Patents by Inventor Johannes Wouterus van Groenestijn
Johannes Wouterus van Groenestijn 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).
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Patent number: 11224245Abstract: A process for producing thermally inhibited starch, specifically thermally inhibited non-pregelatinized granular starch, is described, resulting in a viscostable starch product. The process comprising providing an alkaline starch, specifically an alkaline non-pregelatinized granular starch, having a pH of at least 8; subjecting the starch to a hydrothermal treatment, specifically to obtain a hydrothermally treated non-pregelatinized granular starch, said hydrothermal treatment being at a temperature of 45-200° C. with steam at a steam pressure of 0.1-15 bar or a gas mixture comprising water vapor at a partial water vapor pressure of 0.1-1 bar; dehydrating the starch, specifically the hydrothermally treated non-pregelatinized granular starch, to a moisture content of 2 wt % or lower and subjecting the starch to a thermal treatment by heating the starch to a temperature of 120-190° C. to obtain viscostability, cooling and optionally further processing the starch.Type: GrantFiled: October 13, 2017Date of Patent: January 18, 2022Assignee: STICHTING WAGENINGEN RESEARCHInventors: Maurice Karel Hubertina Essers, Johannes Wouterus Van Groenestijn
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Patent number: 10954532Abstract: The invention relates to a process for the production of biogas from biomass, in particular from lignocellulose-containing biomass. According to the invention bio gas is produced from lignocellulose-containing biomass in a process, wherein the cellulose and hemicellulose in the lignocellulose are made accessible for bioconversion.Type: GrantFiled: October 10, 2007Date of Patent: March 23, 2021Assignee: STICHTING WAGENINGEN RESEARCHInventors: Johannes Wouterus Van Groenestijn, Gijsbert Maurits Bos
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Publication number: 20200138076Abstract: A process for producing thermally inhibited starch, specifically thermally inhibited non-pregelatinized granular starch, is described, resulting in a viscostable starch product. The process comprising providing an alkaline starch, specifically an alkaline non-pregelatinized granular starch, having a pH of at least 8; subjecting the starch to a hydrothermal treatment, specifically to obtain a hydrothermally treated non-pregelatinized granular starch, said hydrothermal treatment being at a temperature of 45-200° C. with steam at a steam pressure of 0.1-15 bar or a gas mixture comprising water vapor at a partial water vapor pressure of 0.1-1 bar; dehydrating the starch, specifically the hydrothermally treated non-pregelatinized granular starch, to a moisture content of 2 wt % or lower and subjecting the starch to a thermal treatment by heating the starch to a temperature of 120-190° C. to obtain viscostability, cooling and optionally further processing the starch.Type: ApplicationFiled: October 13, 2017Publication date: May 7, 2020Applicant: Stichting Wageningen ResearchInventors: Maurice Karel Hubertina ESSERS, Johannes Wouterus VAN GROENESTIJN
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Patent number: 10100025Abstract: The invention relates to obtaining furans from biomass. In particular, the invention relates to obtaining furans from polyols, such as tetrahydroxybutane. In accordance with the invention tetrahydroxybutane is converted to furan in the presence of a catalyst. The tetrahydroxybutane may be dissolved in a solvent such as water.Type: GrantFiled: November 20, 2015Date of Patent: October 16, 2018Assignee: NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUUREWETENSCHAPPELIJK ONDERZOEK TNOInventors: Marc Crockatt, Jan Harm Urbanus, Johannes Wouterus Van Groenestijn, Martijn Constantijn De Koning
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Publication number: 20170320843Abstract: The invention relates to obtaining furans from biomass. In particular, the invention relates to obtaining furans from polyols, such as tetrahydroxybutane. In accordance with the invention tetrahydroxybutane is converted to furan in the presence of a catalyst. The tetrahydroxybutane may be dissolved in a solvent such as water.Type: ApplicationFiled: November 20, 2015Publication date: November 9, 2017Inventors: Marc CROCKATT, Jan Harm URBANUS, Johannes Wouterus VAN GROENESTIJN, Martijn Constantijn DE KONING
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Patent number: 9435077Abstract: The invention is related to a method for processing biomass derived from plants or animals, comprising the steps of: a. pre treating said material with an aqueous solution of acid or base; b. subsequently passaging saturated or super heated steam through said material, wherein the water activity of the process is controlled by means of temperature and pressure of the super heated steam to be less than 1, preferably less than 0.8, more preferably in the range of 0.4-0.8. With such a process it is possible to disintegrate or make more accessible for subsequent treatments the lignocellulose from lignocellulose containing materials, like wood or other plant material, chitin from exoskeletons from Crustacea like crabs and shrimps, and proteins such as keratin from pig hair or chicken feather, for further derivation, like acylation, oxidation, etherification, carboxymethylation or esterification, or further enzymatic hydrolysis, and/or for production of chemicals, e.g.Type: GrantFiled: December 10, 2010Date of Patent: September 6, 2016Assignee: NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNOInventors: Johannes Wouterus Van Groenestijn, Jan Matthijs Jetten, Hendricus Cornelis Van Deventer, Ronald Slomp, Theodoor Maximiliaan Slaghek
