Size classified cereal starch granules

Claim 2

A LARGE GRANULE CEREAL STARCH PRODUCT OBTAINED BY WET PROCESS SEPERATION FROM A NATIVE COLLOID SLURRY OF BIMODAL GRANULE STARCH SELECTED FROM THE GROUP OF WHEAT, BARLEY AND RYE STARCHES, AT LEAST ABOUT 22% OF THE TOTAL NUMBER OF GRANULES OF SAID LARGE GRANULE CEREAL STARCH BEING AT LEAST 22 MICRONS IN SIZE, ABOUT 99% BY WEIGHT OF THE GRANULE ARE OF OTHER 12 MICRONS IN SIZE, SAID STARCH BEING SUBSTANTIALLY FREE OF OTHER MATTER, AND HVING BEEN OBTAINED BY HYDROCYCLONE SEPARATION DIRECTLY FROM NATIVE COLLOID STARCH SLURRY FROM WHICH SUBSTANTIALLY ALL OF GLUTEN, FIBER AND OTHER MATTER HAVE BEEN REMOVED.

Claim 3

The product of claim 1, in which at least 55% by weight of the granules are larger than 22 microns.

Claim 4

The product of claim 1, in which the starch is prime grade wheat starch derived from a continuous wet batter process to obtain a native colloid starch slurry, and is then subjected to hydrocyclonic separation while yet in native colloid slurry.

Claim 5

The starch product of claim 1, in which the starch granules have been acid-modified.

Claim 6

A large granule cereal starch product obtained by wet process separation from a native colloid slurry of a bimodal granule starch selected from the group consisting of wheat, barley, or rye starches, said starch product comprising at least 99 percent by weight granules at least 12 microns in size, and being substantially free of water soluble carbohydrates, and containing less than about 0.01 percent ether extractible fats, said starch having been obtained by hydrocyclone separation directly from native colloid starch slurry from which substantially all of gluten, fiber, and other matter has been removed.

Claim 7

A large granule cereal starch product obtained by wet process separation from a native colloid slurry of a bimodal granule starch selected from the group consisting of wheat, barley, or rye starches, said starch product comprising at least 99 percent by weight granules at least 12 microns in size, and being substantially free of water soluble carbohydrates, and containing less than about 0.01 percent ether extractible fats, said starch having been obtained by hydrocyclone separation directly from native colloid starch slurry from which substantially all of gluten, fiber, and other matter has been removed.

Claim 8

The product of claim 5, in which at least about 22 percent of the total number of granules are 22 microns in size, or larger.

Claim 9

The product of claim 6, which has been oxidized.

Claim 10

The process of making a large granule cereal starch selected from the group consisting of wheat, barley, and rye, the steps comprising first obtaining a native colloid starch slurry substantially free of gluten, fiber and other matter than subjecting said native colloid starch slurry to hydrocyclonic separation in a first hydrocyclone, collecting the partially separated large granule underflow slurry from said first hydrocyclone, subjecting sid partially separated large granule underflow slurry to hydrocyclonic separation in a second hydrocyclone, and collecting the large granule underflow from said second hydrocyclone to obtain a large granule cereal starch having at least 22 percent granules as large as 22 microns, and substantially free of matter other than unbroken starch granules.

Claim 11

The process of making a large granule cereal starch selected from the group consisting of wheat, barley, and rye, the steps comprising first obtaining a native colloid starch slurry substantially free of gluten, fiber and other matter than subjecting said native colloid starch slurry to hydrocyclonic separation in a first hydrocyclone, collecting the partially separated large granule underflow slurry from said first hydrocyclone, subjecting sid partially separated large granule underflow slurry to hydrocyclonic separation in a second hydrocyclone, and collecting the large granule underflow from said second hydrocyclone to obtain a large granule cereal starch having at least 22 percent granules as large as 22 microns, and substantially free of matter other than unbroken starch granules.

Claim 12

The process of claim 8, including the step of collecting the small granule starch overflow from said first and second hydrocyclones.

