Patents by Inventor Stefan Jennewein

Stefan Jennewein 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).

  • Publication number: 20210171992
    Abstract: Disclosed is a method for the manufacture of a spray-dried powder consisting essentially of 3-fucosyllactose, the spray-dried powder, its use for the manufacture of nutritional compositions, and nutritional compositions containing the spray-dried powder.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 10, 2021
    Inventor: Stefan JENNEWEIN
  • Publication number: 20210161192
    Abstract: Disclosed is a method for the manufacture of a spray-dried powder consisting essentially of LNT and/or LNnT, the spray-dried powder, its use for the manufacture of nutritional compositions, and nutritional compositions containing the spray-dried powder.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 3, 2021
    Inventor: Stefan JENNEWEIN
  • Publication number: 20210087599
    Abstract: Disclosed are methods, genetically engineered cells, sialyltransferases and nucleic acid molecules encoding said sialyltransferases for producing sialylated oligosaccharides as well as the use of said sialylated oligosaccharides for providing nutritional compositions.
    Type: Application
    Filed: July 25, 2018
    Publication date: March 25, 2021
    Inventors: Stefan JENNEWEIN, Dirk WARTENBERG
  • Publication number: 20210061836
    Abstract: The present application discloses a simple process for the purification of neutral human milk oligosaccharides (HMOs) produced by microbial fermentation. The process uses a combination of cationic ion exchanger treatment, an anionic ion exchanger treatment, and a nanofiltration and/or electrodialysis step, which allows efficient purification of large quantities of neutral HMOs at high purity. Contrary to the purification currently used in fermentative production of neutral HMOs, the presented process allows the provision of HMOs without the need of a chromatographic separation. The so purified HMOs may be obtained in solid form by spray drying, as crystalline material or as sterile filtered concentrate. The provided HMOs are free of proteins and recombinant material originating from the used recombinant microbial strains and thus very well-suited for use in food, medical food and feed (e.g. pet food) applications.
    Type: Application
    Filed: November 13, 2020
    Publication date: March 4, 2021
    Inventor: Stefan JENNEWEIN
  • Patent number: 10882880
    Abstract: The present application discloses a simple process for the purification of neutral human milk oligosaccharides (HMOs) produced by microbial fermentation. The process uses a combination of cationic ion exchanger treatment, an anionic ion exchanger treatment, and a nanofiltration and/or electrodialysis step, which allows efficient purification of large quantities of neutral HMOs at high purity. Contrary to the purification currently used in fermentative production of neutral HMOs, the presented process allows the provision of HMOs without the need of a chromatographic separation. The so purified HMOs may be obtained in solid form by spray drying, as crystalline material or as sterile filtered concentrate. The provided HMOs are free of proteins and recombinant material originating from the used recombinant microbial strains and thus very well-suited for use in food, medical food and feed (e.g. pet food) applications.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: January 5, 2021
    Assignee: Jennewein Biotechnologie GmbH
    Inventor: Stefan Jennewein
  • Publication number: 20200383367
    Abstract: Disclosed are spray-dried powders containing a mixture of structurally distinct human milk oligosaccharides, methods for the production of said spray-dried powder, its use for the manufacture of nutritional compositions, and nutritional compositions containing said spray-dried powder.
    Type: Application
    Filed: December 7, 2018
    Publication date: December 10, 2020
    Inventor: Stefan JENNEWEIN
  • Publication number: 20200384041
    Abstract: Disclosed is a method for the manufacture of a spray-dried powder consisting essentially of 3?-SL and/or 6?-SL, the spray-dried powder, its use for the manufacture of nutritional compositions, and nutritional compositions containing the spray-dried powder.
    Type: Application
    Filed: December 7, 2018
    Publication date: December 10, 2020
    Inventor: Stefan JENNEWEIN
  • Publication number: 20200354760
    Abstract: The present invention concerns an efficient way to isolate L-fucose from a fermentation broth. The L-fucose contained in the fermentation broth is produced by microbial fermentation (bacterial or yeasts). The inventive process comprises a step of removing biomass from the fermentation broth, a step of subjecting the resulting solution to at least one of a cationic ion exchanger treatment and an anionic ion exchanger treatment and a step of removing salts after the ion exchanger treatment. The process can provide L-fucose in powder form, in granulated form as well as in form of L-fucose crystals.
