2025-03-252025-03-252019-10-25POLIZELI, Amanda Gentil; CRUZ, Larissa Fernandes da. Elaboração de bebida fermentada de açaí (Euterpe oleracea Mart.) com diferentes grãos de Kefir, bioativos e atividade antioxidante por ABTS. 64 f. Trabalho de Conclusão de Curso (Tecnologia de Alimentos) - Universidade do Estado do Pará, Belém, 2019.https://bibliotecadigitaldetcc.uepa.br/handle/riuepa/561Kefir grains are described as a symbiotic association of yeasts, lactic acid bacteria and acetic acid bacteria that when fermented in substrate, ferment, getting a fermented drink. Considering your nutritional properties combined with the natural properties of the acai fruit, the present work aims to develop a fermented beverage acai and kefir. Preliminary tests were developed, selecting the samples F1, F2 and F3, being the F1 within what the legislation recommends. The physicochemical, microbiological characteristics of the fermented beverages F1, F2 and F3 were elaborated and evaluated using different amounts of acai, milk, sugar and kefir, F1 (85 g of acai; 85 g of milk; 30 g of milk kefir), F2 (160 g acai; 10 g sugar; 30 g water kefir) and F3 (170 g acai; 30 g water kefir) fermented at ± 2 ° C for 72h. The elaborated formulations showed satisfactory fermentation results. The elaborated drinks, F1 and F2, obtained the best results for the fermentations. The physicochemical parameters, total solids, protein, moisture and ash remained similar to the control drink, and it was evidenced that the fermentation process was not able to change these parameters, except for the F1 drink which had in its formulation the raw material milk. The formulations F1, F2 and F3 presented higher anthocyanin and flavonoid values than the literature of kefir fermented beverages and showed antioxidant activity. As for microbial load, there was an increase, to the detriment of the inclusion of kefir grains and were in sanitary hygienic conditions for consumption. Finally, the development of kefir fermented beverages contributed to food innovation and added value to the regional fruit by including it in new technologies.Língua PortuguesaAbertoKefirAçaíFermentationTrabalho de Conclusão de Curso (TCC)