PRODUCTION OF OIL SEED PROTEIN ISOLATE

摘要

Oil seed protein isolates, particularly canola protein isolate, are produced at a high purity level of at least about 100 wt% (Nx 6.25) by a process wherein oil seed protein is extracted from oil seed meal, the resulting aqueous protein solution is concentrated to a protein content of at least about 200 g/L, and the concentrated protein solution is added to chilled wat er having a temperature below about 15~C to form protein micelles, which are settled to provide a protein micellar mass (PMM). The protein micellar mass is separated from supernatant and may be dried. The supernatant may be processe d to recover additional oil seed protein isolate by concentrating the supernatant and then drying the concentrated supernatant, to produce a prote in isolate having a protein content of at least about 90 wt%. The concentrated supernatant may be mixed in varying proportions with at least part of the PM M and the mixture dried to produce a protein isolate having a protein content of at least about 90 wt%.