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:
Feb. 24, 1976
Filed:
Nov. 02, 1971
Helmut Hustede, Ladenburg (Neckar), DT;
Herman Rudy, deceased, LATE OF Heidelberg, DT;
by Liselotte Rudy nee Ringelmann, heir, Heidelberg, DT;
by Hans Rudy, heir, Heidelberg, DT;
by Barbara Sallewsky nee Rudy, heir, St. Hermas, CA;
Joh. A. Benckiser GmbH, Ludwigshafen (Rhine), DT;
Abstract
The invention concerns the production of citric acid-producing mycelial pellets of a citric acid-producing microorganism by a selective treatment with ferrocyanide or ferricyanide ions. Known Asperigillus or Penicillium are well suited for the fermentation. The invention also concerns the production of citric acid with the pellets of the invention by submerged fermentation. The fermentation is remarkably more efficient than conventional methods, greater yields being obtained in a shorter time.