Abstract: Process for reducing the nucleic acid content in the production of an edible protein-containing substance comprising contacting a grown non-toxic microfungus of the class Fungi Imperfecti with a solvent comprising between 40% and 100% (by volume) of a lower alkanol containing up to three carbon atoms and thereafter incubating at a pH between 5 and 9.5 and at a temperature between 30.degree. C. and 80.degree. C. for a time of at least 90 seconds. There is disclosed an edible protein-containing substance of a non-viable edible non-toxic fungal mycelium of a non-toxic strain of the microfungus. The protein-containing substance is characterized by an essentially white color and improved ease of processing to a form suitable for food use.

Abstract: A fermentation product comprising a nonviable edible proteinaceous mass derived from a non-toxic fungal mycelium of a non-toxic strain of Fusarium preferably selected from the group consisting of Fusarium graminearum, Fusarium solani and Fusarium oxysporum possessing a reduced level of RNA of below 4%.

Abstract: A process of texturizing a mycelial fungal mass and resultant product is disclosed. The fungal mycelial mass containing 20% to 35% and preferably 23% to 33% solids in water is extruded through a die containing a foraminous member and a compression zone whereby a meat-like material is obtained.