The plates containing
MRSS agar were incubated at 45 C for 72 h under anaerobic conditions.
For enumeration of L. delbrueckii subsp.bulgaricus, the
plates containing MRS pH 5.2 and RCA pH 5.3 were incubated at
45 C for 72 h under anaerobic conditions. S. thermophilus was
enumerated using ST agar at 30 C for 24e48 h, and M17 agar
supplemented with lactose incubated at 45 C for 48e72 h, both
under aerobic conditions. The starter culture L. lactis subsp. lactis
and L. lactis subsp. cremoris was enumerated using M17 supplemented
with lactose and incubated