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Evaluation of Fumigation with Ozone Gas to Control Postharvest Decay in Table Grapes

Investigators
Smilanick, Joseph
Institutions
USDA - Agricultural Research Service
Start date
2009
End date
2010
Objective
Evaluate benefits and risks of using ozone to control postharvest decay of table grapes.
More information
APPROACH: Fumigate with ozone under laboratory and commercial conditions to establish effective rates. Postharvest quality is an important aspect of table grapes marketing, but the influence of ozone gas during storage remains unclear. Ozone, a well- known biocide gas, reduced postharvest decay by approximately 50% when applied in very high concentrations for one hour before cold storage. The use of constant low concentrations of ozone gas will be determined using equipment that will precisely control its concentration during the storage of packaged grapes. The influence of the gas on the severity of postharvest decay losses and its ability to penetrate commercial packaging will be determined. Cooperator activity has been monitored by the use of technical meetings, visits to the laboratory, and telephone conversations.
Funding Source
Agricultural Research Service
Project number
5302-43000-035-06T
Accession number
416992
Categories
Chemical Contaminants
Pesticide Residues
Commodities
Produce