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US 12,369,602 B2Granted
Process for recovering protein and fibre compositions from brewers' spent grain
AssigneeAnheuser-Busch InBev S.A.
InventorsSteffen Münch, Daniel Valdeperez
Life of this patent
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Abstract
The present disclosure provides processes for the production of protein and fibre compositions from brewer's spent grain. The process comprises micronising dried brewer's spent grain using a pin mill and fractionating the micronised brewer's spent grain using an air classifier. The present disclosure also provides protein and fibre compositions, processes for producing food products incorporating the protein or fibre compositions, and food products comprising the protein or fibre compositions.
Claims17
A process for producing a fibre composition and a protein composition, wherein the process comprises:
- a) providing dried brewer's spent grain having a moisture content of 10% by weight or less;
- b) micronising the dried brewer's spent grain using a pin mill to provide micronised brewer's spent grain having a particle size (d50) of from 30 to 130 μm and a particle size (d90) of from 150 to 350 μm, as determined by laser diffraction, wherein “d50” refers to the size at which 50% of a composition's volume comprises particles with a size less than the specified value and “d90” refers to the size at which 90% of a composition's volume comprises particles with a size less than the specified value;
- c) fractionating the micronised brewer's spent grain using an air classifier to provide a coarse fraction and a fine fraction;
- and
- d) collecting the coarse fraction to provide the fibre composition and collecting the fine fraction to provide the protein composition, wherein the fibre composition has a total combined content of protein and dietary fibre (% dry matter by weight) of between 70 and 100% and a ratio of protein to dietary fibre (dry matter by weight) of between 0.30 and 0.55;
- and, wherein the protein composition has a total combined content of protein and dietary fibre (% dry matter by weight) of between 80 and 100% and a ratio of protein to dietary fibre (dry matter by weight) of between 0.75 and 1.5;
- wherein the total dietary fibre content is determined by AOAC 991.43 and the total protein content is determined by the Kjeldahl method using a conversion factor of 6.25.
4 more elements
A process for producing a fibre composition and a protein composition, wherein the process comprises:
- a) providing dried brewer's spent grain having a moisture content of 10% by weight or less;
- b) micronising the dried brewer's spent grain using a pin mill to provide micronized brewer's spent grain having a particle size (d50) of from 30 to 130 μm and a particle size (d90) of from 150 to 350 μm, as determined by laser diffraction, wherein “d50” refers to the size at which 50% of a composition's volume comprises particles with a size less than the specified value and “d90” refers to the size at which 90% of a composition's volume comprises particles with a size less than the specified value;
- c) fractionating the micronised brewer's spent grain using an air classifier to provide a first coarse fraction and a first fine fraction;
- d) micronising the first coarse fraction to provide a micronised first coarse fraction;
- e) fractionating the micronised first coarse fraction to provide a second coarse fraction and a second fine fraction;
- f) collecting the second coarse fraction to provide the fibre composition, wherein the fibre composition has a total combined content of protein and dietary fibre (% dry matter by weight) of between 70 and 100% and a ratio of protein to dietary fibre (dry matter by weight) of between 0.30 and 0.55;
- and
- g) combining the first and second fine fractions to provide the protein composition, wherein the protein composition has a total combined content of protein and dietary fibre (% dry matter by weight) of between 80 and 100% and a ratio of protein to dietary fibre (dry matter by weight) of between 0.75 and 1.5;
- wherein the total dietary fibre content is determined by AOAC 991.43 and the total protein content is determined by the Kjeldahl method using a conversion factor of 6.25.
6 more elements
A process for producing a fibre composition and a protein composition, wherein the process comprises:
- a) providing dried brewer's spent grain having a moisture content of 10% by weight or less;
- b) micronising the dried brewer's spent grain using a pin mill to provide micronized brewer's spent grain having a particle size (d50) of from 30 to 130 μm and a particle size (d90) of from 150 to 350 μm, as determined by laser diffraction, wherein “d50” refers to the size at which 50% of a composition's volume comprises particles with a size less than the specified value and “d90” refers to the size at which 90% of a composition's volume comprises particles with a size less than the specified value;
- c) fractionating the micronised brewer's spent grain using an air classifier to provide a first coarse fraction and a first fine fraction;
- d) fractionating the first coarse fraction to provide a second coarse fraction and a second fine fraction;
- e) collecting the second coarse fraction to provide the fibre composition, wherein the fibre composition has a total combined content of protein and dietary fibre (% dry matter by weight) of between 70 and 100% and a ratio of protein to dietary fibre (dry matter by weight) of between 0.30 and 0.55;
- and
- f) combining the first and second fine fractions to provide the protein composition, wherein the protein composition has a total combined content of protein and dietary fibre (% dry matter by weight) of between 80 and 100% and a ratio of protein to dietary fibre (dry matter by weight) of between 0.75 and 1.5;
- wherein the total dietary fibre content is determined by AOAC 991.43 and the total protein content is determined by the Kjeldahl method using a conversion factor of 6.25.
5 more elements
Dependencies are inferred from the claim text.