Periódicos
URI permanente desta comunidadehttps://thoth.dti.ufv.br/handle/123456789/3352
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Item Evaluation of probiotic microencapsulation in a prebiotic mixture with coffee extract(Editora UFLA, 2019-07) Zapata, Angela María Ormaza; Arango, Félix Octavio Díaz; Rodríguez-Barona, SneyderThe objective in the present study was to evaluate coffee extract as an encapsulant material, when mixed with prebiotic carbohydrates, in order to obtain a coffee-based, non-dairy probiotic beverage. Six coffee extract formulations were evaluated with maltodextrin and inulin, in various proportions, for the obtaining of microcapsules with the probiotic strain L. casei ATCC 393, by way of spray drying. The best formulations encountered were MD-INU:EXT (50:50) and EXT:Water (50:50), which were spray dried, for increased viability, elevated wettability and solubility, low hygroscopicity, and adequate morphology for this type of powdered product. The formulation was composed of maltodextrin, inulin, and coffee extract, and MD-INU:EXT (50:50) presented the best physicochemical and viability characteristics. The potential of coffee extract was proven as a wall material in microencapsulated, non-dairy, highly acidic, probiotic products. Optimal viability was achieved, in the order of 1x106 CFU/mL, for both selected formulations, which maintained functional potential for up to 11 weeks of storage.Item Development and description of light functional dulce de leche with coffee(Editora UFLA, 2012-03) Guimarães, Ívina Catarina de Oliveira; Leão, Maria Helena Miguez da Rocha; Pimenta, Carlos José; Ferreira, Larissa de Oliveira; Ferreira, Eric BatistaThis study deals with development of a “dulce de leche” (DL) with coffee, with low caloric content and functional properties. Through rotational central composite design, eleven DLs were formulated with different polydextrose and sucralose levels. The results were analyzed by means of response surface and ANOVA. The addition of polydextrose led to the increase in moisture and water activity and reduction in the ash and soluble solids contents. In the formulations with greater levels of sucralose and polydextrose, there was an increase in the ash, acid and fiber content. Greater yield was achieved with greater concentrations of polydextrose and less substitution of sucrose by sucralose, allowing development of a new functional product with low caloric content.