Patents by Inventor Nina Mayra

Nina Mayra 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: 6987183
    Abstract: The present invention is directed to a method comprising a multistep process for recovering one or more monosaccharides from a solution containing at least two monosaccharides selected from the group consisting of rhamnose, arabinose, xylose and mixtures thereof by using chromatographic separation comprising at least one step, where a weak acid cation exchange resin is used for the chromatographic separation.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: January 17, 2006
    Assignee: Danisco Sweeteners Oy
    Inventors: Heikki Heikkila, Juho Jumppanen, Ve{grave over (s)}a Kurula, Vili Ravanko, Tiina Tervala, Nina Mayra
  • Publication number: 20050256307
    Abstract: The present invention pertains to a chromatographic process for separating saccharide monomers from dimers and/or saccharide trimers from dimers. The separation is effected with a cation exchange resin. If saccharide monomers are separated from saccharide dimers the cation exchange resin has a high degree of crosslinking. If the saccharide dimers are separated from saccharide trimers the cation exchange resins has a low degree of crosslinking.
    Type: Application
    Filed: February 4, 2003
    Publication date: November 17, 2005
    Inventors: Vili Ravanko, Nina Mayra, Heikki Heikkila, Hannu Koivikko, Pekka Kekki, Hannu Kalliomaki, Matti Tylli, Johanna Nygren
  • Patent number: 6924371
    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 utilized. 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.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: August 2, 2005
    Assignee: Danisco Sweeteners Oy
    Inventors: Ari Kärki, Heikki Heikkilä, Juho Jumppanen, Jari Tiihonen, Tiina Tervala, Nina Mäyrä, Vili Ravanko, Hannu Paananen, Erkki Paatero
  • Publication number: 20050161401
    Abstract: The present invention relates to a method of separating sugars and sugar alcohols from each other. More particularly the present invention relates to the use of a weakly basic anion exchange resin in a chromatographic separation process. The advantage of the present invention compared with the prior art is that it is especially suitable for separating reducing sugars in acidic conditions as well as for example in weakly acidic conditions. The method using chromatographic separation comprises at least one step where a weakly basic anion exchange resin is used in a chromatographic column or in a part of a column.
    Type: Application
    Filed: March 26, 2003
    Publication date: July 28, 2005
    Inventors: Heikki Heikkila, Paivi Sarmala, Ari Karki, Nina Mayra, Hannu Paananen
  • Patent number: 6770757
    Abstract: The invention relates to a method comprising a multistep process for recovering betaine, erythritol, inositol, sucrose, mannitol, glycerol and amino acids from corresponding starting materials. The invention comprises the use of a weakly acid cation exchange resin in chromatographic column in the multistep process. The starting materials are especially beet molasses, betaine molasses, syrups, thick juices, raw juices, corn steep cane based solutions and glycerol.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: August 3, 2004
    Assignee: Finnfeeds Finland Oy
    Inventors: Hannu Paananen, Jarmo Kuisma, Vili Ravanko, Nina Mayra, Heikki Heikkila, Jari Lewandowski
  • Publication number: 20040006223
    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.
    Type: Application
    Filed: March 31, 2003
    Publication date: January 8, 2004
    Inventors: Ari Karki, Heikki Heikkila, Juho Jumppanen, Jari Tiihonen, Tiina Tervala, Nina Mayra, Vili Ravanko, Hannu Paananen, Erkki Paatero
  • Patent number: 6663717
    Abstract: The invention relates to a method of simultaneous purification and separation of pectin and pectic sugars/oligomers from sugar beet pulp using a multi-step process in an aqueous solution. The method comprises hydrolysis of the sugar beet pulp, solids separation from the sugar beet pulp hydrolysate as well as fractionation and desalting of the aqueous solution of the sugar beet pulp hydrolysate thus obtained into a desalted solution enriched in pectin and a desalted solution enriched in pectic sugars/oligomers. The process may also comprise optional further steps, such as clarification, adsorption, concentration and further chromatographic treatment.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: December 16, 2003
    Assignee: Danisco Sugar Oy
    Inventors: Tapio Juhani Antila, Timo Väkeväinen, Christina Lindqvist, Hannu Koivikko, Matti Tylli, Juho Jumppanen, Pertti Walliander, Nina Mäyrä
  • Publication number: 20020189606
    Abstract: The invention relates to a method of simultaneous purification and separation of pectin and pectic sugars/oligomers from sugar beet pulp using a multi-step process in an aqueous solution. The method comprises hydrolysis of the sugar beet pulp, solids separation from the sugar beet pulp hydrolysate as well as fractionation and desalting of the aqueous solution of the sugar beet pulp hydrolysate thus obtained into a desalted solution enriched in pectin and a desalted solution enriched in pectic sugars/oligomers. The process may also comprise optional further steps, such as clarification, adsorption, concentration and further chromatographic treatment.
    Type: Application
    Filed: March 6, 2002
    Publication date: December 19, 2002
    Applicant: Danisco Sugar Oy
    Inventors: Tapio Juhani Antila, Timo Vakevainen, Christina Lindqvist, Hannu Koivikko, Matti Tylli, Juho Jumppanen, Pertti Walliander, Nina Mayra
  • Publication number: 20020169311
    Abstract: The invention relates to a method comprising a multistep process for recovering betaine, erythritol, inositol, sucrose, mannitol, glycerol and amino acids from corresponding starting materials. The invention comprises the use of a weakly acid cation exchange resin in chromatographic column in the multistep process. The starting materials are especially beet molasses, betaine molasses, syrups, thick juices, raw juices, corn steep cane based solutions and glycerol.
    Type: Application
    Filed: September 28, 2001
    Publication date: November 14, 2002
    Applicant: Finnfeeds Finland Oy
    Inventors: Hannu Paananen, Jarmo Kuisma, Vili Ravanko, Nina Mayra, Heikki Heikkila, Jari Lewandowski
  • Publication number: 20020120135
    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.
    Type: Application
    Filed: September 28, 2001
    Publication date: August 29, 2002
    Applicant: Xyrofin Oy
    Inventors: Heikki Heikkila, Juho Jumppanen, Vesa Kurula, Vili Ravanko, Tiina Tervala, Nina Mayra