Patent ID: 7687087
Filing Date: 2010-03-30
Classification: A23J

Abstract:
1. A process of preparing a canola protein isolate, which comprises: (a) extracting a canola oil seed meal at a temperature of at least about 5° C. using a food grade salt solution having an ionic strength of at least about 0.10 and a pH of about 5 to about 6.8 to cause solubilization of protein in said oil seed meal and to form an aqueous protein solution having a protein content of about 5 to about 30 g/L, (b) separating the aqueous protein solution from residual oil seed meal, (c) increasing the protein concentration of said aqueous protein solution to at least about 200 g/L while maintaining the ionic strength substantially constant by using a selective membrane technique to provide a concentrated protein solution, (d) diluting said concentrated protein solution into chilled water having a temperature below about 15° C. to cause the formation of protein micelles, (e) settling the protein micelles to form an amorphous, sticky, gelatinous, gluten-like micellar mass, and (f) separating the protein micellar mass from supernatant having a protein content of at least about 100 wt % as determined by Kjeldahl nitrogen ×6.25 on a dry weight basis; and (g) processing the supernatant to recover additional quantities of canola protein isolate therefrom.