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. 07, 1978
Filed:
Nov. 21, 1974
Applicant:
Inventors:
Masahiko Ishida, Hitachi, JA;
Yoshitaka Oguri, Hitachi, JA;
Norio Shimizu, Hitachi, JA;
Tadashi Muroi, Hitachi, JA;
Assignee:
Hitachi, Ltd., , JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A23J / ;
U.S. Cl.
CPC ...
2601 / ;
Abstract
Proteins contained in microbial cells, for example, cells of petroleum-assimilable yeast, are separated and purified by extracting proteins from microbial cells, treating the resulting extract solution with a cation exchanger, treating said cation exchanger containing the adsorbed proteins with a volatile basic substance in the presence of water thereby to desorb or elute the adsorbed proteins, removing said basic substance dissolved in the resulting eluate by evaporation, and then concentrating the eluate thereby to obtain the dissolved proteins.