POST HARVEST MANAGEMENT OF ROSE APPLE (Syzyzium jambos Alston) FRUIT
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Date
2014-08-12
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University of Agricultural Sciences, Bengaluru
Abstract
Rose apple (Syzyzium jambos Alston) is one of the valuable minor fruits due to its nutritional and economic importance. The marketability of the fruit is poor due to faster aging, and spoilage after harvesting. For storage studies, matured (ripened) and unripened (two days prior to maturity) rose apple fruits were selected. The physical, engineering and biochemical properties of the fruits were determined and analysed. The present study was focused on standardizing storage temperatures (Refrigerated storage at 20C and ambient temperature 280C) and packaging materials (polyethylene and polypropylene each of 300 gauge with 0 and 0.1 per cent ventilation) with a view to extend the shelf life of rose apple. With regards to sensory evaluation and quality
analysis, polypropylene with 0% ventilation treatment was found to be performing best for the matured and un-ripened rose apple fruits for a storage period 20 days at 20C. Also, fruits stored in diffusion channel systems (diffusion channel: 3mm diameter and 5cm length, 5mm diameter and 7.5cm length, 7mm diameter and 10cm length) at different temperatures indicated that the diffusion channel system of 5mm dia. and 7.5cm length was found to store fruits without microbial infestation (visual observation) for 3 days at ambient temperature and 13 days at 2oC temperature. The cost: benefit ratio for storage and packaging of rose apple fruits was worked to be 1.00 : 1.67.
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