STUDIES ON THE EFFECT OF POST HARVEST TREATMENTS, MODIFIED AND ACTIVE PACKAGING METHODS ON SHELF LIFE AND QUALITY OF BANANA CV. GRAND NAINE
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Date
2015-07-13
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COLLEGE OF HORTICULTURE, RAJENDRANAGAR, HYDERABAD - 500 030 Dr. Y.S.R. HORTICULTURAL UNIVERSITY
Abstract
The research work entitled “STUDIES ON THE EFFECT OF POST HARVEST TREATMENTS, MODIFIED AND ACTIVE PACKING METHODS ON SHELF LIFE AND QUALITY OF BANANA CV. GRAND NAINE.” was conducted at Post Harvest Laboratory, College of Horticulture, Dr. Y.S.R Horticultural University, Rajendranagar, Hyderabad during the year 2014-2015. The objectives of the experiment were to study the effect of post harvest treatments on shelf life and quality of banana cv. Grand Naine and other objective is to study the effect of modified and active packaging on shelf life and quality of banana cv. Grand Naine.
First experiment was carried out with ten treatments and second experiment with nine treatments in Completely Randomized Design and replicated thrice. Various physical parameters like PLW (%), fruit firmness (kg/cm2), pulp to peel ratio, colour development, spoilage , shelf-life (days) and physico-chemical parameters like TSS (oB), acidity (%), brix acid ratio and sugars (reducing, total and non reducing) (%), were estimated at 3 days interval.
With respect to the first experiment, banana fruits dipped in Gibberellic acid at 150 ppm retained good colour and recorded significantly lowest PLW (10.01 %), pulp to peel ratio (2.28), spoilage ( 26.17 %), TSS (19.91 oB), brix acid ratio (36.88) and sugars (reducing, total and non reducing) (7.72, 16.50 and 8.78 %) and significantly highest fruit firmness (2.52 kg/cm2)), acidity (0.54 %), shelf life up to
20.23 days. The fruits kept under control recorded the shelf life up to 9 days only.
From the second experiment, it was recorded that fruits packed in low density poly ethylene (LDPE) + ethylene scrubber (KMoN4) retained good colour, recorded significantly minimum PLW (1.11 %), pulp to peel ratio (2.45), spoilage (23.00 %), TSS (17.03 oB), brix-acid ratio (34.06) and sugars (reducing, total and non reducing) (10.20, 15.52 and 5.32 %) and at the same time it has showed significantly highest fruit firmness (2.55 kg/cm2), acidity (0.50 %), and shelf life up to 26.05 days respectively.
Description
The objectives of the experiment were to study the effect of post harvest treatments on shelf life and quality of banana cv. Grand Naine and other objective is to study the effect of modified and active packaging on shelf life and quality of banana cv. Grand Naine.
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Citation
Post Harvest Laboratory, College of Horticulture, Dr. Y.S.R Horticultural University, Rajendranagar, Hyderabad