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Adaptive acid tolerance response in Lactobacillus acidophilus |
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| Authors: | G.L. Lorca R.R. Raya M.P. Taranto G.F. de Valdez |
| Affiliation: | (1) Centro de Referencia para Lactobacilos (CERELA), Chacabuco, Tucumán, Argentina;(2) Cát. Microbiol. Superior, Facultad Bioquímica., Química y Farmacia., Universidad Nacional de Tucumán, Tucumán, Argentina |
| Abstract: | 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 case. © Rapid Science Ltd. 1998 |
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