VALUE ADDITION TO WATERMELON RIND THROUGH JAM PREPARATION

Abstract

An experiment was conducted at Postharvest Laboratory, Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka during February 2018 to December 2018 to add value to Watermelon rind and to study quality of watermelon rind jam as influenced by different concentration of rinds and sugar with flavors. This single factors experiment was consisted of sixteen treatments with three replications and laid out in CRD. The treatments were T 1 F 0 =50% rind+50% sugar+no flavor; T 1 ii

F 1 =50% rind+50% sugar+strawberry flavor; T 1 F 2 =50% rind+50% sugar+pineapple flavor; T 1 =50% rind+50% sugar+vanila flavor; T 2 F 0 =80% rind+20% sugar+no flavor; T 2 =80% rind+20% sugar+strawberry flavor; T 2 F 2 =80% rind+20% sugar+pineapple flavor; T 2 F 3 =80% rind+20% sugar+vanila flavor; T 3 F 0 =60% rind+40% sugar+no flavor; T 3 F 1 =60% rind+40% sugar+strawberry flavor; T 3 F 2 =60% rind+40% sugar+pineapple flavor; T 3 F 3 =60% rind+40% sugar+vanila flavor; T 4 F 0 =40% rind+60% sugar+no flavor; T 4 F 1 =40% rind+60% sugar+strawberry flavor; T 4 F 2 =40% rind+60% sugar+pineapple flavor; T 4 F 3 =40% rind+60% sugar+vanila flavor. At first qualitative test was done for prepared jam. Then organolaptic test was done and last of all various chemical changes were determined with the storage period. T 1 F 1 was statistically best. The chemical analysis of T 1 F 1 jam was pH (3.80), TSS (6.00 %,), TA (2.48%), vitamin C (0.26mg/100g). This suggested that 50% rind+50% sugar and strawberry flavor was the promising formulation for the preparation of good quality of watermelon rind jam.