A total of 75 samples were studied. All samples were carefully handled to avoid contamination, and the appropriate quality assurance procedures and precautions were followed to ensure the reliability of results.
The samples were divided between fermented goat (n = 20) and cow milk products (n = 55), and each group was divided into two sub-groups: (a) yogurts fermented with the traditional bacteria Lactobacillus delbrueckii spss. bulgaricus (LB) and S. thermophilus (ST) (n = 8 for commercial goat yoghurts; n = 37 for commercial cow yogurts); and