The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 1981
Filed:
Jul. 15, 1980
Applicant:
Inventor:
Walter Steinmetzer, Supplingen, DE;
Assignee:
Societe d'Assistance Technique pour Produits Nestle S.A., Lausanne, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562554 ;
Abstract
A solution of leucine, isoleucine and valine is concentrated at a pH-value of from 1.5 to 2.0 to produce a mother liquor enriched with isoleucine and valine and a solid phase enriched with leucine. Concentrated hydrochloric acid is added to the mother liquor enriched with isoleucine and valine and, after concentration, a mother liquor enriched with valine and leucine and a solid phase enriched with isoleucine are obtained.