The aim of this work is to demonstrate the effects of a static magnetic field (SMF) with an induction 12 equal to 57 mT on the viability and membrane lipid composition of Salmonella Hadar. Results showed an increase in the viability of exposed bacteria compared to controls after 9 h of exposure. Analysis with gas chromatography of total lipids (TLs) and different fractions of phospholipids: phosphatidylglycerols (PGs), phosphatidylethanolamines (PEs), and cardiolipins (CLs), separated by thin layer chromatography revealed changes in fatty acid levels during exposure. For TLs, the unsaturated fatty acids/saturated fatty acids ratio (UFAs/SFAs) had significantly increased after 9 h of exposure. The variation of this ratio seems to be essentially due to the increase of the proportion of unsaturated fatty acids with 18 carbons, in particular C_18:1. The analyses of fatty acid composition carried out on the scale of each fraction of phospholipids showed that CLs contributed significantly to the increase of the proportion of the unsaturated fatty acids between 6 and 9 h of exposure thanks to their unsaturated chains with 18 carbons (especially C_18:2). CLs appear to be the main phospholipid involved in the adaptation of S. Hadar membranes to the SMF.

这项工作的目的是证明感应强度等于12 mT的12静磁场（SMF）对沙门氏菌的生存力和膜脂成分的影响哈达尔。结果显示，暴露9 h后，与对照组相比，暴露细菌的生存能力有所提高。用薄层色谱分离的总脂质（TLs）和不同比例的磷脂：磷脂酰甘油（PGs），磷脂酰乙醇胺（PEs）和心磷脂（CLs）的气相色谱分析表明，暴露期间脂肪酸水平发生了变化。对于TLs，暴露9小时后，不饱和脂肪酸/饱和脂肪酸比率（UFAs / SFAs）显着增加。该比例的变化似乎主要是由于具有18个碳原子，特别是C _18：1的不饱和脂肪酸比例的增加。根据磷脂各部分的规模进行的脂肪酸组成分析表明，由于其18个碳原子的不饱和链（尤其是C原子），CLs在暴露6至9小时之间显着促进了不饱和脂肪酸比例的增加。_18：2）。CL似乎是参与S. Hadar膜适应SMF的主要磷脂。