“…This is particularly well illustrated in the case of wheat and rye sourdough (Hammes et al, 2005;De Vuyst et al, 2009) that were a better source of new LAB than tropical cereal-based fermented foods. A long list of LAB species in different cereal-based fermented foods in DC has been compiled (Steinkraus, 1995;Beuchat, 1997;Haard et al, 1999;Nout & Sarkar, 1999;Hammes et al, 2005;Guyot, 2010). However, the diversity of species in the microbiota of a given fermented food is far less complex than that of other microbial ecosystems (sediments, soils, the human intestinal tract, etc.)…”