Patent ID: 9433236
Filing Date: 2016-09-06
CPC Classification: A23D,A23J,A23L,C08B,C11B,Y02P

Claim Text:
1. A method of preparing β-glucan, protein, starch and lipid concentrates from oat, comprising the steps of: (a) extracting non-heat-treated oat or oat treated at a temperature up to 100° C. and at a relative humidity at most 16% with supercritical CO (b) dry-milling the fat-extracted oat fraction by impact milling into oatmeal having such a particle size that at least 95% of the particles are between 1.0 and 3,000 μm calculated on the basis of the volume, (c) dividing the thus obtained oatmeal into a first coarse fraction and a first fine fraction, said first coarse fraction comprising a β-glucan concentrate having a β-glucan content of 30 to 50% and a fat content of less than 3.5%, and said first fine fraction comprising a starch concentrate having a starch content of more than 70%, and said division being performed by using one or more operations selected from sieving and air classification and, optionally, dry milling, (d) dividing said first fine fraction further by sieving or air classification into a second coarse fraction, a second fine fraction and a third fine fraction, said second coarse fraction comprising a β-glucan concentrate having a β-glucan content of 45 to 60% and a fat content of less than 2%, said second fine fraction comprising a starch concentrate having a starch content of more than 80%, and said third fine fraction comprising a protein concentrate having a protein content of more than 30% and up to 80%.