High-CO2 controlled atmospheres reduce decay incidence in Thompson Seedless and Red Globe table grapes
2003
Retamales, J (Julio) | Defilippi, Bruno G. | Arias, Marcela | Castillo, Paula | Manriquez, Daniel
The efficacy of CO2-enriched atmospheres on decay control of organically-grown ‘Thompson Seedless’ and ‘Red Globe’ table grapes was evaluated during storage at 0 °C. Grapes in the treatments with controlled atmosphere (CA) were inoculated with a Botrytis cinerea culture (10 000 conidia per ml) at the beginning of the experiments. Control treatments were stored in air with or without SO2-generating metabisulphite pads and either with or without Botrytis inoculation. Fruit quality attributes including soluble solids, titratable acidity, incidence of decay, stalk and pedicel appearance were measured on removal from 0 °C and during subsequent shelf-life at 18–20 °C. CAs with CO2 at 15% or higher resulted in as good control of Botrytis as using metabisulphite pads. Stalks and pedicels were greener when metabisulphite pads were included.
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