Patents by Inventor Linqiu Cao

Linqiu Cao 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: 20240138457
    Abstract: Aqueous oligosaccharide composition having a solids content of 50-80 wt %, 45-100 wt % of said solids consisting of (i) one or more oligosaccharides selected from galacto-oligosaccharides (GOS), fructo-oligosaccharides (FOS), polydextrose (PDX), and combinations thereof, and (ii) one or more human milk oligosaccharides (HMO), wherein the weight ratio of (i) oligosaccharides selected from galacto-oligosaccharides (GOS), fructo-oligosaccharides (FOS), polydextrose (PDX), and combinations thereof to (ii) human milk oligosaccharides is in the range 0.25-600.
    Type: Application
    Filed: March 8, 2022
    Publication date: May 2, 2024
    Inventors: Linqiu Cao, Harmen Willem Bouma, Henderikus Menno Torringa
  • Publication number: 20230313250
    Abstract: The present invention provides a new type of galacto-oligosaccharide, having a mannose residue instead of a glucose residue at the reducing end. The invention also relates to compositions comprising this galacto-oligosaccharide, its preparation and use in nutritional compositions.
    Type: Application
    Filed: March 3, 2021
    Publication date: October 5, 2023
    Inventors: Linqiu CAO, Johannes Adrianus Henricus Petrus BASTIAANS
  • Publication number: 20230026328
    Abstract: Process for the preparation of a galacto-oligosaccharide preparation, which process comprises the step of contacting a lactulose-containing feed with a beta-galactosidase derived from Papiliotrema terrestris. The resulting galacto-oligosaccharide is acceptable to subjects suffering from GOS-related allergy and subjects having lactose intolerance.
    Type: Application
    Filed: December 2, 2020
    Publication date: January 26, 2023
    Inventor: Linqiu CAO
  • Patent number: 11535641
    Abstract: The invention relates to the field of nutritional ingredients, in particular to methods for producing hypoallergenic galacto-oligosaccharides (GOS) and the use thereof in food and drink items. Provided is the use of a beta-galactosidase (EC 3.2.1.23) derived from Cryptococcus terrestris (recently renamed Papiliotrema terrestris) in the production of a hypoallergenic GOS preparation having a reduced capacity to induce an allergic response in a subject.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: December 27, 2022
    Assignee: FrieslandCampina Nederland B.V.
    Inventors: Dirk Andries Groeneveld, Bas Johan Henri Kuipers, Bernardina Johanna Martina Delsing, Linqiu Cao
  • Publication number: 20220087298
    Abstract: The invention relates to the field of nutritional ingredients, in particular to economically attractive methods for producing hypoallergenic galactooligosaccharides (HA-GOS) and the use thereof in food and feed items. Provided is a method for the production of a HA-GOS preparation, comprising contacting a lactose feed with a beta-galactosidase (EC 3.2.1.23) comprising an amino acid sequence according to any of SEQ ID NO: 1, 2, 3 or 4, or an amino acid sequence that is at least 80% identical thereto, wherein the lactose feed is a cheese whey permeate (CWP) or a CWP that is enriched in sialyllactose (SL-CWP).
    Type: Application
    Filed: November 27, 2019
    Publication date: March 24, 2022
    Inventors: Mirre VISKAAL-VAN DONGEN, Linqiu CAO
  • Publication number: 20210330687
    Abstract: The invention relates to the field of hypoallergenic oligosaccharides for use in nutritional compositions, in particular to oligosaccharides having prebiotic properties. Provided is a hypoallergenic oligosaccharide composition comprising galacto-oligosaccharides (GOS), wherein (i) the galacto-oligosaccharides (GOS) content is at least 40% by weight of the total dry matter of the composition; (ii) the allolactose content is at least 10% by weight of the total dry matter of the composition; (iii) the 6?-GL content is at least 30% by weight of the total GOS in the composition; and (iv) at least 0.5% by weight of the total GOS has a polymerization degree (DP) of six or more. The GOS composition does not trigger GOS-allergy as assessed in a basophil activation test (BAT).
