Bakers’ yeast (Saccharomyces cerevisiae) not only produces carbon
dioxide, but also small quantities of alcohols and organic acids
(Delcour & Hoseney, 2010; Jayaram et al., 2013). The latter causes a
pH drop to ca. 5 in fermenting dough (Jayaram et al., 2013). pH can
affect protein solubility in the dough aqueous phase, protein
conformation, surface activity and foaming properties (Kinsella,
1981). Against this background, this work aimed at studying how
fermentation impacts DL yield, composition (with a focus on proteins)
and functional (i.e. foaming) properties.