摘要:
Whole grain, such as wheat, barley, rye, and/or rice, can be processed by (a) steeping the grain in an aqueous liquid to produce softened grain, (b) milling the softened grain to produce milled grain, (c) liquefying the milled grain by contacting it with amylase and heating it to a temperature of at least about 50° C., producing a liquefied material, (d) at least partially saccharifying the liquefied material by contacting it with amyloglucosidase at a temperature of at least about 50° C., producing a first saccharified material, and (e) separating fiber and germ from the first saccharified material, producing a screened material that is substantially free of fiber and germ. The process also includes the steps of (f) further saccharifying and fermenting the screened material with a microorganism that produces ethanol, thereby producing a broth that comprises ethanol, soluble protein, and insoluble protein, and (g) separating ethanol from the broth. A protein-rich product can be recovered from the broth that comprises both gluten from the grain and microorganism from the fermenting step.
摘要:
Whole grain, such as wheat, barley, rye, and/or rice, can be processed by (a) steeping the grain or at least partially dehulled grain in an aqueous liquid to produce softened grain, (b) milling the softened grain to produce milled grain, (c) liquefying the milled grain by contacting it with amylase and heating it to a temperature of at least about 50° C., producing a liquefied material, (d) at least partially saccharifying the liquefied material by contacting it with amyloglucosidase at a temperature of at least about 50° C., producing a first saccharified material, and (e) separating fiber and germ from the first saccharified material, producing a screened material that is substantially free of fiber and wheat germ. The process also includes the steps of (f) further saccharifying the screened material by contacting it with amyloglucosidase at a temperature of at least about 50° C., producing a second saccharified material, (g) membrane filtering the second saccharified material, producing a permeate that comprises primarily dextrose and other soluble components and a retentate that comprises insoluble protein, and (h) purifying the permeate by chromatographic separation, producing a purified dextrose stream. The chromatographic separation can also produce a raffinate, and the process can further include the steps of (i) combining the retentate from the membrane filtration and the raffinate from the chromatographic separation to form a fermentation medium, (j) fermenting the fermentation medium aerobically with a microorganism, (k) separating a protein product that comprises insoluble protein and microorganism from the medium, and (l) drying the protein product.
摘要:
The present invention provides a method for producing sucralose from a feed stream resulting from the chlorination of a sucrose-6-acylate in a reaction vehicle. The feed stream includes a sucralose-6-acylate, the reaction vehicle, water, and salts. The salts include one or more selected from the group consisting of alkali metal chlorides, alkaline earth metal chlorides and ammonium chloride. The method includes: (i) deacylation of the sucralose-6-acylate by treatment with a base to afford a product stream comprising sucralose; (ii) partial removal of water and, optionally, reaction vehicle from the product stream of (i) in order to cause precipitation of the salts from the product stream; (iii) removal of the precipitated salts from the product stream of (ii); and (iv) isolation of sucralose from the product stream of (iii).
摘要:
The present invention provides a method for producing sucralose from a feed stream resulting from the chlorination of a sucrose-6-acylate in a reaction vehicle. The feed stream includes a sucralose-6-acylate, the reaction vehicle, water, and salts. The salts include one or more selected from the group consisting of alkali metal chlorides, alkaline earth metal chlorides and ammonium chloride. The method includes: (i) deacylation of the sucralose-6-acylate by treatment with a base to afford a product stream comprising sucralose; (ii) partial removal of water and, optionally, reaction vehicle from the product stream of (i) in order to cause precipitation of the salts from the product stream; (iii) removal of the precipitated salts from the product stream of (ii); and (iv) isolation of sucralose from the product stream of (iii).
摘要:
We disclose a process for the removal of phosphorous and ammonia from an aqueous stream by contacting the aqueous stream with magnesium and base in a first zone having a first pH, to form an (n−1)th mixed stream and a first portion of struvite; separating the (n−1)th mixed stream from the first portion of struvite; removing at least some struvite from the first portion of struvite; contacting the (n−1)th mixed stream with base in an nth zone, wherein n is an integer incrementing from 2 to nmax, wherein nmax is an integer from 2 to about 5, and wherein the nth zone has an nth pH higher than the (n−1)th pH, to form an nth mixed stream and an nth portion of struvite, except no base is added and the nth pH need not be higher than the (n−1)th pH when n=nmax; separating the nth mixed stream from the nth portion of struvite; returning the nth portion of struvite to the (n−1)th zone; and, if n
摘要:
A process for the recovery of a carbohydrate selected from sucralose and sucralose-6-esters from an aqueous feed stream is disclosed. The process comprises extracting the feed stream with an organic solvent, such as ethyl acetate, back extracting the resulting carbohydrate-containing organic extract with an aqueous solvent, and either crystallizing the carbohydrate from the organic solvent or replacing the organic solvent with water and crystallizing the carbohydrate from water. The process results in an increased overall yield of the carbohydrate.
摘要:
A process for the extraction of sucralose from an aqueous solution containing at least sucralose, other chlorinated saccharides, sodium chloride and dimethylammonium chloride into an organic solvent for sucralose by contacting said organic solvent with said solution to extract sucralose into the organic solvent. The ratio of sodium chloride to dimethylammonium chloride in the aqueous solution is increased prior to or during contact so as to increase the partition coefficient of sucralose into said organic solvent.
摘要:
A process for the extraction of sucralose from an aqueous solution containing at least sucralose, other chlorinated saccharides, sodium chloride and dimethylammonium chloride into an organic solvent for sucralose by contacting said organic solvent with said solution to extract sucralose into the organic solvent. The ratio of sodium chloride to dimethylammonium chloride in the aqueous solution is increased prior to or during contact so as to increase the partition coefficient of sucralose into said organic solvent.
摘要:
There is provided a method for the production of sucralose from a feed stream resulting from the chlorination of a sucrose-6-acylate in a reaction vehicle, said feed stream comprising a sucralose-6-acylate, the reaction vehicle, and by-products including high molecular weight coloured material, said method comprising: deacylation of the sucralose-6-acylate by treatment with a base to afford sucralose, and, before or after said deacylation, removal of the reaction vehicle and isolation of the sucralose characterised in that immediately before the removal of the reaction vehicle, the reaction stream is subjected to a precipitation step comprising treatment with a metal or ammonium hydroxide and carbon dioxide to form a precipitate of the corresponding metal or ammonium carbonate in which at least a portion of said high molecular weight coloured material is trapped, followed by separation of said precipitate.
摘要:
A method of inverting sucrose, including (i) determining an initial solids concentration of an aqueous sucrose solution, an initial bed volume of a sucrose inversion resin system, a minimum target inversion percentage, a maximum target inversion percentage, a target maximum hydroxymethylfuran (HMF) concentration, a minimum target pH, or a maximum target pH; (ii) contacting the sucrose inversion resin system with the aqueous sucrose solution under conditions of aqueous solution flow rate and aqueous solution temperature to produce an inverted sucrose solution having an inversion percentage, an HMF concentration, and a pH; (iii) observing an instantaneous inversion percentage, an instantaneous HMF concentration, or an instantaneous pH of the inverted sucrose solution; and, if appropriate; (iv) changing at least one of the aqueous solution flow rate or the aqueous solution temperature to yield a product having a desired inversion percentage, HMF concentration, and/or pH. An apparatus capable of performing the method.