Effect of pre-harvest application of antioxidants on storage life and quality of plum (Prunus salicina Lindl.) cv. Satluj Purple
Loading...
Date
2019
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Punjab Agricultural University, Ludhiana
Abstract
The aim of present investigation entitled “Effect of pre-harvest application of antioxidants on
storage life and quality of plum (Prunus salicina Lindl.) cv. Satluj Purple” was to extend the
post-harvest life and maintenance of quality of plum fruits under cold storage conditions. The
research was conducted in Department of Fruit Science, Punjab Agricultural University,
Ludhiana. The healthy plum trees were sprayed with sodium nitroprusside (SNP) @ 50, 100
and 150 μmolL-1 and salicylic acid (SA) @ 1, 2 and 3 mmolL-1 before 7 and 14 days of
harvest. The fruits were harvested at colour break stage, packed in corrugated fibre board
(CFB) boxes and stored at low temperature (0-1ºC and 90-95% RH).The various physicochemical
observations were recorded after 7, 14, 21, 28 and 35 days of storage. The results
revealed that the fruits treated with 100 μmolL-1 sodium nitroprusside (SNP) and 150 μmolL-1
sodium nitroprusside (SNP) 14 days before harvest effectively prolonged the storage life of
fruits by minimizing the physiological loss in weight, spoilage, the actitvities of fruit
softening enzymes (pectin methyl esterase and cellulase) and maintaining higher firmness,
sensory quality, all sugars (total sugars, reducing sugars and non-reducing sugars), titratable
acidity, total soluble solids (TSS), total antioxidant activity, total phenols and flavonols
content under low temperature storage conditions.
Description
Keywords
null