Abstract:
A method for purifying a sucrose material already in a high purity liquid, crystalline or other form of sucrose, such as raw sugar, utilizing chromatography, or utilizing chromatography in connection with other methods of purification.
Abstract:
The present invention relates to a method for utilizing soy molasses as a source for soy sugars which are of high oligosaccharaide content. The invention provides a method for purifying soy molasses comprising the following steps: (i) contacting the soy molasses with alcohol and hydrocarbon solvent mixture, thereby two layers comprising a lower aqueous-alcohol layer and an upper hydrocarbon layer are formed; (ii) collecting the lower aqueous- alcohol layer; (iii) removing coloring, off-flavor and odorous substances; and (iv) removing minerals, thereby a purified soy molasses of more than 90wt.% sugars, on dry matter basis, is obtained.
Abstract:
The invention relates to the use of a weakly acid cation exchange resin for chromatographic separation of carbohydrates. In the invention the hydrophilic/hydrophobic interaction of carbohydrates, sugars and sugar alcohols with the weakly acid cation exchange resin is utilised. The weakly acid cation exchange resin is used for separation of hydrophobic saccharides, such as deoxy, methyl and anhydrosugars and anhydrosugaralcohols from more hydrophilic saccharides.
Abstract:
We disclose a method of inverting sucrose, including (i) determining an initial solids concentration of an aqueous sucrose solution (SoHdS1), an initial bed volume (BV1) of a sucrose inversion resin system, a minimum target inversion percentage (invert%min), a maximum target inversion percentage (invert%max), a target maximum hydroxymethylfuran (HMF) concentration (HMFmdX), a minimum target pH (pHmm), or a maximum target pH (pHmax); (ii) contacting the sucrose inversion resin system with the aqueous sucrose solution under conditions of aqueous solution flow rate in BV,/hr (ratep) and aqueous solution temperature in 0C (temperaturep) to produce an inverted sucrose solution having an inversion percentage (invert%product), an HMF concentration (HMFprocduct), and a pH (pHproduct); (iii) observing an instantaneous inversion percentage (invert%m!>t), an instantaneous HMF concentration (HMFmst), or an instantaneous pH (pHmst) of the inverted sucrose solution; and, if invert%m,t invert%max, HMFm%t > HMFmax, pHmst pHmax; (iv) changing at least one of the aqueous solution flow rate or the aqueous solution temperature such that invert%mm
Abstract:
The invention relates to a process for the recovery of a brown food-grade sugar product from sugar beet solutions, which can be obtained from various beet sugar process streams, such as thin juice, thick ju ice and molasses. The process com prises providing a sugar beet solution, which contains malodorous volatiles as a result of one or more purif ication processes; subjecting said sugar beet solution to electrodialysis to provide an electrodialyzed liquid, wherefrom malodorous volatiles are at least partly removed; and recovering from said electrodialyzed liquid a product selected from liquid and solid brown sugar products of food-grade and combinations thereof. The invention also relates to food-grade beet sugar products derived from a sugar beet solution. These products are suitable for substituting the corresponding cane sugar derived products. In a further aspect the invention relates to the use of electrodialysis for removing malodorous volatile components from a sugar beet solution.
Abstract:
An economical process is disclosed for the direct production of white sugar from clarified juice. Juice from a cane sugar mill, or sugar beet juice, is first contacted with hydrogen peroxide, before passing through granular activated carbon. The juice is then passed through cationic and anionic resins to remove inorganic compounds, colorants, and other impurities. Then the juice may be concentrated and sugar crystallized. White sugar is produced directly, without the need for an intermediate raw sugar crystallization.
Abstract:
A system (10, 110) and process for refining raw sugar, comprising a melting unit (16, 116) configured to receive the raw sugar and an eluent to produce a melt liquor, a decolorization unit (24, 124) configured to receive the melt liquor and to produce a fine liquor, a crystallization unit (36, 136) configured to fractionate high-purity crystalline sucrose from the fine liquor and to provide a run-off syrup, a softening unit (46, 146) configured to receive the run-off syrup to produce a softened syrup, at least one separation unit (48, 148) configured to receive the softened syrup to produce a low-invert sucrose product, and a recycle line (52, 152) configured to relay the low-invert sucrose product from the at least one separation unit (48, 148) to the melting unit (16, 116).
Abstract:
The invention relates to a multi-profile chromatographic sequential SMB process of separating and recovering betaine and sucrose from concentrated raw juice or thick juice. In the process of the invention, the betaine subprofile and the residual subprofile of successive separation profiles are overlapping. A sucrose fraction and a betaine fraction containing also residual components are recovered. Betaine is further separated from the betaine fraction for example by chromatographic processes.
Abstract:
The present invention relates to a method for recovering a monosaccharide selected from the group consisting of rhamnose, arabinose, xylose and mixtures thereof from a solution containing the same by a multistep process using chromatographic separation comprising at least one step, where a weakly acid cation exchange resin is used for the chromatographic separation.
Abstract:
A "block" of betaine is displaced from the circulation loop of an ion exclusion system configured as an SMB without disturbing the normal operation of the system. In practice, a betaine-concentrated fraction is withdrawn (17) from the circulating loop of the SMB while an equal volume of water is introduced (15) to the loop. The circulation loop thereby continues without disruption.