    Type: Application
    Filed: September 4, 2019
    Publication date: October 28, 2021
    Inventor: Linqiu Cao
  • Publication number: 20200115407
    Abstract: The invention relates to the field of nutritional ingredients, in particular to methods for producing hypoallergenic galacto-oligosaccharides (GOS) and the use thereof in food and drink items. Provided is the use of a beta-galactosidase (EC 3.2.1.23) derived from Cryptococcus terrestris (recently renamed Papiliotrema terrestris) in the production of a hypoallergenic GOS preparation having a reduced capacity to induce an allergic response in a subject.
    Type: Application
    Filed: December 27, 2019
    Publication date: April 16, 2020
    Inventors: Dirk Andries GROENEVELD, Bas Johan Henri KUIPERS, Bernardina Johanna Martina DELSING, Linqiu CAO
  • Patent number: 10590448
    Abstract: The invention relates to the enzymatic preparation of galacto-oligosaccharides (GOS). Provided is a method for preparing GOS from lactose, comprising (i) contacting a lactose feed with immobilized beta-galactosidase (EC 3.2.1.23) and (ii) allowing for GOS synthesis, wherein said lactose feed is an aqueous slurry of crystalline lactose.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: March 17, 2020
    Assignee: Friesland Campina Nederland B.V.
    Inventors: Frédéric Benjamins, Linqiu Cao, Antonius Augustinus Broekhuis
  • Publication number: 20160194675
    Abstract: The invention relates to the enzymatic preparation of galacto-oligosaccharides (GOS). Provided is a method for preparing GOS from lactose, comprising (i) contacting a lactose feed with immobilized beta-galactosidase (EC 3.2.1.23) and (ii) allowing for GOS synthesis, wherein said lactose feed is an aqueous slurry of crystalline lactose.
    Type: Application
    Filed: September 4, 2014
    Publication date: July 7, 2016
    Inventors: Frédéric Benjamins, Linqiu Cao, Antonius Augustinus Broekhuis
  • Publication number: 20160002288
    Abstract: The invention pertains to process for manufacturing whey protein concentrate (WPC) from whey, said process involving (a) providing acidified whey; (b) increasing the pH of said acidified whey using one or more carbonate salt(s), preceded and/or followed by ultrafiltration, and (c) subjecting the ultrafiltered carbonate-containing whey to spray drying. A WPC is provided having improved functional properties, particularly increased gel strength and reduced salt sensitivity (i.e. meaning that the functional properties of the WPC are affected by salt to a lesser extent).
    Type: Application
    Filed: July 2, 2015
    Publication date: January 7, 2016
    Applicant: FRIESLANDCAMPINA NEDERLAND HOLDING B.V.
    Inventors: Suzanne Godelieve THIESSEN-BOLDER, Linqiu CAO, Iliana Hidalgo TORRES
  • Patent number: 8999923
    Abstract: The invention pertains to an aqueous composition containing lactoferrin, 35-70 wt % carbohydrate and/or polyol stabilizers, based on the total weight of the aqueous composition, said composition exhibiting a pH higher than 2, lower than 5. At these 5 conditions, the aqueous composition and lactoferrin contained therein may be subjected to a heat treatment without significantly affecting the physiological activity of the lactoferrin. The invention thus particularly pertains to the above aqueous composition, being heat-treated, thus containing heat-stabilized lactoferrin.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: April 7, 2015
    Assignee: Campina Nederland Holding B.V.
    Inventors: Linqiu Cao, Hans Maas
  • Patent number: 8865778
    Abstract: A controlled release excipient composition suitable in formulation of a slow or extended release tablet, contains a synergistic mixture of substantially uncross-linked carboxymethyl starch, or sodium starch glycolate (SSG), and a hydrophilic, non-ionic cellulose ether, preferably hydroxypropylmethylcellulose. Whether or not a SSG in the mixture is sufficiently uncross-linked in the context of the invention can be determined by sedimentation: 0.25 g of the formulation in 100 ml deionized water after 24 hours at 25° C., if subjected to centrifugation at 6080 G at 25° C. for 15 minutes, should exhibit a sedimentation volume of more than 60 ml.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: October 21, 2014
    Assignee: Campina Nederland Holding B.V.
