Abstract:
PROBLEM TO BE SOLVED: To provide a method and an apparatus easily producing, compared with a fermentation method, an amino acid in large quantity at a low cost. SOLUTION: An amino acid is produced by reacting a protein-containing biomass with an alkali in an oxygen-free atmosphere under heating. The confirmed amino acids producible by the method are phosphoserine, taurine, threonine, glutamic acid, α-aminoadipic acid, glycine, alanine, citrulline, α-aminobutyric acid, valine, methionine, cystathionine, isoleucine, leucine, tyrosine, phenylalanine, β-isoaminobutyric acid, GABA (γ-aminobutyric acid), tryptophan, ornithine, lysine, histidine, arginine and proline. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing an amino acid-decomposed liquid containing amino acids and sugar contents by hydrolyzing discolored dry laver with hydrochloric acid, neutralizing the hydrolyzed product and filtering the neutralized product. SOLUTION: The method for producing the amino acid-decomposed liquid comprises hydrolyzing the dry laver with the hydrochloric acid, neutralizing the hydrolyzed product by an alkali such as sodium hydroxide and sodium bicarbonate so as to have pH 4.5-6.5, and filtering the neutralized product to provide the transparent first filtrate. The amino acid liquid of the second filtrate is obtained by adding water to the residue obtained by squeezing the amino acid-decomposed product. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To obtain whole amino acids constituting proteins useful for a food, a feed, etc., from an organic industrial waste material, etc., and not requiring a purification of the reaction products by performing a hydrolysis of the proteins with a supercritical state or a sub-supercritical state water. SOLUTION: This method for producing amino acids or peptides by using a supercritical water is to perform a hydrolysis of proteins, preferably edible proteins, especially proteins derived from a corn by using a supercritical state or a sub-supercritical state water under conditions at 300-400 deg.C temperature, under 221-1000-atm pressure, and 1-40sec reaction time. Further, it is preferable to obtain peptides under a hydrolysis condition at 350-400 deg.C temperature, 221-1000-atm pressure and 4-30min reaction time, and e.g. 10-50 pt.wt. water is preferably used based on 1 pts.wt. protein.