Conclusions
Under the conditions of this study, it was found that the MRS
containing bile was selective for enumeration of L. acidophilus La5
from yoghurt, while RCA agar pH 5.3 and ST agar were effective for
enumeration of L. bulgaricus and S. thermophilus, respectively. For
the probiotic Prato cheese, the effective culture medium for
enumeration of L. acidophilus was the MRSS incubated at 45 C for 72 h under anaerobic conditions, while M17 agar containing lactose
and incubated at 30 C under aerobic conditions was effective for
enumeration of Lactococcus lactis.
For obtaining reliable results in the selective enumeration of
probiotic microorganisms in fermented dairy products is necessary
to evaluate different methods, both for the product under study and
pure cultures, since the presence of different strains may compromise
the results, and therefore lead to misleading conclusions
about the presence and number of probiotics in dairy products.
ConclusionsUnder the conditions of this study, it was found that the MRScontaining bile was selective for enumeration of L. acidophilus La5from yoghurt, while RCA agar pH 5.3 and ST agar were effective forenumeration of L. bulgaricus and S. thermophilus, respectively. Forthe probiotic Prato cheese, the effective culture medium forenumeration of L. acidophilus was the MRSS incubated at 45 C for 72 h under anaerobic conditions, while M17 agar containing lactoseand incubated at 30 C under aerobic conditions was effective forenumeration of Lactococcus lactis.For obtaining reliable results in the selective enumeration ofprobiotic microorganisms in fermented dairy products is necessaryto evaluate different methods, both for the product under study andpure cultures, since the presence of different strains may compromisethe results, and therefore lead to misleading conclusionsabout the presence and number of probiotics in dairy products.
การแปล กรุณารอสักครู่..