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Patent number: 8852531Abstract: The present invention relates to a system for detecting microbial contamination of a liquid specimen comprising a device for concentrating micro-organisms from a liquid specimen, having (i) a hypobaric chamber, (ii) a filter housing comprising a liquid-permeable bed of an adsorbent material and adapted for being fluidly connected to said hypobaric chamber, and (iii) a vacuum pump adapted for being fluidly connected to said hypobaric chamber, said system further comprising a kit for detection of micro-organisms adsorbed to said adsorbent material, wherein said kit is based on enzymatic detection using chromogenic and/or fluorescent substrate analogs.Type: GrantFiled: November 24, 2008Date of Patent: October 7, 2014Assignee: Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek TNOInventors: Jan Gerritse, Johannes Wouterus van Groenestijn, Neeltje Dina Zegers
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Patent number: 8846384Abstract: The present invention relates to a system for detecting microbial contamination of a liquid specimen comprising a device for concentrating micro-organisms from a liquid specimen, having (i) a hyperbaric chamber, (ii) a filter housing comprising a liquid-permeable bed of an adsorbent material and adapted for being fluidly connected to the hyperbaric chamber, and (iii) a manner for pressurizing the hyperbaric chamber. The system also comprises a kit for detection of micro-organisms adsorbed to the adsorbent material, wherein the kit is based on enzymatic detection using chromogenic and/or fluorescent substrate analogues.Type: GrantFiled: November 24, 2008Date of Patent: September 30, 2014Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNOInventors: Jan Gerritse, Johannes Wouterus van Groenestijn, Neeltje Dina Zegers
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Publication number: 20120282660Abstract: The invention is related to a method for processing biomass derived from plants or animals, comprising the steps of: a. pre treating said material with an aqueous solution of acid or base; b. subsequently passaging saturated or super heated steam through said material, wherein the water activity of the process is controlled by means of temperature and pressure of the super heated steam to be less than 1, preferably less than 0.8, more preferably in the range of 0.4-0.8. With such a process it is possible to disintegrate or make more accessible for subsequent treatments the lignocellulose from lignocellulose containing materials, like wood or other plant material, chitin from exoskeletons from Crustacea like crabs and shrimps, and proteins such as keratin from pig hair or chicken feather, for further derivation, like acylation, oxidation, etherification, carboxymethylation or esterification, or further enzymatic hydrolysis, and/or for production of chemicals, e.g.Type: ApplicationFiled: December 10, 2010Publication date: November 8, 2012Applicant: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNOInventors: Johannes Wouterus Van Groenestijn, Jan Matthijs Jetten, Hendricus Cornelis Van Deventer, Ronald Slomp, Theodoor Maximiliaan Slaghek
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Publication number: 20110033881Abstract: The present invention relates to a system for detecting microbial contamination of a liquid specimen comprising a device for concentrating micro-organisms from a liquid specimen, having (i) a hyperbaric chamber, (ii) a filter housing comprising a liquid-permeable bed of an adsorbent material and adapted for being fluidly connected to said hyperbaric chamber, and (iii) a means for pressurizing said hyperbaric chamber, said system further comprising a kit for detection of micro-organisms adsorbed to said adsorbent material, wherein said kit is based on enzymatic detection using chromogenic and/or fluorescent substrate analogues.Type: ApplicationFiled: November 24, 2008Publication date: February 10, 2011Inventors: Jan Gerritse, Neeltje Dina Zegers, Johannes Wouterus van Groenestijn
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Publication number: 20110003328Abstract: The present invention relates to a system for detecting microbial contamination of a liquid specimen comprising a device for concentrating micro-organisms from a liquid specimen, having (i) a hypobaric chamber, (ii) a filter housing comprising a liquid-permeable bed of an adsorbent material and adapted for being fluidly connected to said hypobaric chamber, and (iii) a vacuum pump adapted for being fluidly connected to said hypobaric chamber, said system further comprising a kit for detection of micro-organisms adsorbed to said adsorbent material, wherein said kit is based on enzymatic detection using chromogenic and/or fluorescent substrate analogues.Type: ApplicationFiled: November 24, 2008Publication date: January 6, 2011Inventors: Jan Gerritse, Johannes Wouterus van Groenestijn, Neeltje Dina Zegers
