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Lichter, A., Department of Postharvest Science, Volcani Center, Agricultural Research Organization, P.O. Box 6, Bet Dagan 50250, Israel
Zutahy, Y., Department of Postharvest Science, Volcani Center, Agricultural Research Organization, P.O. Box 6, Bet Dagan 50250, Israel
Kaplunov, T., Department of Postharvest Science, Volcani Center, Agricultural Research Organization, P.O. Box 6, Bet Dagan 50250, Israel
Lurie, S., Department of Postharvest Science, Volcani Center, Agricultural Research Organization, P.O. Box 6, Bet Dagan 50250, Israel
Two main methods are in use for packing table grapes (Vitis vinifera) for refrigerated storage and transport. One is to pack the grapes with a sulfur dioxide (SO2) generator pad inside a box with a perforated plastic liner and then to cool them. The other is to place the SO2 pad on the grapes, cool the pallet, and wrap it with low-density polyethylene film, leaving the bottom of the pallet open. These two methods were compared for their efficiency in maintaining grape quality and preventing decay for periods ranging from 33 to 117 days. The experiments included 'Redglobe' and 'Zainy' grapes packaged in plastic boxes and 'Thompson Seedless' grapes packaged in cardboard boxes. The quality of the grapes in the trials with plastic boxes was either similar in both packaging methods or better in the wrapped pallet than the liner method. The pedicels, and sometimes the rachis, showed more desiccation in the liners than in the wrapped pallets. Prevention of decay was also better with the wrapped pallets than for storage in liners. However, in the experiment with cardboard boxes, the externally wrapped boxes contained lower levels of SO2, probably because of absorption of SO2 by the cardboard, and the grapes developed more decay and rachis desiccation than in liners inside the cardboard boxes. The method of wrapping grapes after cooling them can have significant advantages over the liner method because of the faster cooling of the grapes and the use of less plastic-based, nonrecyclable materials.
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Evaluation of table grape storage in boxes with sulfur dioxide-releasing pads with either an internal plastic liner or external wrap
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Lichter, A., Department of Postharvest Science, Volcani Center, Agricultural Research Organization, P.O. Box 6, Bet Dagan 50250, Israel
Zutahy, Y., Department of Postharvest Science, Volcani Center, Agricultural Research Organization, P.O. Box 6, Bet Dagan 50250, Israel
Kaplunov, T., Department of Postharvest Science, Volcani Center, Agricultural Research Organization, P.O. Box 6, Bet Dagan 50250, Israel
Lurie, S., Department of Postharvest Science, Volcani Center, Agricultural Research Organization, P.O. Box 6, Bet Dagan 50250, Israel
Evaluation of table grape storage in boxes with sulfur dioxide-releasing pads with either an internal plastic liner or external wrap
Two main methods are in use for packing table grapes (Vitis vinifera) for refrigerated storage and transport. One is to pack the grapes with a sulfur dioxide (SO2) generator pad inside a box with a perforated plastic liner and then to cool them. The other is to place the SO2 pad on the grapes, cool the pallet, and wrap it with low-density polyethylene film, leaving the bottom of the pallet open. These two methods were compared for their efficiency in maintaining grape quality and preventing decay for periods ranging from 33 to 117 days. The experiments included 'Redglobe' and 'Zainy' grapes packaged in plastic boxes and 'Thompson Seedless' grapes packaged in cardboard boxes. The quality of the grapes in the trials with plastic boxes was either similar in both packaging methods or better in the wrapped pallet than the liner method. The pedicels, and sometimes the rachis, showed more desiccation in the liners than in the wrapped pallets. Prevention of decay was also better with the wrapped pallets than for storage in liners. However, in the experiment with cardboard boxes, the externally wrapped boxes contained lower levels of SO2, probably because of absorption of SO2 by the cardboard, and the grapes developed more decay and rachis desiccation than in liners inside the cardboard boxes. The method of wrapping grapes after cooling them can have significant advantages over the liner method because of the faster cooling of the grapes and the use of less plastic-based, nonrecyclable materials.
Scientific Publication
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