    Type: Application
    Filed: November 15, 2018
    Publication date: November 12, 2020
    Inventors: Markus HELFRICH, Stefan JENNEWEIN
  • Publication number: 20200332325
    Abstract: The present invention describes an efficient way to isolate a sialic acid from a fermentation broth. The sialic acid contained in the fermentation broth is produced by bacterial fermentation. The inventive process comprises a step of removing biomass from the fermentation broth, a step of subjecting the resulting solution to at least one of a cationic ion exchanger treatment and an anionic ion exchanger treatment and a step of removing salts after the ion exchanger treatment. The process can provide the sialic acid in spray-dried form as well as in form of sialic acid crystals.
    Type: Application
    Filed: October 31, 2018
    Publication date: October 22, 2020
    Inventors: Stefan JENNEWEIN, Markus HELFRICH
  • Publication number: 20200332331
    Abstract: Disclosed are non-naturally-occurring microorganisms for the production of N-acetylneuraminic acid, a method for the production of N-acetylneuraminic acid by fermentation of the non-naturally-occurring microorganisms, and nutritional compositions containing N-acetylneuraminic acid which has been produced by fermentation of the non-naturally-occurring microorganisms.
    Type: Application
    Filed: October 17, 2018
    Publication date: October 22, 2020
    Inventors: Stefan JENNEWEIN, Dirk WARTENBERG
  • Publication number: 20200308211
    Abstract: Disclosed is a method for purifying sialylated oligosaccharides from a fermentation broth, cell-lysate or biocatalytic reaction mixture for obtaining high amounts of desired sialylated oligosaccharides in high purity. The method is particular suitable for the large-scale economic purification of sialylated human milk oligosaccharides (such as 3?-sialyllactose, 6?-sialyllactose or sialylated lacto-N-tetraose derivatives) from microbial fermentation, using recombinant bacterial cells or yeast cells. The obtained material is of high purity and can be used for food or medical application such like medical nutrition products, infant formula, dietary supplements, general nutrition products (e.g. dairy drinks).
    Type: Application
    Filed: August 29, 2018
    Publication date: October 1, 2020
    Inventors: Stefan JENNEWEIN, Markus HELFRICH, Benedikt ENGELS
  • Publication number: 20200231618
    Abstract: The present application discloses a simple process for the purification of neutral human milk oligosaccharides (HMOs) produced by microbial fermentation. The process uses a combination of cationic ion exchanger treatment, an anionic ion exchanger treatment, and a nanofiltration and/or electrodialysis step, which allows efficient purification of large quantities of neutral HMOs at high purity. Contrary to the purification currently used in fermentative production of neutral HMOs, the presented process allows the provision of HMOs without the need of a chromatographic separation. The so purified HMOs may be obtained in solid form by spray drying, as crystalline material or as sterile filtered concentrate. The provided HMOs are free of proteins and recombinant material originating from the used recombinant microbial strains and thus very well-suited for use in food, medical food and feed (e.g. pet food) applications.
    Type: Application
    Filed: April 7, 2020
    Publication date: July 23, 2020
    Inventor: Stefan JENNEWEIN
  • Publication number: 20200181665
    Abstract: Disclosed are novel fucosyltransferases being capable of transferring a fucose residue from a donor substrate to a lactotetraose, methods for producing fucosylated oligosaccharides utilizing said fucosyltransferases, and the use of the thus produced fucosylated oligosaccharides for manufacturing nutritional compositions.
    Type: Application
    Filed: July 6, 2018
    Publication date: June 11, 2020
    Inventors: Stefan JENNEWEIN, Katja PARSCHAT
  • Publication number: 20200032308
    Abstract: The present invention relates to a process for producing a monosaccharide, e.g. L-fucose, in free form using a microbial fermentation process. The used microorganism exhibits hydrolase activity on nucleotide-activated sugars and releases the monosaccharide in an unmodified free form. The free monosaccharide is retrieved from the supernatant of the cultivated microorganism.
    Type: Application
    Filed: July 24, 2019
    Publication date: January 30, 2020
    Inventors: Stefan Jennewein, Katja Parschat
  • Publication number: 20190382737
    Abstract: A method for making a genetically modified cell having the ability to produce fucosylated compounds comprising the steps of: transforming the cell to express a fucose kinase, transforming the cell to express a fucose-1-phosphate guanylyltransferase, transforming the cell to express a fucosyltransferase.
