Patents by Inventor Marja Leena Sarkki

Marja Leena Sarkki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8192775
    Abstract: The present invention relates to microcrystallized polyol comprising at least two polyols, wherein said polyols are selected from the group consisting of maltitol, xylitol and lactitol and wherein said composition contains at least 35% by weight of each of at least two of said polyols microcrystallized together into a solid microcrystalline product. The present invention also relates to a process for the microcrystallization of polyols into a polyol composition. The microcrystallized polyol composition can be used in confectionery, foodstuffs, oral hygiene products and pharmaceuticals and in dietetic products.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: June 5, 2012
    Assignee: Danisco Sweeteners Oy
    Inventors: Olli-Pekka Eroma, Johanna Nygren, Heikki Heikkila, Per Bo Sorensen, Marja-Leena Sarkki, Ian Fairs, Hakan Gros
  • Publication number: 20110123692
    Abstract: The present invention relates to microcrystallized polyol comprising at least two polyols, wherein said polyols are selected from the group consisting of maltitol, xylitol and lactitol and wherein said composition contains at least 35% by weight of each of at least two of said polyols microcrystallized together into a solid microcrystalline product. The present invention also relates to a process for the microcrystallization of polyols into a polyol composition. The microcrystallized polyol composition can be used in confectionery, foodstuffs, oral hygiene products and pharmaceuticals and in dietetic products.
    Type: Application
    Filed: October 28, 2010
    Publication date: May 26, 2011
    Applicant: DANISCO SWEETENERS OY
    Inventors: Olli-Pekka Eroma, Johanna Nygren, Heikki Heikkila, Per Bo Sorensen, Marja-Leena Sarkki, Ian Fairs, Hakan Gros
  • Patent number: 7838055
    Abstract: The present invention relates to a microcrystallized polyol comprising at least two polyols, wherein said polyols are selected from the group consisting of maltitol, xylitol and lactitol and wherein said composition contains at least 25% by weight of each of at least two of said polyols microcrystallized together into a solid microcrystalline product. The present invention also relates to a process for the microcrystallization of polyols into a polyol composition. The microcrystallized polyol composition can be used in confectionery, foodstuffs, oral hygiene products and pharmaceuticals and in dietetic products.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: November 23, 2010
    Assignee: Danisco Sweeteners Oy
    Inventors: Olli-Pekka Eroma, Johanna Nygren, Heikki Heikkila, Per Bo Sorensen, Marja-Leena Sarkki, Ian Fairs, Hakan Gros
  • Patent number: 7625728
    Abstract: Effective processes are provided for the production of xylitol and ethanol and other products from solutions derived from lignocellulose-containing material in biomass. The solutions can be hydrolyzed or partially hydrolyzed before being fermented with microbes. The fermented solution can be distilled and can be subsequently separated, such as, by chromatographic separation, membrane separation, etc. The recovered xylitol solution can be crystallized to provide pure xylitol crystals.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: December 1, 2009
    Assignee: Danisco Sweeteners Oy
    Inventors: Olli-Pekka Eroma, Heikki Heikkila, Heikki Ojamo, Päivi Sarmala, Göran Hyöky, Leena Rahkila, Marja-Leena Sarkki, Tapio Viljava
  • Patent number: 7482144
    Abstract: The invention relates to a method for the production of xylitol, the method comprising (a1) providing (i) a microorganism having xylanolytic activity, and (ii) a microorganism capable of converting a pentose sugar to xylitol; or (a2) providing a microorganism having xylanolytic activity and being capable of converting a pentose sugar to xylitol, (b) culturing the microorganism of step (a1) (i) or the microorganism of step (a2) in a medium comprising polymer or oligomer materials containing pentose sugars in conditions sufficient for enabling hydrolysis of said polymers or oligomers by the microorganism; (c) producing xylitol in the microorganism of step (a1) (ii) or in the microorganism of step (a2) by bioconversion of the hydrolysis products obtained in step (b), and (d) recovering said xylitol produced. The invention also relates to a microorganism, which has xylanolytic activity and has been genetically modified (i) to enhance its xylanolytic activity, and (ii) to reduce its xylitol metabolism.
    Type: Grant
    Filed: January 13, 2003
    Date of Patent: January 27, 2009
    Assignee: Danisco Sweeteners Oy
    Inventors: Heikki Ojamo, Merja Penttila, Heikki Heikkila, Jaana Uusitalo, Marja Ilmen, Marja-Leena Sarkki, Maija-Leena Vehkomaki
  • Publication number: 20060246563
    Abstract: Effective processes are provided for the production of xylitol and ethanol and other products from solutions derived from lignocellulose-containing material in biomass. The solutions can be hydrolyzed or partially hydrolyzed before being fermented with microbes. The fermented solution can be distilled and can be subsequently separated, such as, by chromatographic separation, membrane separation, etc. The recovered xylitol solution can be crystallized to provide pure xylitol crystals.