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Publication number: 20100015680Abstract: The invention relates to a process for the production of biogas from biomass, in particular from lignocellulose-containing biomass. According to the invention bio gas is produced from lignocellulose-containing biomass in a process, wherein the cellulose and hemicellulose in the lignocellulose are made accessible for bioconversion.Type: ApplicationFiled: October 10, 2007Publication date: January 21, 2010Inventors: Johannes Wouterus Van Groenestijn, Gijsbert Maurits Bos
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Patent number: 7507391Abstract: Sulphur oxides are generated from a liquid stream of hydrogen sulphide by feeding the liquid stream to a vacuum stripper where the stream is contacted with a stripping gas including steam under reduce pressure. Hydrogen sulphide is transferred to the stripping gas, whereby a loaded stripping gas is obtained. Water in the loaded stripping gas is condensed producing a H2S rich stream. The H2S is then burned in the stream to produce a stream rich in oxides of sulphur.Type: GrantFiled: August 10, 2007Date of Patent: March 24, 2009Assignee: Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNOInventors: Jacob Hendrik Obbo Hazewinkel, Johannes Wouterus Van Groenestijn, Koen Peter Henri Meesters
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Patent number: 7501025Abstract: The invention is directed to a process for the conversion of cellulosic biomass, in particular lignocellulose-containing biomass into fermentable sugars. The invention is further directed to apparatus suitable for carrying out such processes. According to the invention biomass is converted into fermentable sugars by contacting in a reactor said biomass with an acid, while passing an inert gas stream capable of taking up water through said reactor, by which the pH in said reactor can be controlled.Type: GrantFiled: August 10, 2007Date of Patent: March 10, 2009Assignees: Agrotechnology & Food Innovations B.V., Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNO, Techno Invent Ingenieursbureau voor Milieutechniek B.V.Inventors: Robert Reurd C. Bakker, Jacob Hendrik O. Hazewinkel, Johannes Wouterus Van Groenestijn
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Patent number: 7442359Abstract: The invention is directed to a process for the recovery of sulphuric acid from a mixture comprising sulphuric acid and hydrocarbons, in particular carbohydrates. In accordance with the present invention the mixture comprising sulphuric acid and carbohydrates, is contacted with an anion selective membrane, thus producing a sulphuric acid rich filtrate stream and a stream depleted in sulphuric acid.Type: GrantFiled: August 10, 2007Date of Patent: October 28, 2008Assignee: Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNOInventors: Johannes Wouterus Van Groenestijn, Jacob Hendrik Obbo Hazewinkel, Raymond Johannes Maria Creusen, Koen Peter Henri Meesters
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Patent number: 6709592Abstract: The invention relates to a process for removal of sulfur compounds from wastewater, which process provides recovery of elemental sulfur. The process is carried out in two separate anaerobic reactors. In the first reactor organic compounds are converted to acid compounds and sulfur compounds are converted to sulfide compounds. The sulfide compounds are stripped from said first reactor with a stripping gas. Subsequently, the effluent of the first reactor is fed to a second anaerobic reactor, in which organic compounds, such as the acid compounds, are converted to produce biogas, while any unconverted sulfur compounds from the previous step are converted to sulfide compounds as well. Finally, the sulfide compounds are removed from the second reactor in a stripping system, and converted to elemental sulfur in an adsorber.Type: GrantFiled: November 25, 2002Date of Patent: March 23, 2004Assignee: Nederlandse Organisatie Voor Toegepast - Natuurwetenschappelijk Onderzoek TnoInventors: Johannes Wouterus van Groenestijn, Josephus Sychbertus Adrianus Langerwerf
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Publication number: 20030141243Abstract: The invention relates to a process for removal of sulfur compounds from wastewater, which process provides recovery of elemental sulfur. The process is carried out in two separate anaerobic reactors. In the first reactor organic compounds are converted to acid compounds and sulfur compounds are converted to sulfide compounds. The sulfide compounds are stripped from said first reactor with a stripping gas. Subsequently, the effluent of the first reactor is fed to a second anaerobic reactor, in which organic compounds, such as the acid compounds, are converted to produce biogas, while any unconverted sulfur compounds from the previous step are converted to sulfide compounds as well. Finally, the sulfide compounds are removed from the second reactor in a stripping system, and converted to elemental sulfur in an adsorber.Type: ApplicationFiled: November 25, 2002Publication date: July 31, 2003Inventors: Johannes Wouterus Van Groenestijn, Josephus Sychbertus Adrianus Langerwerf