EFFECT OF SURFACE COATINGS AND STORAGE CONDITIONS ON SHELF LIFE AND QUALITY OF POMEGRANATE Cv. BHAGWA (Punica granatum L)
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Date
2019-06-25
Authors
Journal Title
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College of Horticulture, Rajendranagar, HYD-30
Abstract
The research entitled “Effect of surface coatings and storage conditions on shelf
life and quality of Pomegranate Cv. Bhagwa (Punica Granatum L)”was carried out
during 2018-19 at College of Horticulture, SKLTSHU, Rajendranagar.
The experiment was conducted in factorial completely randomized design with
two factors and three replications. Factor one includes nine treatments of surface
coatings , C1 – Aloe vera gel (1:2) , C2 – Aloe vera gel (1:3), C3– Chitosan 1% , C4 -
Chitosan 2%, C5 – Guar gum 1%, C6 – Guar gum 21% , C7 –Bee wax 1%, C8 – Bee
wax 2%, C9 – Control (without any surface coatings), and factor two consists of storage
conditions,S1 – Cold storage (5ºC) and S2 – Room temperature (25 ºC).
With respect to physical parameters, among the treatments, C4-Chitosan 2%
recorded lowest Physiological loss in weight (15.550 %) highest firmness of fruit (5.400),
lowest spoilage (43.232 %) followed by C3-Chitosan 1%. Highest shelf life (30.650
days) was recorded in C4-chitosan (2%) which was at par with C3-chitosan 1% (29.667
days) and lowest shelf life (17.750 days) was recorded in C9-without any treatment.
Name of the author : ZAFRAN
Title of the thesis : EFFECT OF SURFACE COATINGS AND
STORAGE CONDITIONS ON SHELF LIFE
AND QUALITY OF POMEGRANATE
Cv.BHAGWA (Punica granatum L)”
Degree to which it is
submitted
: MASTER OF SCIENCE
Faculty : HORTICULTURE
Department : FRUIT SCIENCE
Major Advisor : Dr.VEENA JOSHI
University : SRI KONDA LAXMAN TELANGANA STATE
HORTICULTURAL UNIVERSITY
Year : 2019
With respect to quality parameters, C4-Chitosan 2% recorded highest Total soluble
solids (11.743 oB), lowest acidity (0.380 %) followed by C5- Guar gum 1% (11.552 oB ),
(0.393 %) respectively. C4-Chitosan 2% recorded highest brix acid ratio (39.627)
followed by C5- Guar gum 1% (34.440), while lowest brix acid ratio was recorded in C9-
Control (21.248).
C4-Chitosan 2% recorded highest reducing sugars, total sugars, ascorbic acid content
(3.947 %) (4.250 %) (7.897 mg/100 g) respectively and followed by C3-Chitosan 1%
(3.475 %) (4.037 %) (7.888 mg/100 g) and lowest was recorded in C9- Control.
There was a significant difference between two storage conditions in all organoleptic
characters with highest score for colour & appearance, texture, taste, flavor and overall
acceptability respectively in cold storage and lowest score in room temperature.
From this study it could be concluded that surface coatings and storage conditions
influenced the shelf life and quality of Pomegranate. Among the treatments Chitosan 2%
cold storage is best followed by Chitosan 1%. Among both storage conditions fruits
stored in cold storage (5ºC) gave better results in terms of shelf life and quality. With
respect to the interaction effect of surface coatings and storage conditions, Chitosan 2%
+ cold storage (5 ºC) was superior of all the treatments in terms of shelf life ( 41.533
days) and quality parameters followed by Chitosan 1% + cold storage over control fruits
stored at room temperature (18.337 days
Description
The research entitled “Effect of surface coatings and storage conditions on shelf
life and quality of Pomegranate Cv. Bhagwa (Punica Granatum L)”was carried out
during 2018-19 at College of Horticulture, SKLTSHU, Rajendranagar.
The experiment was conducted in factorial completely randomized design with
two factors and three replications. Factor one includes nine treatments of surface
coatings , C1 – Aloe vera gel (1:2) , C2 – Aloe vera gel (1:3), C3– Chitosan 1% , C4 -
Chitosan 2%, C5 – Guar gum 1%, C6 – Guar gum 21% , C7 –Bee wax 1%, C8 – Bee
wax 2%, C9 – Control (without any surface coatings), and factor two consists of storage
conditions,S1 – Cold storage (5ºC) and S2 – Room temperature (25 ºC).
With respect to physical parameters, among the treatments, C4-Chitosan 2%
recorded lowest Physiological loss in weight (15.550 %) highest firmness of fruit (5.400),
lowest spoilage (43.232 %) followed by C3-Chitosan 1%. Highest shelf life (30.650
days) was recorded in C4-chitosan (2%) which was at par with C3-chitosan 1% (29.667
days) and lowest shelf life (17.750 days) was recorded in C9-without any treatment.
Name of the author : ZAFRAN
Title of the thesis : EFFECT OF SURFACE COATINGS AND
STORAGE CONDITIONS ON SHELF LIFE
AND QUALITY OF POMEGRANATE
Cv.BHAGWA (Punica granatum L)”
Degree to which it is
submitted
: MASTER OF SCIENCE
Faculty : HORTICULTURE
Department : FRUIT SCIENCE
Major Advisor : Dr.VEENA JOSHI
University : SRI KONDA LAXMAN TELANGANA STATE
HORTICULTURAL UNIVERSITY
Year : 2019
With respect to quality parameters, C4-Chitosan 2% recorded highest Total soluble
solids (11.743 oB), lowest acidity (0.380 %) followed by C5- Guar gum 1% (11.552 oB ),
(0.393 %) respectively. C4-Chitosan 2% recorded highest brix acid ratio (39.627)
followed by C5- Guar gum 1% (34.440), while lowest brix acid ratio was recorded in C9-
Control (21.248).
C4-Chitosan 2% recorded highest reducing sugars, total sugars, ascorbic acid content
(3.947 %) (4.250 %) (7.897 mg/100 g) respectively and followed by C3-Chitosan 1%
(3.475 %) (4.037 %) (7.888 mg/100 g) and lowest was recorded in C9- Control.
There was a significant difference between two storage conditions in all organoleptic
characters with highest score for colour & appearance, texture, taste, flavor and overall
acceptability respectively in cold storage and lowest score in room temperature.
From this study it could be concluded that surface coatings and storage conditions
influenced the shelf life and quality of Pomegranate. Among the treatments Chitosan 2%
cold storage is best followed by Chitosan 1%. Among both storage conditions fruits
stored in cold storage (5ºC) gave better results in terms of shelf life and quality. With
respect to the interaction effect of surface coatings and storage conditions, Chitosan 2%
+ cold storage (5 ºC) was superior of all the treatments in terms of shelf life ( 41.533
days) and quality parameters followed by Chitosan 1% + cold storage over control fruits
stored at room temperature (18.337 days
Keywords
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Citation
Sri Konda Laxman Telangana State Horticultural University, Rajendranagar, Hyderabad-30