3.1. Tolerance to low pH
Before reaching the intestinal tract, probiotic bacteria must
pass through the stomach where the pH can be as low as
1.5–2 (Dunne etal.,2001). Boththestrains of Lactobacillus
plantarum showed different performance to lowpH(Table 2).
The strain 86 remained unaffected in acidic condition while
Strai n AD29 showed reduction in the viable count from7.28to
6.98 logcfuml1 within 2.5h.Other two isolates, Weissella