초록 ▼

Slurries of amylaceous flour from milled seed of cereals, beans, and legumes containing dispersed particles of starch-protein agglomerates are subjected to high pressure processing to obtain deagglomerated starch granules and protein. Further treatment of the deagglomerated product leads to the reco

Slurries of amylaceous flour from milled seed of cereals, beans, and legumes containing dispersed particles of starch-protein agglomerates are subjected to high pressure processing to obtain deagglomerated starch granules and protein. Further treatment of the deagglomerated product leads to the recovery of a novel protein-coated starch product or to the isolation of starch and protein of high purity and quality. The method greatly improves the recovery of starch during classification/separation from protein and is therefore economical. Starch reduced to individual granules, with low starch damage, low protein content, and with improved pasting characteristics, can be produced using this deagglomerization method. The protein obtained by the process has better solubility and is therefore suitable for beverage applications.

대표청구항 ▼

1. A method for processing an amylaceous flour, said method comprising: a. providing an aqueous slurry of an amylaceous flour comprising starch-protein and starch-starch agglomerates; b. subjecting said slurry to conditions of shear, cavitation and impact; and c. obtaining a product comprisi

1. A method for processing an amylaceous flour, said method comprising: a. providing an aqueous slurry of an amylaceous flour comprising starch-protein and starch-starch agglomerates; b. subjecting said slurry to conditions of shear, cavitation and impact; and c. obtaining a product comprising minimal starch damage and the homogeneous dispersion of individual starch granules and protein in a liquid matrix. 2. The method of claim 1, wherein said conditions of shear, cavitation and impact are imparted by microfluidization.3. The method of claim 1, wherein said impact is imparted by converging two streams of said slurry.4. The method of claim 1, wherein said impact is imparted by particle—particle collision.5. The method of claim 1, wherein step (b) is conducted under high pressure.6. The method of claim 5, wherein said high pressure is in the range of about 3000-30,000 psi.7. The method of claim 5 wherein said high pressure is in the range of about 9000-15,000 psi.8. The method of claim 1, wherein said amylaceous flour is milled seed selected from the group consisting of cereals, beans and legumes.9. The method of claim 1, wherein said amylaceous flour is milled seed selected from the group consisting of rice, corn, oats, wheat, rye, soybeans, and peas.10. The method of claim 1, wherein said amylaceous flour is milled rice.11. The method of claim 1, and further comprising the step of separating said deagglomerated starch granules from said protein.12. The method of claim 1, and further comprising recovering said starch granules and said protein from said slurry.13. The method of claim 1, and further comprising the step of drying said deagglomerated starch granules in the presence of protein to promote coating of said starch granules with said protein.14. The method of claim 13, wherein said drying is spray drying.15. A product produced by the process of claim 1.16. A product produced by the process of claim 2.17. A product produced by the process of claim 3.18. A product produced by the process of claim 4.19. A product produced by the process of claim 5.20. A product produced by the process of claim 6.21. A product produced by the process of claim 7.22. A product produced by the process of claim 8.23. A product produced by the process of claim 9.24. A product produced by the process of claim 10.25. A product produced by the process of claim 11.26. A product produced by the process of claim 12.27. A product produced by the process of claim 13.28. A product produced by the process of claim 14.29. A protein-coated starch product. 30. The protein-coated starch product of claim 29 wherein the starch is rice starch.