 318
Language
English
Abstract
Different
possibilities (combination of gas composition and packaging film) of
consumer-size modified atmosphere packages for highly perishable strawberries
and raspberries, stored at 7°C, were evaluated.
All proposed closed packaging
systems resulted in a prolonged shelf life compared to the nowadays applied
macro-perforated packaging films.
A selective permeable film was selected based
on the required oxygen and ethylene permeability in order to obtain 3-5% O2,
5-10% CO2 and a limited ethylene accumulation.
High Oxygen
Atmosphere (HOA) (95% O2 5% N2) in combination with a
high barrier film for strawberries and a semi-barrier film for raspberries
resulted in too high CO2-levels resulting in poorer evaluation of
the organoleptical properties (fermentation and softening) but an inhibition of
mould development was noticed.
The combination of a HOA in a selective
permeable type of packaging film was evaluated as an optimal packaging system
based on the checked quality assessment parameters: moisture loss, loss of
marketable fruit based on visual defects and mould development, sensorial and
microbiological quality.
For raspberries, the addition of an ethylene adsorbing
film in the system is favourable to prevent a too high accumulation of
ethylene.
possibilities (combination of gas composition and packaging film) of
consumer-size modified atmosphere packages for highly perishable strawberries
and raspberries, stored at 7°C, were evaluated.
All proposed closed packaging
systems resulted in a prolonged shelf life compared to the nowadays applied
macro-perforated packaging films.
A selective permeable film was selected based
on the required oxygen and ethylene permeability in order to obtain 3-5% O2,
5-10% CO2 and a limited ethylene accumulation.
High Oxygen
Atmosphere (HOA) (95% O2 5% N2) in combination with a
high barrier film for strawberries and a semi-barrier film for raspberries
resulted in too high CO2-levels resulting in poorer evaluation of
the organoleptical properties (fermentation and softening) but an inhibition of
mould development was noticed.
The combination of a HOA in a selective
permeable type of packaging film was evaluated as an optimal packaging system
based on the checked quality assessment parameters: moisture loss, loss of
marketable fruit based on visual defects and mould development, sensorial and
microbiological quality.
For raspberries, the addition of an ethylene adsorbing
film in the system is favourable to prevent a too high accumulation of
ethylene.
Authors
L. Jacxsens, F. Devliegherre, C. Van Der Steen, I. Siro, J. Debevere
Keywords
strawberry, raspberry, ethylene adsorber, consumer package, safety
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