Wheat flour endogenous lipids tremendously affect bread LV.
Altering the composition of the endogenous lipid fraction with lipases
increases bread LV, the extent depending on the specificity
of the respective lipases. Analysis of the lipid population of fermented
bread dough revealed that hydrolysis of the galactolipids
and to a lesser extent of phospholipids is important in terms of
affecting bread LV. Due to lipolysis, the FFA took place in the free
lipid fraction and the remaining ‘lyso’-lipid(s) remained in the
bound lipid fraction. This points to an interaction of their hydrophilic
part with other flour constituents, and in particular, gluten.