This demonstrated the presence of a strong intra-strain fluctuation
in carbohydrate metabolism patterns of Lactobacillus species.
It is for this reason that the strains of L. brevis were registered in the
Spanish Type Culture Collection (Colección Española de Cultivos
Tipo, CECT) under different names: CECT 8181 (B), CECT 8183 (C)
and CECT 8182 (A). The one classified as D and registered as CECT
8184 corresponds to the specie Lactococcus lactis ssp lactis, which
was corroborated by biochemical tests.