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>Effect of cold storage on culture viability and some rheological properties of fermented milk prepared with yogurt and probiotic bacteria
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Effect of cold storage on culture viability and some rheological properties of fermented milk prepared with yogurt and probiotic bacteria
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机译:冷藏对酸奶和益生菌发酵乳发酵能力和部分流变特性的影响
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摘要
We examined the effect of storage time on culture viability and some rheological properties (yield stress, storage modulus, loss modulus, linear viscoelastic region, structural recuperation and firmness) of fermented milk made with Lactobacillus delbrueckii ssp. bulgaricus, Lactobacillus acidophilus (LA) and Bifidobacterium animalis ssp. lactis in coculture with Streptococcus thermophilus (ST). Acidification profiles and factors that affect viability (postfermentation acidification, acidity and dissolved oxygen) were also studied during 35 days at 4C. Fermented milk prepared with a coculture of ST and Bifidobacterium lactis gave the most constant rheological behavior and the best cell viability during cold storage; it was superior to ST plus LA for probiotic fermented milk production.
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