Articles
CONTROLLED ATMOSPHERE IN BING CHERRIES FROM CHILE AND PROBLEMS CAUSED BY QUARANTINE TREATMENTS FOR EXPORT TO JAPAN
Article number
600_18
Pages
149 – 153
Language
English
Abstract
Export of Chilean cherries to the Japanese
market has been just authorized provided fruit is fumigated with methyl bromide
to eliminate potential fruit infestation with codling moth.
Research in the
2000/2001 season was carried out at INIA to find controlled atmosphere (CA)
treatments that could alleviate negative effects of the fumigation procedure.
Quality losses caused by fumigation treatment were defined.
Furthermore,
fumigated and non-fumigated Bing cherries were subjected to different
combinations of CO2/O2 in 2 separate trials using an
automated system (Kronenberger Systemtechnik, Germany). Levels of CO2
ranged from 0 to 30 kPa combined with O2 at levels between 0 and 21
kPa.
Fruit were cold stored with periodic evaluations being performed directly
after cold storage and after 2 days of shelf life at 20ºC. Fruit color,
firmness, respiration rate, incidence of disorders and decay were measured.
Fumigation with methyl bromide negatively affected fruit and stem appearance.
Despite the ample range of gas levels assayed, CA treatments were not able to
markedly influence quality aspects with the exception of decay being
significantly reduced.
However, fruit showed a remarkable tolerance towards
high CO2 and moderate low O2 levels.
market has been just authorized provided fruit is fumigated with methyl bromide
to eliminate potential fruit infestation with codling moth.
Research in the
2000/2001 season was carried out at INIA to find controlled atmosphere (CA)
treatments that could alleviate negative effects of the fumigation procedure.
Quality losses caused by fumigation treatment were defined.
Furthermore,
fumigated and non-fumigated Bing cherries were subjected to different
combinations of CO2/O2 in 2 separate trials using an
automated system (Kronenberger Systemtechnik, Germany). Levels of CO2
ranged from 0 to 30 kPa combined with O2 at levels between 0 and 21
kPa.
Fruit were cold stored with periodic evaluations being performed directly
after cold storage and after 2 days of shelf life at 20ºC. Fruit color,
firmness, respiration rate, incidence of disorders and decay were measured.
Fumigation with methyl bromide negatively affected fruit and stem appearance.
Despite the ample range of gas levels assayed, CA treatments were not able to
markedly influence quality aspects with the exception of decay being
significantly reduced.
However, fruit showed a remarkable tolerance towards
high CO2 and moderate low O2 levels.
Authors
J. Retamales, D. Manríquez, P. Castillo, B. Defilippi
Keywords
Methyl bromide, codling moth, fumigation damage, decay, quality losses.
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