    Type: Application
    Filed: June 13, 2019
    Publication date: December 19, 2019
    Inventors: Eric Hüfner, Julia Parkot, Stefan Jennewein
  • Publication number: 20190309336
    Abstract: The present invention relates to a method for producing fucosylated oligosaccharides by using a recombinant prokaryotic host cell that is cultivated on a gluconeogenic substrate, as well as to the host cell and its use. The host cell is genetically modified in that the activity of a fructose-6-phosphate converting enzyme is abolished or lowered, and the transport of the produced fucosylated oligosaccharide through the cell membrane is facilitated by an exogenous transport protein.
    Type: Application
    Filed: October 24, 2017
    Publication date: October 10, 2019
    Applicant: JENNEWEIN BIOTECHNOLOGIE GMBH
    Inventors: Stefan JENNEWEIN, Dirk WARTENBERG, Katja PARSCHAT
  • Patent number: 10435427
    Abstract: The present application discloses a process for the purification of a neutral human milk oligosaccharide (neutral HMO). The process uses simulated moving bed (SMB) chromatography which allows the continuous purification of large quantities of HMOs with high purity. Contrary to chemical synthesis routes of neutral HMOs, and their subsequent purification, the presented process allows the provision of HMOs free of noxious chemicals, such as e.g. trace amounts of heavy metals or organic solvents. The individual neutral HMO product may be obtained in solid form by spray drying or as a concentrated syrup. The provided neutral HMO is very well-suited for use in food applications.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: October 8, 2019
    Assignee: Jennewein Biotechnologie GmbH
    Inventors: Stefan Jennewein, Markus Helfrich
  • Publication number: 20190292211
    Abstract: The present application discloses a process for the purification of a neutral human milk oligosaccharide (neutral HMO). The process uses simulated moving bed (SMB) chromatography which allows the continuous purification of large quantities of HMOs with high purity. Contrary to chemical synthesis routes of neutral HMOs, and their subsequent purification, the presented process allows the provision of HMOs free of noxious chemicals, such as e.g. trace amounts of heavy metals or organic solvents. The individual neutral HMO product may be obtained in solid form by spray drying or as a concentrated syrup. The provided neutral HMO is very well-suited for use in food applications.
    Type: Application
    Filed: June 13, 2019
    Publication date: September 26, 2019
    Inventors: Stefan JENNEWEIN, Markus HELFRICH
  • Patent number: 10377787
    Abstract: The present application discloses a simple process for the purification of neutral human milk oligosaccharides (HMOs) produced by microbial fermentation. The process uses a combination of a cationic ion exchanger treatment, an anionic ion exchanger treatment, and a nanofiltration and/or electrodialysis step, which allows efficient purification of large quantities of neutral HMOs at high purity. Contrary to the purification currently used in fermentative production of neutral HMOs, the presented process allows the provision of HMOs without the need of a chromatographic separation. The so purified HMOs may be obtained in solid form by spray drying, as crystalline material or as sterile filtered concentrate. The provided HMOs are free of proteins and recombinant material originating from the used recombinant microbial strains and thus very well-suited for use in food, medical food and feed (e.g. pet food) applications.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: August 13, 2019
    Assignee: JENNEWEIN BIOTECHNOLOGIE GMBH
    Inventor: Stefan Jennewein
  • Publication number: 20190177352
    Abstract: The present application discloses a simple process for the purification of neutral human milk oligosaccharides (HMOs) produced by microbial fermentation. The process uses a combination of cationic ion exchanger treatment, an anionic ion exchanger treatment, and a nanofiltration and/or electrodialysis step, which allows efficient purification of large quantities of neutral HMOs at high purity. Contrary to the purification currently used in fermentative production of neutral HMOs, the presented process allows the provision of HMOs without the need of a chromatographic separation. The so purified HMOs may be obtained in solid form by spray drying, as crystalline material or as sterile filtered concentrate. The provided HMOs are free of proteins and recombinant material originating from the used recombinant microbial strains and thus very well-suited for use in food, medical food and feed (e.g. pet food) applications.
    Type: Application
    Filed: February 15, 2019
    Publication date: June 13, 2019
    Inventor: Stefan JENNEWEIN