Patents by Inventor Andre Leonardus De Roos

Andre Leonardus De Roos 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: 9993515
    Abstract: The present invention relates to a process to produce a composition comprising water-soluble peptides and having a Trp/LNAA ratio of more than 0.15, which comprises hydrolyzing lysozyme, preferably hen eggs lysozyme, to prepare a hydrolysate having a DH of between 5 and 45.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: June 12, 2018
    Assignee: DSM IP ASSETS B.V.
    Inventors: Andre Leonardus De Roos, Luppo Edens, Rudolf Franciscus Van Beckhoven, Alexander Lucia Leonardus Duchateau, Joris Kloek
  • Publication number: 20160082070
    Abstract: The present invention relates to a process to produce a composition comprising water-soluble peptides and having a Trp/LNAA ratio of more than 0.15, which comprises hydrolyzing lysozyme, preferably hen eggs lysozyme, to prepare a hydrolysate having a DH of between 5 and 45.
    Type: Application
    Filed: December 1, 2015
    Publication date: March 24, 2016
    Inventors: Andre Leonardus DE ROOS, Luppo EDENS, Rudolf Franciscus VAN BECKHOVEN, Alexander Lucia Leonardus DUCHATEAU, Joris KLOEK
  • Patent number: 9228219
    Abstract: The present invention relates to a process to produce a composition comprising water-soluble peptides and having a Trp/LNAA ratio of more than 0.15, which comprises hydrolyzing lysozyme, preferably hen eggs lysozyme, to prepare a hydrolysate having a DH of between 5 and 45.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: January 5, 2016
    Assignee: DSM IP ASSETS B.V.
    Inventors: Andre Leonardus De Roos, Luppo Edens, Rudolf Franciscus Van Beckhoven, Alexander Lucia Leonardus Duchateau, Joris Kloek
  • Publication number: 20150201663
    Abstract: The present invention relates to a protein hydrolysate, wherein the hydrolysate has a percentage of peptides having a histidine residue at the C-terminal end of at least 10 wt % of the total peptide content of the protein hydrolysate and a process for preparing the protein hydrolysate. The invention further relates to a food or feed product comprising the protein hydrolysate.
    Type: Application
    Filed: August 13, 2013
    Publication date: July 23, 2015
    Inventors: Andre Leonardus De Roos, Jing Shi, Luppo Edens
  • Publication number: 20140206036
    Abstract: The present invention relates to a process for the proteolytic hydrolysis of a peptide or a polypeptide, said peptide or polypeptide comprising 4 to 40, preferably 5 to 35, amino acid residues and said peptide or polypeptide is not hydrolysable by subtilisin whereby said peptide or polypeptide is hydrolysed by a proline specific endo protease at a pH of 6.5 or lower, preferably 5.5 or lower and more preferably 5.0 or lower to hydrolyse said peptide or polypeptide.
    Type: Application
    Filed: September 9, 2013
    Publication date: July 24, 2014
    Applicant: DSM IP ASSETS B.V.
    Inventors: Luppo EDENS, Robertus Antonius Mijndert VAN DER HOEVEN, Andre Leonardus DE ROOS, Melissa HARVEY
  • Publication number: 20130231278
    Abstract: The present invention relates to a process to produce a composition comprising water-soluble peptides and having a Trp/LNAA ratio of more than 0.15, which comprises hydrolyzing lysozyme, preferably hen eggs lysozyme, to prepare a hydrolysate having a DH of between 5 and 45.
    Type: Application
    Filed: October 31, 2012
    Publication date: September 5, 2013
    Applicant: DSM IP Assets B.V.
    Inventors: Andre Leonardus De Roos, Luppo Edens, Rudolf Franciscus Van Beckhoven, Alexander Lucia Leonardus Duchateau, Joris Kloek
  • Patent number: 8524225
    Abstract: The present invention relates to a process for the proteolytic hydrolysis of a peptide or a polypeptide, said peptide or polypeptide comprising 4 to 40, preferably 5 to 35, amino acid residues and said peptide or polypeptide is not hydrolysable by subtilisin whereby said peptide or polypeptide is hydrolysed by a proline specific endo protease at a pH of 6.5 or lower, preferably 5.5 or lower and more preferably 5.0 or lower to hydrolyse said peptide or polypeptide.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: September 3, 2013
    Assignee: DSM IP Assets B.V.
