Grain fractionation

Details Grain fractionation Grain fractionation

2005-08-30

2005-08-30

Brunsman, David (Department: 1755)

Sugar, starch, and carbohydrates

Processes

Carbohydrate manufacture and refining

C127S024000

Reexamination Certificate

active

06936110

ABSTRACT:
The present invention includes a method for extracting protein, oil and starch from grain. The method includes: Providing kernels or seeds comprising a germ and pericarp comprising protein, oil, and starch; Steeping the kernels or seeds in a steeping reactor for a time effective to soften the kernels and seeds; Milling the steeped corn kernels to separate the germ from the starch/pericarp forming a germ stream and a starch/pericarp stream; Subjecting the germ to rapid pressurization/depressurization in order to extract oil and protein from the germ; and separating the starch from the pericarp.

REFERENCES:
patent: 3474722 (1969-10-01), Stewart et al.
patent: 4936919 (1990-06-01), Schurmann

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