Knowledge value chain model and new product development: An alternative to undernutrtion
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The objective of this study was to assess the acceptability of newly developed functional-fortified powdered drinks based on the probabilistic sensory analysis of their sweetness, mouthfeel, color, and aroma; adapt a modified Knowledge Value Chain model to the process of research and development of the product development process, and determine the shelf life of the products. Knowledge Value Chain model was used as a systematic approach to gather, analyze, formulate, and execute data. Four prototype formulas for chocolate, vanilla, natural, and strawberry flavors of the newly developed products were evaluated for overall acceptability by a total of 150 panelists from Honduras, Nicaragua and Dominican Republic. Probabilistic analysis of sensory evaluation was used to assess the degree of acceptability. The instrument used for data collection was a scorecard with a Just-About-Right (JAR) and hedonic scale. The Just About Right and hedonic scales information was combined in the scorecard in this study to provide directional information for product optimization or reformulation. Factorial ANCOVA was used for the analysis of the effects of sweetness, mouthfeel, color, and aroma attributes on consumers‟ acceptability for the functional-fortified drinks. The panelists found these prototype formulas to have little to no-acceptability based on sweetness, mouthfeel, color, and aroma. The reformulation process had, as a goal, to correct deficiencies of the prototype flavors in terms of sensorial attributes and met the expected standards in termsof sweetness, mouthfeel, color and aroma of the target population for the different products. As expected, reformulated products were highly accepted with the exception of the strawberry flavor. The accelerated shelf life test result showed an expected shelf life of twenty-eight months under dry conditions with temperatures no higher than 27 degrees C. In conclusion through the use of a systematic process, data were gathered, interpreted, and decisions were made ending in an increased acceptability of the functional-fortified products.