    Inventors: Luppo Edens, Melissa Harvey, Robertus Antonius Mijndert Van Der Hoeven, Andre Leonardus De Roos
  • Patent number: 8088597
    Abstract: A process to produce IPP from a protein source whereby the protein source comprises a protein having the -I-P-P- sequence and having in the protein amino acid sequence at least 6 times more -I-P-P- present than -V-P-P- (molar basis) which comprises hydrolysing the protein source to liberate at least 40% of the I-P-P- sequence into the peptide IPP and whereby a proteolytic enzyme is used which cleaves at the carboxy-terminus of proline residues present in the protein source, the enzyme is preferably a proline specific endoprotease or proline specific oligopeptidase, more preferably a proline specific endoprotease, and optionally an amino peptidase.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: January 3, 2012
    Assignee: DSM IP Assets B.V.
    Inventors: Andre Leonardus De Roos, Pieter Marinus Van Den Broecke, Luppo Edens
  • Publication number: 20110256265
    Abstract: The present invention describes a hydrocolloid matrix in which an enzyme is entrapped. During the cheese making process this matrix can be added to milk. The enzymes are then mainly released from the matrix after that the separation of curd from the whey has taken place.
    Type: Application
    Filed: June 21, 2011
    Publication date: October 20, 2011
    Applicant: DSM IP ASSETS B.V.
    Inventors: Ben Rudolf De Haan, Andre Leonardus De Roos
  • Publication number: 20110171294
    Abstract: The present invention relates to a composition of at least one protease and a mode of application for treating patients suffering from pancreatic enzyme insufficiency, pancreatitis or cystic fibrosis. The composition of enzymes comprises at least one protease which has a pH optimum below 5.0 and wherein said protease is further active in the presence of pepsin. In a preferred embodiment, said protease is of microbial origin.
    Type: Application
    Filed: September 28, 2009
    Publication date: July 14, 2011
    Applicant: DSM IP ASSETS B.V.
    Inventors: Luppo Edens, Andre Leonardus De Roos
  • Patent number: 7972808
    Abstract: The present invention describes a protein hydrolysate which is rich in tripeptides whereby the tripeptides are rich in proline at one end of the peptide.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: July 5, 2011
    Assignee: DSM IP Assets B.V.
    Inventors: Luppo Edens, Petrus Jacobus Theodorus Dekker, Andre Leonardus De Roos
  • Publication number: 20110142987
    Abstract: The present invention relates to a process for the proteolytic hydrolysis of a peptide or a polypeptide, said peptide or polypeptide comprising 4 to 40, preferably 5 to 35, amino acid residues and said peptide or polypeptide is not hydrolysable by subtilisin whereby said peptide or polypeptide is hydrolysed by a proline specific endo protease at a pH of 6.5 or lower, preferably 5.5 or lower and more preferably 5.0 or lower to hydrolyse said peptide or polypeptide.
    Type: Application
    Filed: October 18, 2010
    Publication date: June 16, 2011
    Applicant: DSM IP Assets B.V.
    Inventors: Luppo Edens, Robertus Antonius Mijndert Van Der Hoeven, Andre Leonardus De Roos, Melissa Harvey
  • Publication number: 20110086803
    Abstract: The present invention relates to a process to produce a composition comprising water-soluble peptides and having a Trp/LNAA ratio of more than 0.15, which comprises hydrolyzing lysozyme, preferably hen eggs lysozyme, to prepare a hydrolysate having a DH of between 5 and 45.
    Type: Application
    Filed: October 30, 2007
    Publication date: April 14, 2011
    Inventors: Andre Leonardus De Roos, Luppo Edens, Rudolf Franciscus Van Beckhoven, Alexander Lucia Leonardus Duchateau, Joris Kloek
  • Patent number: 7648721
    Abstract: The present invention provides a composition comprising hydrolysed milk casein and, preferably non-hydrolysed whey protein in a ratio from 9:1 to 1:1 (on dry weight), which is a clear liquid at pH 4 when dissolved or present in water in an amount of 40 g/liter at 10° C.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: January 19, 2010
    Assignee: DSM IP Assets B.V.
