METHOD FOR PREPARING TRYPTOPHAN RICH PEPTIDES

Described is a method for selectively isolating tryptophan containing peptides from an aequeous peptide mixture, comprising the steps of: a) controlling the pH of the aequeous peptide mixture to 4,0-6,0, forming a precipitate of tryptophan containing peptides; and b) isolation of the precipitated pe...

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Bibliographische Detailangaben
Hauptverfasser:	MALLEE, LEON FRANCISCUS, BOUMANS, JOHANNES WILHELMUS LEONARDUS, CAESSENS, PETRONELLA WILHELMINA JOSEPHINA ROSA
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY ENZYMOLOGY FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY MICROBIOLOGY MUTATION OR GENETIC ENGINEERING ORGANIC CHEMISTRY PEPTIDES PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL PROTEIN COMPOSITIONS FOR FOODSTUFFS SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS SPIRITS THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES VINEGAR WINE WORKING-UP PROTEINS FOR FOODSTUFFS
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Beschreibung
Zusammenfassung:	Described is a method for selectively isolating tryptophan containing peptides from an aequeous peptide mixture, comprising the steps of: a) controlling the pH of the aequeous peptide mixture to 4,0-6,0, forming a precipitate of tryptophan containing peptides; and b) isolation of the precipitated peptides. The aequeous peptide mixture is preferably obtained by enzymatic cleavage at acidic pH of a protein source. Further, peptides having a Trp content of 8-15 w/w% and the use thereof as food additive and as active ingredient in a medicament are described.