Quality assessment of yogurt enriched with different types of fibers
Adriana Dabija | Georgiana Gabriela Codină | Anca-Mihaela Gâtlan | Lăcrămioara Rusu
This study evaluated the effect of the addition of four different types of dietary fibers on the rheological, physicochemical and sensory characteristics of yogurt. The four types of fibers (inulin, pea, oat and wheat) were added in the yogurt formulation in different proportions (1%–2.5%) using classical technology adapted to laboratory conditions. The obtained results showed that, the most viscous samples were obtained with wheat fibers addition (1% and 1.5%), while the best viscous characteristics were obtained for the samples with oat fibers addition (2% and 2.5%). The lowest syneresis value (38.86 ± 0.2) were observed for the samples with 1.5% pea fibers addition. Yogurt samples with the highest acceptance scores were samples with 2% wheat fibers and respectively with 2.5% pea fibers addition. All the tested fibers were compatible with the yogurt-manufacturing process. Therefore, the fibers addition in yogurt could be considered an alternative to incorporate dietary fibers in the human diet.
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