The probiotic culture should be well-adapted to the conditions
present in the fermented sausage and become dominant in the final
product since fermented meat products contain a high natural
background microbiota. The growth of LAB in Iberian dry fermented
sausages, traditional meat products produced in the central-
west of Spain (Extremadura), depends on their ability to
tolerate the salt concentration (NaCl 2.5–3.5% (w/w)), pH values
(4.7–5.6), and water activity (0.84–0.85) of these products during
the ripening process