The present invention presents an alternative to the direct implementation of an industrial scale second generation bioethanol process with the integration of the second generation into the existing first generation bioethanol processes, which aims to reduce the current barriers to process change/investments. In particular, the present invention relates to an integrated second generation process for producing bioethanol comprising at least one fungal cultivation stage for producing ethanol and fungal biomass. The present invention also relates to a novel fungal biomass, rich in protein and essential amino acids, which is produced with said integrated second generation process for producing bioethanol for use as a nutritious substitute for human and domestic animal use.
