In addition, carbon catabolite repression (CCR) is
observed in most LAB, where preferred sugars such as glucose
repress the utilization of other non-favourable sugars such as
xylose and arabinose (8,9). Furthermore, the formation of byproducts
limits the yield of lactic acid and increases the purification cost
Interestingly, Enterococcus mundtii 25, a L strain isolated
in laboratory, can efficiently ferment either glucose (11)