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EFFECT OF POST HARVEST TREATMENTS AND PACKAGING MATERIALS ON SHELF LIFE AND QUALITY OF TOMATO (Solanum lycopersicum L.) cv. LAKSHMI UNDER AMBIENT CONDITIONS

KrishiKosh

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Title EFFECT OF POST HARVEST TREATMENTS AND PACKAGING MATERIALS ON SHELF LIFE AND QUALITY OF TOMATO (Solanum lycopersicum L.) cv. LAKSHMI UNDER AMBIENT CONDITIONS
 
Creator SRI VIDYA SATHUPATY
 
Contributor Dr.P. SYAM SUNDER REDDY
 
Subject post harvest treatments ,physio-chemical parameters ,ambient temperatures
 
Description The present investigation entitled, “‘Effect of post harvest treatments and packaging materials on shelf life and quality of tomato (Solanum lycopersicum L.) cv. Lakshmi under ambient conditions’” was carried out during 2011-2012 at Dr.Y.S.R. Horticultural University, Venkataramannagudem, West Godavari district, Andhra Pradesh.
The present study was conducted to know the effect of different post harvest chemicals and packaging materials on physio-chemical parameters and shelf life of tomato fruit at ambient temperatures.In the experiment-1 there are 9 treatments they are T1- Benzyl Adenine (50 ppm),T2- Benzyl Adenine (100 ppm),T3- Sodium benzoate (1000 ppm),T4- Sodium benzoate (2000 ppm),T5- Calcium chloride (1.0%),T6- Calcium chloride (2.0%) ,T7- Gibberellic acid (0.1%) ,T8- Gibberellic acid (0.3%) ,T9- Control (distilled water) and in experiment-2 different packaging materials used in combination with best post harvest chemical of experiment-1. In the experiment-2 there are 7 treatments they are P1- LDPE 80 guage (0.25%ventilation), P2-LDPE 150 guage (0.25% ventilation), P3-LDPE 300 guage (0.25%ventilation), P4-LDPE 80 guage (0.5% ventilation) , P5-LDPE 150 guage (0.5% ventilation), P6–LDPE 300 guage (0.5% ventilation), P7-Control (without packaging).
A set of two experiments were conducted in CRD with factorial concept and the treatments were replicated three times and physio-chemical characteristics were recorded at 4 days interval upto 28 days in experiment-1 and 20 days in experiment-2 at ambient conditions.
The physio-chemical characters studied are physiological loss in weight, fruit firmness, shelf life, total soluble solids, ascorbic acid, titrable acidity, reducing sugars, total sugars and lycopene content, it was observed that the physiological loss of weight and lycopene content increased towards the end of storage period. Fruit firmness, shelf life, ascorbic acid and titrable acidity decreased towards the end of storage period. Total soluble solids, reducing sugars and total sugars were increased initially and then decreased towards the end of storage period.
In experiment-1, tomato fruits treated with GA3 (0.3%) recorded lower physiological loss of weight (7.90%), fruit firmness (3.25), total soluble solids (5.43), ascorbic acid(25.82), titrable acidity (0.46), reducing sugars (5.35), total sugars (9.30) and lycopene content (9.30) and there by recorded more shelf life (43 days) than rest of the treatments. Next to T8, CaCl2 2% (T6) also recorded higher shelf life upto 40 days.
In experiment-2, tomato fruits treated with GA3 (0.3%) and packed in LDPE 300 guage (0.5% ventilation) recorded lower physiological loss of weight (9.30%) fruit firmness (3.29), total soluble solids (5.41), ascorbic acid (0.46), titrable acidity (0.46%), reducing sugars (5.30), total sugars (9.30) and lycopene content (3.11) and there by recorded more shelf life (30 days) than rest of the treatments. Next to T6, LDPE 150 guage (0.5% ventilation) (T5) also recorded higher shelf life upto 30 days.
 
Date 2016-07-23T13:00:47Z
2016-07-23T13:00:47Z
2012-06
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/69566
 
Language en
 
Format application/pdf
 
Publisher Dr.Y.S.R. HORTICULTURAL UNIVERSITY