    Inventors: Linqiu Cao, John Richard Langridge, Alexander Wilhelmus Van Gessel
  • Publication number: 20120263852
    Abstract: The invention pertains to process for manufacturing whey protein concentrate (WPC) from whey, said process involving (a) providing acidified whey; (b) increasing the pH of said acidified whey using one or more carbonate salt(s), preceded and/or followed by ultrafiltration, and (c) subjecting the ultrafiltered carbonate-containing whey to spray drying. A WPC is provided having improved functional properties, particularly increased gel strength and reduced salt sensitivity (i.e. meaning that the functional properties of the WPC are affected by salt to a lesser extent).
    Type: Application
    Filed: October 11, 2010
    Publication date: October 18, 2012
    Inventors: Suzanne Godelieve Thiessen-Bolder, Linqiu Cao, Iliana Hidalgo Torres
  • Publication number: 20110172160
    Abstract: The invention pertains to an aqueous composition containing lactoferrin, 35-70 wt % carbohydrate and/or polyol stabilizers, based on the total weight of the aqueous composition, said composition exhibiting a pH higher than 2, lower than 5. At these 5 conditions, the aqueous composition and lactoferrin contained therein may be subjected to a heat treatment without significantly affecting the physiological activity of the lactoferrin. The invention thus particularly pertains to the above aqueous composition, being heat-treated, thus containing heat-stabilized lactoferrin.
    Type: Application
    Filed: June 15, 2009
    Publication date: July 14, 2011
    Inventors: Linqiu Cao, Hans Maas
  • Publication number: 20100087549
    Abstract: A controlled release excipient composition suitable in formulation of a slow or extended release tablet, contains a synergistic mixture of substantially uncross-linked carboxymethyl starch, or sodium starch glycolate (SSG), and a hydrophilic, non-ionic cellulose ether, preferably hydroxypropylmethylcellulose. Whether or not a SSG in the mixture is sufficiently uncross-linked in the context of the invention can be determined by sedimentation: 0.25 g of the formulation in 100 ml deionized water after 24 hours at 25° C., if subjected to centrifugation at 6080 G at 25° C. for 15 minutes, should exhibit a sedimentation volume of more than 60 ml.
    Type: Application
    Filed: December 4, 2007
    Publication date: April 8, 2010
    Applicant: CAMPINA NEDERLAND HOLDING B.V.
    Inventors: Linqiu Cao, John Richard Langridge, Alexander Wilhelmus Van Gessel
  • Publication number: 20040235126
    Abstract: The invention relates to a method of preparing cross-linked enzyme aggregates (CLEAs) comprising the steps of a) precipitating a dissolved enzyme present in a liquid medium: b) cross-linking with a cross-linker, and c) optionally, washing the cross-linked enzyme aggregate. According to the invention at least one treatment is performed chosen from the group consisting of I) performing step a) in the presence of a compound selected from the group consisting of i) a crown ether, and ii) a surfactant, and II) performing step c) with a second liquid differing in organic composition from the liquid.
    Type: Application
    Filed: July 9, 2004
    Publication date: November 25, 2004
    Inventors: Paloma Lopez Serrano, Linqiu Cao, Frederik Van Rantwijk, Roger Arthur Sheldon
  • Publication number: 20030149172
    Abstract: Described is a method for the preparation of crosslinked enzyme aggregates, comprising the steps of:
    Type: Application
    Filed: February 28, 2002
    Publication date: August 7, 2003
    Applicant: AVANTIUM INTERNATIONAL B.V.
    Inventors: Linqiu Cao, Jeoffrey Elzinga