Patents Assigned to Danisco Sweeteners Oy
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Publication number: 20050033045Abstract: The invention relates to a process of recovering galactose from a solution derived from plant-based biomass. In the process of the invention, the starting solution is subjected to one or more chromatographic fractionation steps, which may carried out with a strongly basic anion exchange resin and optionally with a strongly acid cation exchange resin, in any desired sequence, followed by recovering at least one fraction enriched in galactose. The galactose fraction thus obtained is further purified by crystallization to obtain crystalline galactose. The invention also relates to non-animal derived crystalline D-galactose.Type: ApplicationFiled: June 24, 2004Publication date: February 10, 2005Applicant: DANISCO SWEETENERS OYInventors: Heikki Heikkila, Katja Hakka, Juho Jumppanen, Pia Saari, Nina Nurmi, Vili Ravanko
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Patent number: 6773512Abstract: The invention relates to a chromatographic separation process of recovering mannose with high purity. The invention is based on the use of a chromatographic separation resin including a resin which is at least partly in a Ba2+ form resin and a resin which is in other than Ba2+ form.Type: GrantFiled: December 30, 2002Date of Patent: August 10, 2004Assignee: Danisco Sweeteners OyInventors: Anu Ennelin, Juho Jumppanen, Vili Ravanko, Juha Nurmi, Miikka Kaira, Heikki Heikkilä
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Patent number: 6756490Abstract: The invention relates to a method of crystallizing maltitol from a maltitol solution by supersaturating the solution in repsect of maltitol and crystallizing the maltitol from the solution. In the process of the invention, the maltitol-containing solution is brought to a supersaturated state, and the solution is subjected to evaporation, until a crystallization mass is obtained which has a crystal yield of 1 to 80% on maltitol, and a dry solids content of over 50%. After bringing the solution to a supersaturated state, the solution is preferably seeded by adding maltitol seed crystals. In one embodiment of the invention, additional feed liquid is added during the crystallization by evaporation.Type: GrantFiled: June 16, 2003Date of Patent: June 29, 2004Assignee: Danisco Sweeteners OyInventors: Juha Nurmi, Olli-Pekka Eroma, Heikki Heikkilä, Johanna Nygren
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Patent number: 6752902Abstract: The invention relates to a method of preparing chemical pulp and xylose by the use of alkaline or neutral cooking and post hydrolysis of the pulp by performing the post hydrolysis directly on the pulp by means of acid treatment. In the method of the invention, the xylan in the pulp is utilized as completely as possible, resulting in a good xylose yield and, simultaneously, acceptable characteristics for the pulp.Type: GrantFiled: January 14, 2002Date of Patent: June 22, 2004Assignee: Danisco Sweeteners OyInventors: Heikki Heikkilä, Mirja Lindroos, Jorma Sundquist, Seppo Kauliomäki, Raimo Rasimus
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Patent number: 6685781Abstract: A method for separating sucrose and a second dissolved component from a sucrose-containing solution, preferably a beet-derived sucrose-containing solution, wherein the solution is subjected to a first fractionation by a continuous or sequential chromatographic simulated moving bed process to yield a sucrose-enriched fraction and a fraction enriched with the second dissolved component. The resulting fraction enriched with the second component is subjected to a second chromatographic fractionation that is a simulated moving bed or batch type process, to yield a second sucrose-enriched fraction and a second fraction enriched with the second dissolved component wherein both fractions have an improved yield or purity.Type: GrantFiled: October 11, 2002Date of Patent: February 3, 2004Assignee: Danisco Sweeteners OyInventors: Göran Hyöky, Hannu Paananen, Kaj-Erik Montén, Heikki Heikkilä, Jarmo Kuisma
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Publication number: 20040014185Abstract: The invention relates to a method for the production of xylitol, the method comprisingType: ApplicationFiled: January 13, 2003Publication date: January 22, 2004Applicant: Danisco Sweeteners OyInventors: Heikki Ojamo, Merja Penttila, Heikki Heikkila, Jaana Uusitalo, Marja Ilmen, Marja-Leena Sarkki, Maija-Leena Vehkomaki
