De-fatted soy production process and value added by-products from de-fatted soy flour
First Claim
1. An improved ethanol production process comprising:
- (a) milling a carbohydrate-containing material to produce a carbohydrate-containing flour having a median particle size of less than about 100 microns;
(b) hydrolyzing the carbohydrate-containing flour under operating conditions to form a mixture comprising partially gelatinized carbohydrate-containing flour and cleaved terminal amylose groups, wherein the terminal amylose groups are cleaved from the carbohydrate-containing flour;
(c) milling soy hulls to produce a soy hull flour having a median particle size of less than about 100 microns;
(d) adding the soy hull flour to the mixture to form a slurry, the slurry comprising the partially gelatinized carbohydrate-containing flour, the cleaved terminal amylose groups, and the soy hull flour;
(e) fermenting the slurry to produce fermented slurry, the fermented slurry comprising ethanol and whole stillage; and
(f) distilling the fermented slurry to separate the ethanol from the whole stillage.
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Accused Products
Abstract
An improved process for producing de-fatted soy utilizing a de-fatted soy flour and for producing value added by-products from de-fatted soy flour wherein soybeans are de-hulled and the de-hulled stream ground to a flour consistency. The ground soy flour is mixed with water and other additives to produce a vitamin and mineral enriched stream that is then filtered to various value added by-products. In a preferred embodiment the vitamin and mineral enriched stream is filtered through a 0.1-1.0 micron membrane to produce a de-fatted soy product stream and a fatted soy product stream. The fatted soy product stream can be dried to produce dry, less than 12% water by weight, product B for use in cosmetics and pharmaceutical products. The de-fatted soy product can be filtered through reverse osmosis (RO) filtration unit to obtain a vitamin and mineral enriched product stream that can be dried to powder form and used as a food supplement additive I. If desired the full fatted soy flour or the de-fatted soy product stream can be combined with whole stillage from an ethanol process and used in producing various other value added products.
8 Citations
20 Claims
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1. An improved ethanol production process comprising:
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(a) milling a carbohydrate-containing material to produce a carbohydrate-containing flour having a median particle size of less than about 100 microns; (b) hydrolyzing the carbohydrate-containing flour under operating conditions to form a mixture comprising partially gelatinized carbohydrate-containing flour and cleaved terminal amylose groups, wherein the terminal amylose groups are cleaved from the carbohydrate-containing flour; (c) milling soy hulls to produce a soy hull flour having a median particle size of less than about 100 microns; (d) adding the soy hull flour to the mixture to form a slurry, the slurry comprising the partially gelatinized carbohydrate-containing flour, the cleaved terminal amylose groups, and the soy hull flour; (e) fermenting the slurry to produce fermented slurry, the fermented slurry comprising ethanol and whole stillage; and (f) distilling the fermented slurry to separate the ethanol from the whole stillage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification