Department of Horticulture, Punjab Agricutural University, Ludhiana, 141 004
Present address: *S-1 (Hort.), I- I- H. R., Bangalore.
The storage life of Beauty Seedless grapes was prolonged upto 80 days under refrigerated conditions. The vented polyethylene lined CFB cartons equipped with quarter size dual release S02 generators gave excellent results. The uncoated CFB cartons remained unaffected in storage. Fruit appearance and eating quality was fairly good. Newsprint and unvented polyeteylene lined packs had more shatter and decay. The bleaching was considerably less in vented polyethylene lined cartons, however, the weight loss was slightly more in these packs. In general, soluble solids and acidity increased during storage, packaging and S02 treatment had negligible influence on these parameters. The total residual SO., in the berries with slight bleaching near capstem was about 25 ppm. The half bleached berries had nearly 100 ppm residual sulfur dioxide.
