Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Enzymatic production of a protein or polypeptide
Reexamination Certificate
2011-07-12
2011-07-12
Kim, Taeyoon (Department: 1651)
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Enzymatic production of a protein or polypeptide
C426S041000, C426S583000, C514S001100, C514S005600
Reexamination Certificate
active
07977066
ABSTRACT:
Described is a method for selectively isolating tryptophan containing peptides from an aqueous peptide mixture, including the steps of controlling the pH of the aqueous peptide mixture to 4.0-6.0, forming a precipitate of tryptophan containing peptides, and isolating the precipitated peptides.The aqueous 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 a food additive and as an active ingredient in a medicament are described.
REFERENCES:
patent: 4485040 (1984-11-01), Roger et al.
patent: 4486282 (1984-12-01), Bier
patent: 5888552 (1999-03-01), Bounous et al.
patent: 4130284 (1993-03-01), None
patent: 2 671 351 (1992-07-01), None
patent: 02279700 (1990-11-01), None
patent: 2000-001500 (2000-01-01), None
ExPaSy Peptide Cutter. Pepsin Digestion on Alpha-lactalbumin (NP 776803), pp. 1-2, (2007).
NCBI Sequence Viewer, V. 2.0., NP 776803: Alpha-lactalbumin, pp. 1-3, (2007).
English Translation of DE 4130284 A1, 2008, pp. 1-2.
Markus, et al., “The Bovine Protein a-lactalbumin Increases the Plasma Ration of Tryptophan to the Other Large Neutral Amino Acids, and in Vulnerable Subjects Raises Brain Serotonin Activity, Reduces Cortisol Concentration, and Improves Mood Under Stress,”The American Journal of Clinical Nutrition, vol. 71, No. 6, 2000, pp. 1536-1544.
Boumans Johannes Wilhelmus Leonardus
Caessens Petronella Wilhelmina Josephina Rosa
Mallee Leon Franciscus
Campina Melkunie B.V.
Foley & Lardner LLP
Kim Taeyoon
Talapatra Sunit
Villacorta Gilberto M.
LandOfFree
Method for preparing tryptophan rich peptides does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for preparing tryptophan rich peptides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for preparing tryptophan rich peptides will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2693371