The five halotolerant lactobacilli, no matter their
origin, showed a similar behavior under the dierent
pH tested. The most stressful conditions for the five
Lactobacillus strains were pH 2.0 where they could
not grow (showing a sub-lethal growth) due to the
extremely acidity. At pH 3.0, all the strains could
survive and even started to grow. At H 4.0 all the
strains could grow and between pH 5.0 to 9.0 all the
strains showed a good growth. The good growth at pH
9.0 indicated that the strains were able to survive under
the small intestine conditions. The capacity to survive
under the most stressful conditions (pH 2.0 and pH
9.0) indicated that the five strains are able to survive
under the pH conditions usually found inside the
gastrointestinal tract as a previously reported (Melgar-
Lalanne et al., 2013). Also, the high growth between
pH 4.0 to 9.0 has possible for these strains to be
present in a large number of fermented foods.