Feb., 2004
The following set of bullet points lay out the science of why elevated (10%+)
CO2 levels are required in any effective MA or CA system for the transport or
storage of fresh strawberries.
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Leading post harvest research organizations such as the USDA, and the
University of California confirm that CO2 levels must be greater than 10
% to inhibit respiration and gray mold development. In the
scientific community, this is considered an accepted fact, just as it is a
"fact" we breath 21% O2.
"Decay reduction was greater when CO2 levels in pallet loads were maintained at
or above 10% during transit" . John Harvey, USDA Publication AAT-W-12July 1980.
46 scientific papers are listed on elevated CO2 effects on strawberries between
April 1989 to May 1997. Listed in: Modified Atmospheres, An Indexed Reference
List..., Supplements 6, 7. Department of Pomology, University of California,
Davis.
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There is no effective capture or accumulation of CO2 in non sealed
pallet bag products . (i.e.
Peakfresh, Lifespan, Biofresh, CO2 Technologies) This can be easily
demonstrated by measuring the CO2 levels inside a non sealed pallet bag.
"With proper selection of the bag materials and proper sealing ,
atmospheres can be kept near the 12 to 15 percent CO2 levels during transit"
Handling Strawberries for Fresh Market, University of California Publication
2442, 1996.
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TECTROL© Atmosphere is a sealed system with an
initial injection of CO2 levels above 12%.
"TECTROL© continuously adapts its technology to ever changing packaging and
handling needs. TECTROL© routinely checks atmospheres and systems at shipping
and destination to confirm effective CO2 levels." Rich Macleod, 2003
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TECTROL© Atmospheres' ability to reduce mold growth is most apparent 1 to 3
days after the bag is removed and product is in retail
distribution.
We can demonstrate this effectively when matched lots are randomized and treated
identically in true side-by-side demonstrations.
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Post harvest technologies can affect arrivals as well as retail category
profits. When considering new technology, it is highly advisable to
contact a neutral post harvest specialist such as Dr. Adel Kader (Pomology,
UC Davis): 530 752 0909.
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