Elaboración de bebidas dietéticas con frutas exóticas tropicales de la provincia de Esmeraldas en el año 2012

Abstract

This research is founded in the elaboration of dietetic beverages made by exotic fruits like: star fruit (Averrhoa Carambola) and araza (Eugenia Stipitata), also it was used alternative sweetener like: Stevia (Rebaudiana Bertoni); using parameters that are inside of the NTE INEN 2 337:2008 norms. For the beverages were utilized 4 treatments with different dosages T0 (control treatment), T1 (25%), T2 (30%), and T3 (35%) of Stevia: as well as preservatives and stabilizer. All of the treatments showed brix standards (12-18° brix), pH (lower than 4.5) and acidity (0.4-0.6), these are inside the allowed range indicating by NTE INEN 2 337:2008 norm. To determinate that a beverage is dietetic, should be a reduction in some nutrient ratio of the normal beverage. Star fruit dietetic beverage showed total reduction of non-reducing sugars (sucrose), T0 whit relation to the treatments T1, T2 and T3 that were null. The amount of calories that presented cannon and araza beverage using stevia had a reduction of 40% approximately whit relation to sucrose beverage. Sensory profile dietary beverages in their odor, color, taste and texture; determined that these comply with the NTE INEN 2 337:2008 norm, and that more were approaching the T0 were star fruit dietary beverage with T1 (25%) dosing and araza dietary beverage with T1 (25%) dosing. Star fruit dietary beverage T3 (35%) and araza dietary beverage with T1 (25%) were the most acceptance by the fruit characteristics that were presented (taste and aroma).