The Optimization of Recipe on the Production of Natural Jam from the Peel of Dragon Fruit (Hylocereus polyrhizus)

Abstract

Background and Objective: Natural jam from the peel of dragon fruit is a product to enhance the economic value of the waste of dragon fruit’s peel. The study aimed to optimize a recipe for production a natural jam from the peel of dragon fruit. Materials and Methods: A response surface methodology with central composite design was used to investigate the effects of three independent variables; X1: The concentration of the peel of dragon fruit, X2: Processing time and X3: Sugar; on the sensory qualities of the jam such as color and texture. Results: The three independent variables had significant effects (p<0.05) for all response variables where the optimum recipe of the jam consisted of 1096,55 g of the peel of dragon fruits, 3954 min of processing time and 791.24 g of sugar, theoretically. Conclusion: The results suggest that the utilization of the peel of dragon fruit has potential as raw material for the production of a consumer’s acceptable functional food.