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Publication number: 20030217970Abstract: The present invention relates to a method of fractionating liquid mixtures or solutions, comprising the steps of subjecting a feed in the form of a liquid mixture or solution to a first chromatographic separation, thereby recovering at least a fraction (A) and a fraction (B) both containing a first component or product, subjecting a mixture or solution derived from or comprising said fraction (A) to a second chromatographic separation, thereby recovering at least a fraction (C) rich in said first component or product and subjecting a mixture or solution derived from or comprising said fraction (B) to a third chromatographic separation, thereby recovering at least a fraction (D) also rich in said first component or product, and whereby at least two fractions are recovered from the second and third chromatographic separations.Type: ApplicationFiled: March 14, 2003Publication date: November 27, 2003Applicant: Danisco Sweeteners OyInventors: Heikki Heikkila, Jarmo Kuisma, Jari Lewandowski, Hannu Paananen, Vili Ravanko, Jukka Rinne
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Publication number: 20030125588Abstract: The present invention relates to a process for the production of xylitol. The process utilises ribulose for the preparation of xylitol and involves several different conversion reactions, such as reduction, epimerisation and/or isomerisation. The present invention also relates to the use of ribulose for the preparation of xylitol.Type: ApplicationFiled: September 26, 2002Publication date: July 3, 2003Applicant: Danisco Sweeteners OyInventors: Heikki Heikkila, Heikki Ojamo, Andrei Miasnikov, Vili Ravanko, Matti Tylli
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Publication number: 20030037892Abstract: The invention relates to a method of preparing chemical pulp and xylose by the use of alkaline or neutral cooking and post hydrolysis of the pulp by performing the post hydrolysis directly on the pulp by means of acid treatment. In the method of the invention, the xylan in the pulp is utilized as completely as possible, resulting in a good xylose yield and, simultaneously, acceptable characteristics for the pulp.Type: ApplicationFiled: January 14, 2002Publication date: February 27, 2003Applicant: Danisco Sweeteners OyInventors: Heikki Heikkila, Mirja Lindroos, Jorma Sundquist, Seppo Kauliomaki, Raimo Rasimus
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Publication number: 20030006191Abstract: A method for fractionating a solution into two or more fractions. More particularly the invention relates to a method for fractionating a solution by a chromatographic simulated moving bed (SMB) process in which the dissolved substances present in the feedstock are separated in the partial packed beds, and the formed separation profile is circulated more than once or less than once through the chromatographic separation loop during one cycle.Type: ApplicationFiled: May 9, 2002Publication date: January 9, 2003Applicant: Danisco Sweeteners OyInventors: Heikki Heikkila, Jari Lewandowski, Jarmo Kuisma
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Publication number: 20020158021Abstract: The invention relates to a process for purifying a maltose-containing liquor from a undesired impurities, such as maltotriose. The process of the invention is characterized by nanofiltering said liquor and recovering a purified maltose solution as the permeate.Type: ApplicationFiled: December 28, 2001Publication date: October 31, 2002Applicant: Danisco Sweeteners OyInventors: Heikki Heikkila, Mika Manttari, Mirja Lindroos, Marianne Nystrom
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Publication number: 20020153317Abstract: The invention relates to a process of producing a xylose solution from a biomass hydrolysate by subjecting the biomass hydrolysate to nanofiltration and recovering as the nanofiltration permeate a solution enriched in xylose. The biomass hydrolysate used as starting material is typically a spent liquor obtained from a pulping process.Type: ApplicationFiled: December 28, 2001Publication date: October 24, 2002Applicant: Danisco Sweeteners OyInventors: Heikki Heikkila, Mika Manttari, Mirja Lindroos, Marianne Nystrom