An adaptation phase was observed at approximately
10 h in the M1 medium after which vegetative growth
began; however, vegetative growth began immediately
in the M2, M3 and M4 media. Phase II was attained in the
M1 medium between 48 and 60 h of fermentation, between
26 and 34 h of fermentation in the M2 medium,
between 48 and 60 h of fermentation in the M3 medium
and between 24 and 32 h of fermentation in the M4 medium.
Phase III was observed after 34 h of fermentation
in the M1 medium, after 28 h of fermentation in the M2
medium, after 52 h of fermentation in the M3 medium
and after 22 h of fermentation in the M4 medium.