    Inventors: Luppo Edens, Andre Leonardus De Roos
  • Publication number: 20090325888
    Abstract: The present invention provides the tripeptide MAP and/or the tripeptide ITP and/or salts thereof for use as a health benefit agent, especially in functional food products. The tripeptides have particular application in the areas of the prevention of obesity or body weight control and cardiovascular health maintenance, especially the inhibition of angiotensin-converting enzyme and the control of blood cholesterol levels. Functional Food products comprising these tripeptides and having health benefits in these areas, and a process for making these products, are also provided. The tripeptides can be conveniently incorporated into food products to provide the aforementioned health benefits to the consumer thereof.
    Type: Application
    Filed: March 31, 2006
    Publication date: December 31, 2009
    Inventors: Luppo Edens, Cinderella Christina Gerhardt, Christianus Jacobus Van Platerink, Andre Leonardus De Roos
  • Publication number: 20090270337
    Abstract: An edible composition comprising peptides rich in tryptophan, which edible composition further comprises a rapidly available glucose composition and a slowly available glucose composition.
    Type: Application
    Filed: April 28, 2009
    Publication date: October 29, 2009
    Applicant: CONOPCO, INC., D/B/A UNILEVER
    Inventors: Rudolf Franciscus W.C. van Beckhoven, Alexander Lucia L. Duchateau, Luppo Edens, Franciscus Antonius M Kleinherenbrink, Joris Kloek, Andre Leonardus de Roos
  • Publication number: 20090269443
    Abstract: A process to prepare packaged pasteurized or sterilized aqueous drinkable products which comprise casein micelles (e.g. from dairy protein) and peptide-fractions, which peptide fractions are rich in tryptophan, and the products so-obtained. The process requires a heat preservation at a specific pH.
    Type: Application
    Filed: April 28, 2009
    Publication date: October 29, 2009
    Applicant: CONOPCO, INC.,d/b/a/ UNILEVER
    Inventors: Rudolf Franciscus W C. van BECKHOVEN, Arjen BOT, Alexander Lucia L. DUCHATEAU, Luppo EDENS, Joris KLOEK, Andre Leonardus de ROOS
  • Publication number: 20080220470
    Abstract: The present invention describes a protein hydrolysate which is rich in tripeptides whereby the tripeptides are rich in proline at one end of the peptide.
    Type: Application
    Filed: February 29, 2008
    Publication date: September 11, 2008
    Applicant: DSM IP ASSETS B.V.
    Inventors: Luppo EDENS, Petrus Jacobus Theodorus Dekker, Andre Leonardus De Roos
  • Publication number: 20080161227
    Abstract: A process to produce IPP from a protein source whereby the protein source comprises a protein having the -I-P-P- sequence and having in the protein amino acid sequence at least 6 times more -I-P-P- present than -V-P-P- (molar basis) which comprises hydrolysing the protein source to liberate at least 40% of the I-P-P- sequence into the peptide IPP and whereby a proteolytic enzyme is used which cleaves at the carboxy-terminus of proline residues present in the protein source, the enzyme is preferably a proline specific endoprotease or proline specific oligopeptidase, more preferably a proline specific endoprotease, and optionally an amino peptidase.
    Type: Application
    Filed: February 23, 2006
    Publication date: July 3, 2008
    Inventors: Andre Leonardus De Roos, Pieter Marinus Van Broecke, Luppo Edens
  • Publication number: 20070207944
    Abstract: The present invention describes a process to produce IPP from a protein source whereby the ratio of IPP and VPP produced from the protein is at least 5, preferably at least 10 and more preferably at least 20, which comprises the use of a proline specific endoprotease.
    Type: Application
    Filed: July 12, 2005
    Publication date: September 6, 2007
    Inventors: Luppo Edens, Andre Leonardus De Roos, Robertus Antonius Mijndert Van Der Hoeven, Philippus Antonius Deen