Process for modulating the nutritional value of whole stillage and distillers products associated thereto

A process of modulating the nutritional content of a whole stillage obtained after the fermentation of a biomass, the process comprising:

• (a) contacting a recombinant lactic acid bacteria (LAB) host cell, a yeast and the biomass under conditions to cause the conversion of at least in part of the biomass into a fermentation product and to obtain a fermented biomass comprising the whole stillage and the fermentation product;
• and
• (b) separating the whole stillage from the fermentation product;
• wherein the recombinant LAB host cell is capable of expressing one or more first heterologous enzyme for converting the biomass into the fermentation product;
• and
• wherein the whole stillage obtained after step (b) has a different nutritional content than a control whole stillage submitted to step (a) in the absence of the recombinant LAB host cell.