Claim 13

The process of claim 8, in which the native colloid slurry is prime grade wheat starch slurry substantially free of salt, fiber, gluten and all foreign materials.

Claim 14

The process of claim 8, in which the starch is wheat starch made by the continuous batter process, and the feed slurry to said first and second hydrocyclones is maintained at about 7.5*Be.

Claim 15

The process of claim 11, in which the first and second hydrocyclones have substantially the following dimensions:

Claim 16

The process of claim 12, in which the partially separated underflow from said first hydrocyclone is diluted with water to provide a partially separated input feed slurry to said second hydrocyclone at a feed solids level of about 7.5*Be., and about 13.55% solids, dry basis.

Claim 17

The process of claim 12, in which the hydraulic feed pressure to said first and second hydrocyclones is maintained in the range of about 150-210 pounds per square inch gage.

Claim 18

The process of claim 14, in which the input feed pressure to said first hydrocyclone is maintained at about 200 pounds per square inch above atmospheric pressure.

Claim 19

A large granule cereal starch product obtained by wet process separation from a native colloid slurry of bimodal granule starch selected from the group consisting of wheat, barley or rye starches, said improved starch product having a sub-sieve value substantially higher than 10.8 microns, said starch having been obtained by hydrocyclone separation directly from native colloid starch slurry.

Claim 20

A large granule cereal starch product obtained by wet process separation from a native colloid slurry of bimodal granule starch selected from the group consisting of wheat, barley or rye starches, said improved starch product having a sub-sieve value substantially higher than 10.8 microns, said starch having been obtained by hydrocyclone separation directly from native colloid starch slurry.

Claim 21

The product of claim 16, having a sub-sieve value less than about 20.8, but substantially higher than 10.8.

Claim 22

The product of claim 16, having a sub-sieve value of at least about 19.1.

Claim 23

The product of claim 16, in which the sub-sieve value is obtained on said large granule product from which substantially all of the gluten, fiber and other matter has been removed.

Claim 24

A large granule cereal starch selected from the group consisting of wheat, barley and rye starches, at least about 22 percent of the total number of granules being at least 22 microns in size, said starch having a sub-sieve value substantially greater than that of prime grade wheat starch, and said starch having been obtained by hydrocyclone separation directly from native colloid starch slurry from which substantially all gluten fiber and other non-starch matter have been removed.

Claim 25

A large granule cereal starch selected from the group consisting of wheat, barley and rye starches, at least about 22 percent of the total number of granules being at least 22 microns in size, said starch having a sub-sieve value substantially greater than that of prime grade wheat starch, and said starch having been obtained by hydrocyclone separation directly from native colloid starch slurry from which substantially all gluten fiber and other non-starch matter have been removed.

Claim 26

The large granule starch of claim 20, in which the subsieve value is substantially more than about 10.8 microns.

Claim 27

The large granule starch of claim 20, in which the subsieve value is more than about 19.1 microns.

Claim 28

The large granule starch of claim 20, in which the subsieve value is less than about 20.8, but substantially more than about 10.8.

Claim 29

A large granule cereal starch product selected from the group consisting of wheat, barley or rye starches, said starch comprising at least 22 percent granules which are 22 microns in size or larger, and having a sub-sieve value higher than that of prime grade bimodal cereal starch of the selected type, tested under comparable conditions.

Claim 30

A large granule cereal starch product selected from the group consisting of wheat, barley or rye starches, said starch comprising at least 22 percent granules which are 22 microns in size or larger, and having a sub-sieve value higher than that of prime grade bimodal cereal starch of the selected type, tested under comparable conditions.

Claim 31

The large granule cereal starch product of claim 24, in which the sub-sieve value is higher than 10.8.

Claim 32

The starch product of claim 25 in which the cereal starch is wheat.

Claim 33

The starch product of claim 26, in which the sub-sieve value is considerably higher than 10.8.

Claim 34

The starch product of claim 27, in which the sub-sieve value is at least four units higher than the sub-sieve value for prime grade bimodal wheat starch granules which are subjected to the same sub-sieve tests.