Open AccessEffects of oxidoreduction potential combined with acetic acid, NaCl and temperature on the growth, acidification, and membrane properties of Lactobacillus plantarum
Author(s) -
Ouvry Ariane,
Waché Yves,
TourdotMaréchal Raphaëlle,
Diviès Charles,
Cachon Rémy
Publication year - 2002
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.2002.tb11356.x
Subject(s) - chemistry , acetic acid , membrane , lactobacillus plantarum , membrane potential , lactic acid , inorganic chemistry , biochemistry , bacteria , biology , genetics
The effects of oxidoreduction potential (Eh) combined with acetic acid, NaCl and temperature on the growth, acidification, and membrane properties of Lactobacillus plantarum were studied. The culture medium was set at pH 5, and two different Eh values were adjusted using nitrogen (Eh =+350 mV) or hydrogen (Eh =−300 mV) gas. In reducing condition, the growth was slowed and the acidification delayed at 37°C, but not at 10°C. A synergistic inhibitory effect of reducing Eh, acetic acid and NaCl was observed, mainly for delaying the lag phase before acidification. These results may be explained by changes in ATPase activity, membrane fluidity and surface properties.