Studies on shelf life of sapota (Manilkara zapota (L.) van royen) cv. cricket ball
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Date
2013
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Publisher
CCSHAU
Abstract
The experiment entitled “Studies on shelf life of sapota (Manilkara zapota (L.) Van Royen) cv.
Cricket Ball” was conducted in Post-harvest Laboratory of the Department of Horticulture, CCS
Haryana Agricultural University, Hisar during 2012-13. The fruits were collected from the orchard of
Department of Horticulture, Hisar and from the orchard of the College of Agriculture, Kaul (Kaithal).
Fruits collected from Kaul were transported to Hisar and were used for the experiment. The sapota
fruits were stored for eight days at room temperature after using two wrapping methods, i.e., individual
wrapping and lining and four different wrapping materials, viz., newspaper, cling film and polyethylene
of 0.05 and 0.1 mm thickness. The observations were recorded on various physiological and quality
parameters on 0th, 2nd, 4th, 6th and 8th day of storage. The PLW and decay loss (%) increased with the
increasing period of storage up to 8th day of storage. There was no decay loss observed on 2nd day of
storage. The PLW was more in individually wrapped fruits than in lining, while the decay loss (%) was
more in lining than in individually wrapped fruits. More PLW and decay loss (%) was observed in
transported sapota fruits than the fruits used directly for storage. Fruit firmness (kg/cm2), acidity (%),
ascorbic acid content (mg/100 g) and non-reducing sugars decreased up to 8th day of storage. Total
soluble solids (ºBrix), total sugars and reducing sugars (%) increased with the increasing period of storage
up to 6th day of storage and thereafter decreased slightly. Organoleptic rating increased up to 4th day of
storage and decreased thereafter up to 8th day of storage. It could be inferred that fruits wrapped
individually in cling film and newspaper were suitable for reducing decay loss and maintaining quality.
Description
Keywords
Individual wrapping, Lining, Physiological loss in weight (PLW), Decay loss, Quality, Cling film, Newspaper, Polyethylene of 0.05 and 0.1 mm of thickness, Storage period