RT Journal Article
SR Electronic
T1 Storage of New Seedless Grape Cultivar with Sulfur Dioxide Generators
JF American Journal of Enology and Viticulture
JO Am J Enol Vitic.
FD American Society for Enology and Viticulture
SP 230
OP 232
DO 10.5344/ajev.1992.43.3.230
VO 43
IS 3
A1 J. R. Morris
A1 O. L. Oswald
A1 G. L. Main
A1 J. N. Moore
A1 J. R. Clark
YR 1992
UL http://www.ajevonline.org/content/43/3/230.abstract
AB Two new University of Arkansas table grape cultivars, Reliance (25% Vitis vinifera L. x 75% Vitis labrusca L.) and Saturn (78% Vitis vinifera L. x 22% Vitis labrusca L.), were stored for seven and 10 weeks at 2°C in corrugated cardboard shipping containers with five packing treatments (slow, dual, and quick-release SO2 generators and lined and unlined controls). The SO2 treatments consisted of placing grapes in shipping containers lined with unvented polyethylene bags, laying commercially available SO2 generators on top of the grapes, and closing the bag. The lined control had a closed polyethylene bag surrounding the grapes but no SO2, while the unlined control had neither SO2 nor polyethylene bag. Reliance grapes had higher percentages of decay and shatter than Saturn grapes. Grapes stored with SO2 generators had less decay than the controls. The unlined control had more than four times the percentage weight loss of any other treatment. Flavor was similar among all treatments. The SO2 generators had no effect on color. Grapes that were wrapped and stored with no SO2 had the greatest amount of berry shatter. Grapes stored with the dual-release SO2 generators had less shatter than with the slow-release SO2 generators. Stem appearance was maintained by the slow-release and dual-release treatments. The use of SO2 generators had no effect on percentage soluble solids or pH.