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Characterization of kefir produced in household conditions: Physicochemical and nutritional profile, and storage stability

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Resumo:Kefir, a traditional fermented food, has numerous health benefits due to its unique chemical composition, which is reflected in its excellent nutritional value. Physicochemical and microbial composition of kefir obtained from fermented milk are influenced by the type of the milk, grain to milk ratio, time and temperature of fermentation, and storage conditions. It is crucial that kefir characteristics are maintained during storage since continuous metabolic activities of residual kefir microbiota may occur. This study aimed to examine the nutritional profile of kefir produced in traditional in use conditions by fermentation of ultra-high temperature pasteurized (UHT) semi-skimmed cow milk using argentinean kefir grains and compare the stability and nutritional compliance of freshly made and refrigerated kefir. Results indicate that kefir produced under home use conditions maintains the expected characteristics with respect to the physicochemical parameters and composition, both after fermentation and after refrigerated storage. This work further contributes to the characterization of this food product that is so widely consumed around the world by focusing on kefir that was produced in a typical household setting.
Autores principais:Alves, Emília
Outros Autores:Ntungwe, Epole N.; Gregório, João; Rodrigues, Luis M.; Pereira-Leite, Catarina; Caleja, Cristina; Pereira, Eliana; Barros, Lillian; Aguilar-Vilas, M. Victorina; Rosado, Catarina; Rijo, Patrícia
Assunto:Fatty acid profile Household conditions Kefir Nutritional composition Particle size Polydispersity index Storage time influence Zeta potential
Ano:2021
País:Portugal
Tipo de documento:artigo
Tipo de acesso:acesso aberto
Instituição associada:Instituto Politécnico de Bragança
Idioma:inglês
Origem:Biblioteca Digital do IPB

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