Why Does Traditionally-Made Sourdough Bread Resist Mold So Much Better Than Modern Bread? New Research Reveals

Traditionally-made sourdough breads have a good degree of resistance to mold, in contrast with conventionally-made leavened bread. The exact mechanisms for this have been unclear. But now, new research has found that some of the bacteria used in sourdough production convert the linoleic acid that is present in bread flour into a powerfully anti-fungal compound.