| Sensory evaluation and analysis of pH, titratable acidity and microbial counts after 1, 7, 14 and 21 days of storage of five combinations of lyophilized Bifidobacterium longum and/or Lactobacillus acidophilus added to milk fermented with Streptococcus thermophilus were studied during storage at 4ºC. The taste and acidity sensory attributes were significantly (P<0.05) perceived as the storage time increased. Favourite combinations contained, initially, Bif. longum and L. acidophilus (10(8) and 10(7) cfu/mL, respectively) and Bif. longum only (10(8) cfu/mL). These combinations did not differ significantly among them and neither from the standard fermented milk. The lowest sensory scores and highest titratable acidity values were obtained for fermented... |
