Articles
Postharvest shelf-life extension of raspberries using single and dual release sulphur-dioxide emitting sheets
Article number
1451_9
Pages
69 – 74
Language
English
Abstract
Fresh fruit, like raspberries, are a good source of essential vitamins and minerals, however, they are perishable products with a short shelf-life, generating large postharvest losses.
Fruit quality is largely determined by physicochemical parameters like size, colour, firm texture, absence of decay, injuries, bruises and a balance between sweetness and acidity.
It is essential to maintain fruit quality during transport and commercialisation until the fruit is consumed.
Sulphur dioxide (SO2) is extensively used for table grapes as a postharvest treatment to lessen the level of decay throughout the storage period.
We investigate the effect of single and dual release SO2 emitting sheets on various ventilated punnets for decay control during postharvest storage.
The berries were evaluated after 3 days cold storage and again after 3- and 7-days retail shelf-life at 6 and 15°C, respectively.
After 3 days at 6°C, SO2 sheets with the different punnets significantly reduced postharvest decay compared to the untreated berries.
Treated berries were also significantly firmer.
Efficacy of SO2 sheets on postharvest decay of raspberries in these trials clearly demonstrates their potential to reduce losses during storage and transport.
Fruit quality is largely determined by physicochemical parameters like size, colour, firm texture, absence of decay, injuries, bruises and a balance between sweetness and acidity.
It is essential to maintain fruit quality during transport and commercialisation until the fruit is consumed.
Sulphur dioxide (SO2) is extensively used for table grapes as a postharvest treatment to lessen the level of decay throughout the storage period.
We investigate the effect of single and dual release SO2 emitting sheets on various ventilated punnets for decay control during postharvest storage.
The berries were evaluated after 3 days cold storage and again after 3- and 7-days retail shelf-life at 6 and 15°C, respectively.
After 3 days at 6°C, SO2 sheets with the different punnets significantly reduced postharvest decay compared to the untreated berries.
Treated berries were also significantly firmer.
Efficacy of SO2 sheets on postharvest decay of raspberries in these trials clearly demonstrates their potential to reduce losses during storage and transport.
Authors
E. Williams, S. Reens, F. Vries
Keywords
raspberries, postharvest, sulphur dioxide, ventilated punnets, control
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