Effect of packaging material on shelf-life of Watermelon Jaggery
Loading...
Date
2023
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
RPCAU, Pusa
Abstract
The current research on the "Effect of Packaging Materials on the Shelf-Life of Watermelon Jaggery" was conducted to select suitable packaging materials and storage conditions for enhanced shelf life of watermelon jaggery based on physico-chemical properties, microbial count, and organoleptic attributes. This was done to assess its storability under the ambient (12-43°C) and refrigerated conditions (5±1°C) for commercial viability. Watermelon jaggery was prepared using different proportions of rind content (14.33% w/w), binding agent (9.86% w/w), and sweetening agent (12.50% w/w). Then it was stored in HDPE, LDPE, aluminum foil, glass jars, and hermetic pouches under ambient and refrigerated conditions and the quality analysis was carried out over a 160-day storage period at 20-day intervals. Quality parameters changed significantly with increase in storage period. By the end of storage under ambient condition, the moisture content decreased from 16.54% to 11.53%, pH decreased from 6.42 to 6.19, TSS increased from 74.4°Brix to 83.80°Brix, reducing sugars increased from 2.8% to 4.81%, total sugars increased from 4.5% to 6.73%, hardness increased from 36.13N to 40.67N, the colour index decreased from 42.5 to 35.47, and overall acceptability scores were declined from 8.55 to 6.81. Meanwhile, under refrigerated conditions, the moisture content decreased from 16.54% to 13.10%, pH decreased from 6.42 to 6.21, TSS increased from 74.4°Brix to 81.93°Brix, reducing sugars increased from 2.8% to 4.53%, total sugars increased from 4.5% to 6.51%, hardness increased from 36.13N to 42.63N, the colour index decreased from 42.5 to 37.57, and overall acceptability scores were declined from 8.55 to 7.10. These experimental results were subjected to statistical analysis using a completely randomized design (CRD) in GRAPES online statistical software. The total microbial count was observed at the end of storage duration, but their population were within the safe limit for consumption for the watermelon jaggery stored in refrigerated condition. From the economic analysis, it was found that B/C ratio was 1.51 and payback period is 0.32 years indicate quick recovery of initial investment. This study not only advances academic knowledge by providing valuable insights into the production, storage, and economic feasibility of this unique product but also offers entrepreneurs a compelling commercial opportunity.