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Revista Digital Novasinergia

versão On-line ISSN 2631-2654


PONCE-FUENTES, Fabián; PONCE-FUENTES, Elena; MUNOZ-MURILLO, Patricio  e  GARCIA-MENDOZA, Jordan. Type II yogurt with the addition of acai pulp (Euterpe oleracea Mart) sweetened with Stevia rebaudiana. Novasinergia [online]. 2023, vol.6, n.1, pp.36-49.  Epub 16-Jan-2023. ISSN 2631-2654.

: In this research, the effect of acai pulp on the physicochemical, sensory quality, and antioxidant capacity of a type II yogurt sweetened with Stevia was evaluated. A completely randomized experimental design with a factorial arrangement was proposed, the factor under study corresponded to the concentrations of 5, 10 and 15% of acai pulp. Three replicates per formulation trial were established respectively. The Tukey test was used for the physicochemical and antioxidant capacity variables, while the Kruskal Wallis test was used for the sensory profile. A significant difference was determined in the study variables and the following results were obtained: pH 3.78 - 3.79; °Brix 6.53 - 7.03%; acidity 0.90 - 1.02%; density 1,036 - 1,039 g/ml; total solids 11.93 - 12.05%; viscosity of 291.67 - 382.67 mPa.s; protein 2.43 - 2.49%; fat 1.27 - 1.57%; total phenols 635.80 - 2002.04 mg EAG/mL; antioxidant capacity 0.55 - 1.84 µmol EQ Trolox/mL; the test with the best sensory acceptance was A3 (15% acai pulp) which obtained a significant difference in the flavor and texture attribute, in addition, it presented better values in colorimetry in terms of Lightness 74.87, saturation 2.47 and tone 19.30. Except for the protein content, all the treatments presented microbiological and physicochemical quality within the requirements of the INEN 2395 standard, on the other hand, the proposed hypothesis was accepted since all the evaluated parameters varied significantly in the proposed formulations. Yogurt with acai pulp can be considered a food with potential functional compounds for the benefit of the consumer.

Palavras-chave : Antioxidant capacity; total phenols; fermented milk; sensory.

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