Effects of low concentrations of fatty acids on <i>Escherichia coli</i> depend on the kind of culture medium and incubation temperature.

ABSTRACT: Fatty acids play important, yet different roles in bacterial physiology, specifically their growth, either stimulating or inhibiting this parameter which are of biotechnological importance. Here, we present results showing to what degree short- and medium-chain fatty acids (butyric acid (butanoic acid, C4:0); caproic acid (hexanoic acid, C6:0); caprylic acid (octanoic acid, C8:0)), used at relatively low concentrations (in a range of μg/mL, contrary to previously reported mg/mL which revealed inhibitory effects on bacterial growth) affect growth of Escherichia coli K-12 (MG1655 laboratory strain) depending on various conditions. In rich medium (LB) positive effects of all tested fatty acids on E. coli growth were observed, while temperature of incubation (growth at 25 °C and

SUBMITTER: Stencel B 

PROVIDER: S-EPMC12665612 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature