Adaptative Acid Tolerance Response in Lactobacillus acidophillus

LORCA, GRACIELA; RAYA, RAUL; TARANTO, MARIA PIA; FONT DE VALDEZ, GRACIELA

BIOTECHNOLOGY LETTERS

SPRINGER

Lugar: Amsterdam, Holanda; Año: 1998 vol. 20 p. 239 - 241

0141-5492

Stationary phase cultures of Lactobacillus acidophilus CRL 639 are naturally acid resistant to pH 3.0 while exponential phase cells induce an acid tolerance response upon exposure to sublethal pH (3.8–6.0). Maximal response was achieved after adaptation at pH 4.2 and pH 5.0. Protein synthesis was required in the latter caseLactobacillus acidophilus CRL 639 are naturally acid resistant to pH 3.0 while exponential phase cells induce an acid tolerance response upon exposure to sublethal pH (3.8–6.0). Maximal response was achieved after adaptation at pH 4.2 and pH 5.0. Protein synthesis was required in the latter case