    Type: Application
    Filed: June 30, 2006
    Publication date: November 2, 2006
    Inventors: Olli-Pekka Eroma, Heikki Heikkila, Heikki Ojamo, Paivi Sarmala, Goran Hyoky, Leena Rahkila, Marja-Leena Sarkki, Tapio Viljava
  • Patent number: 7109005
    Abstract: Effective processes are provided for the production of xylitol and ethanol and other products from solutions derived from lignocellulose-containing material in biomass. The solutions can be hydrolyzed or partially hydrolyzed before being fermented with microbes. The fermented solution can be distilled and can be subsequently separated, such as, by chromatographic separation, membrane separation, etc. The recovered xylitol solution can be crystallized to provide pure xylitol crystals.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: September 19, 2006
    Assignee: Danisco Sweeteners Oy
    Inventors: Olli-Pekka Eroma, Heikki Heikkila, Heikki Ojamo, Päivi Sarmala, Göran Hyöky, Leena Rahkila, Marja-Leena Sarkki, Tapio Viljava
  • Publication number: 20060025584
    Abstract: The present invention relates to a microcrystallized polyol comprising at least two polyols, wherein said polyols are selected from the group consisting of maltitol, xylitol and lactitol and wherein said composition contains at least 25% by weight of each of at least two of said polyols microcrystallized together into a solid microcrystalline product. The present invention also relates to a process for the microcrystallization of polyols into a polyol composition. The microcrystallized polyol composition can be used in confectionery, foodstuffs, oral hygiene products and pharmaceuticals and in dietetic products.
    Type: Application
    Filed: July 2, 2003
    Publication date: February 2, 2006
    Inventors: Olli-Pekka Eroma, Johanna Nygren, Heikki Heikkila, Per Bo Sorensen, Marja-Leena Sarkki, Ian Fairs, Hakan Gros
  • Patent number: 6846657
    Abstract: The invention relates to a process for the simultaneous production of xylitol and ethanol from a hydrolyzed lignocellulose-containing material starting. The starting material is fermented with a yeast strain, the ethanol produced is recovered, a chromatographic separation is carried out on the remaining xylitol solution, and pure xylitol is crystallized.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: January 25, 2005
    Assignee: Xyrofin Oy
    Inventors: Heikki Heikkilä, Göran Hyöky, Leena Rahkila, Marja Leena Sarkki, Tapio Viljava
  • Patent number: 6764706
    Abstract: The invention relates to a novel process for the crystallization of xylitol by contacting a xylitol solution with particulate xylitol suspended in a gas, drying the material to produce a multitude of microrystals and conditioning the material into an agglomerated product. The invention also relates to a particulate crystalline xylitol product having novel properties, to the use thereof in confectionery, foodstuff pharmaceuticals and oral hygiene products, and to special products comprising the same.
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: July 20, 2004
    Assignee: Xyrofin OY
    Inventors: Heikki Heikkilä, Johanna Nygren, Marja-Leena Sarkki, H{dot over (a)}kan Gros, Olli-Pekka Eroma, Julita Pearson, Tammy Pepper
  • Publication number: 20040014185
    Abstract: The invention relates to a method for the production of xylitol, the method comprising
    Type: Application
    Filed: January 13, 2003
    Publication date: January 22, 2004
    Applicant: Danisco Sweeteners Oy
    Inventors: Heikki Ojamo, Merja Penttila, Heikki Heikkila, Jaana Uusitalo, Marja Ilmen, Marja-Leena Sarkki, Maija-Leena Vehkomaki
  • Publication number: 20030235881
    Abstract: The invention relates to a process for the simultaneous production of xylitol and ethanol from a hydrolyzed lignocellulose-containing material, wherein the starting material is fermented with a yeast strain, the ethanol produced is recovered, a chromatographic separation is carried out on the remaining xylitol solution, and pure xylitol is crystallized.
    Type: Application
    Filed: September 12, 1997
    Publication date: December 25, 2003
    Inventors: HEIKKI HEIKKILA, GORAN HYOKY, LEENA RAHKILA, MARJA-LEENA SARKKI, TAPIO VILJAVA
  • Patent number: 6512110
    Abstract: The invention relates to a process for the production of xylose from a paper-grade hardwood pulp comprising the steps of extracting xylan contained in said pulp into a liquid phase, subjecting the xylan contained in the obtained liquid phase to conditions sufficient to hydrolyze xylan to xylose, and recovering the xylose, wherein the extracting step includes at least one treatment of an aqueous suspension of said pulp or an alkali-soluble material thereof with a xylanase enzyme.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: January 28, 2003
    Assignee: Xyrofin Oy
    Inventors: Heikki Heikkila, Marja-Leena Sarkki, Vili Ravanko, Mirja Lindroos
  • Publication number: 20020164731
    Abstract: Effective processes are provided for the production of xylitol and ethanol and other products from solutions derived from lignocellulose-containing material in biomass. The solutions can be hydrolyzed or partially hydrolyzed before being fermented with microbes. The fermented solution can be distilled and can be subsequently separated, such as, by chromatographic separation, membrane separation, etc. The recovered xylitol solution can be crystallized to provide pure xylitol crystals.
