Prebiotic Beverage from Smallanthus Sonchifolius Sweetened with Stevia
Keywords:
prebiotic beverage; yacon; stevia; fructo-oligosaccharides; sensory analyses
Abstract
The objective of this study was to develop a prebiotic beverage from yacon and pineapple sweetened with stevia. Nine functional beverage formulations were prepared. The yacon and the pineapple were incorporated in three proportions, P1: 30-70, P2: 50-50 and P3: 70-30, respectively. The selection of the optimal treatment was made by sensory analysis. The physicochemical analyzes of the optimal formulation evaluated were pH, acidity, total soluble solids, instrumental color and % Fructo oligosaccharides (FOS) (1-Kestose and Nystose). For the interpretation of results, a randomized design with a 3 x 3 factorial arrangement was used. Beverages P1 and P2, obtained the highest score on a scale of 9 points (pgt; 0,05); however, the latter had a higher percentage of FOS (0,19%). The beverage presented the following physicochemical characteristics, pH: 3,58 #xB1; 0,03, Total soluble solids: 5 #xB1; 0,01 #xB0; Brix, Acidity: 0,36 #xB1; 0,01%, Density: 1,02 #xB1; 0,01g / ml, Viscosity: 13,55 #xB1; 0,15 cP, Color Index: -14,03 #xB1; 1,65 and FOS (1-Kestose: 0,06% and Nystose: 0,13%).
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2020-01-15
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