    Type: Application
    Filed: October 25, 2001
    Publication date: November 7, 2002
    Inventors: Olli-Pekka Eroma, Heikki Heikkila, Heikki Ojamo, Paivi Sarmala, Goran Hyoky, Leena Rahkila, Marja-Leena Sarkki, Tapio Viljava
  • Patent number: 6395893
    Abstract: The present invention relates to a novel process for the crystallization of lactitol, to a particulate crystalline lactitol product having novel properties, to the use thereof as in foodstuffs, pharmaceuticals and oral hygiene products, as well as to special lactitol sweeteners. The process comprises: contacting a liquid containing dissolved lactitol with gas suspended fine solid particles containing microcrystalline lactitol; causing substantial removal of the solvent component of said liquid and allowing the resulting lactitol material to form an essentially solid composition of matter comprising a multitude of microcrystals of lactitol; and causing said lactitol composition to be conditioned during a further step to provide a product consisting essentially throughtout its entire structure of a multitude of microcrystals of lactitol agglomerated together in a random manner.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: May 28, 2002
    Assignee: Xyrofin Oy
    Inventors: Heikki Heikkilä, Johanna Nygren, Marja-Leena Sarkki, Håkan Gros, Olli-Pekka Eroma, Julita Pearson, Tammy Pepper
  • Patent number: 6146856
    Abstract: The present invention relates to a process for the simultaneous production of converted and non-converted sugar and/or non-sugar products. The process is especially adapted to the simultaneous production of isomaltulose and/or trehalulose, and betaine or invert sugar from plant derived juices. Sucrose in said juices are enzymatically converted into isomaltulose and trehalulose and the target products are separately recovered from the resulting solution. The isomaltulose may be further converted into isomalt.
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: November 14, 2000
    Assignee: Xyrofin Oy
    Inventors: Heikki Heikkila, Marja-Leena Sarkki, Mirja Lindroos, Paivi Ojala, Vili Ravanko, Matti Tylli
  • Patent number: 5939294
    Abstract: Isomaltulose-forming microorganisms are immobilized on a carrier that is a weakly basic anion exchange substance in the form of a substantially non-compressible porous particulate solid material, and are used for isomerization of sucrose to isomaltulose. A preferred carrier contains microfibers or microparticles of diethylaminoethyl cellulose adherently bound by agglomeration with polystyrene. The isomerization may be a continuous conversion in one or more columns packed with the carrier. Isomaltulose may be hydrogenated to form isomalt for use in sweetening. Microorganisms can be immobilized on the carrier by feeding microorganisms to a column containing the carrier. After microorganism immobilization, the carrier may be treated with a crosslinking and/or flocculating compound. Regeneration of the carrier is carried out by removing microorganisms, washing and reloading with fresh microorganisms.
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: August 17, 1999
    Assignee: Xyrofin Oy
    Inventors: Marja-Leena Sarkki, Heikki Heikkila, Tapio Viljava
  • Patent number: 5932452
    Abstract: The invention relates to a process for the hydrolysis of a hemicellulose substrate containing xylo-oligomers with an immobilized enzyme by adjusting the pH of an aqueous solution containing hemicellulose oligosaccharides and optionally ionic components to a value within a weakly acidic range, and contacting the solution with a hemicellulolytic enzyme or mixture of enzymes immobilized on a regenerable weak cation exchange carrier without fixing additives, and recovering xylose from the solution. The invention also concerns an enzyme preparation to be used in the process, comprising a weak cation exchange carrier and a hemicellulolytic enzyme or mixture of enzymes immobilized on said carrier.
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: August 3, 1999
    Assignee: Xyrofin Oy
    Inventors: Annikka Mustranta, Kaisa Poutanen, Heikki Heikkila, Marja-Leena Sarkki
  • Patent number: 4448790
    Abstract: The present invention is concerned with a process by means of which the fraction of grain flour that remains after separation of the main part of the starch and of the gluten-type protein, when the grain contains gluten, is divided into two products of food quality. One of these products consists mainly of the albumin-globulin-type, water soluble proteins and the other one, a syrupy product, consists mainly of sugars obtained as products of hydrolysis of small-particle starch of grain. The homogenous slurry obtained after separation of ordinary grain starch and gluten from the grain flour by known methods is heated at a temperature of at least 120.degree. C., treated at a temperature of at the most 90.degree. C. simultaneously by means of alpha-amylase and beta-glucanase, the produced protein precipitate is separated from the sludge, washed, and dried. The remaining clear fraction is sugared by means of amyloglucosidase of fungalamylase.
    Type: Grant
    Filed: January 19, 1982
    Date of Patent: May 15, 1984
    Assignee: Oy Vehna AB
    Inventors: Marja-Leena Sarkki, Martti Soderstrom, Hannu Maunula, Annika Korhonen