342 PATENT ABSTRACTS

and is electrochemically oxidized (anodic oxida- tion) are combined with each other. The use of the enzyme electrode allows the determination quantity of the enzyme substrate as extremely low as approximately 10-5 to 10-6 mole/l in con- centration.

4391910

P R O C E S S E S F O R P R O D U C I N G T H E R M O P H I L I C A S P A R T A S E

Kazuo Kimura, Kenichiro Takayama, Yutaka Ado, Tamotsu Kawamoto, Izumi Masunaga, Hofu, Japan assigned to Kyowa Hakko Kogyo Co Ltd

Thermophilic aspartase is produced by culturing a microorganism belonging to the genus Bacil- lus. The enzyme is useful as a catalyst in the pro- duction of L-aspartic acid from ammonium fumarate or a mixture of fumaric acid and ammonia.

4391649

P R O C E S S F O R R E G E N E R A T I N G A S T R O N G L Y A C I D I C C A T I O N

E X C H A N G E R E S I N

Hiroshi Shimizu, Sigeo Sakai, Fumihik Mat- soda, Reiko Matsumoto, Tokyo, Japan assigned to Japan Organo Co Ltd

a s a a ~ • I l • / a

i . i m i 1 i 1 1 i l i ;

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This invention relates to a process for regenerating a strongly acidic cation exchange resin which has used for a desalting treatment or partition chromatographic separation of a sugar liquid which lowers its separation capability, by means of contacting said strongly acidic cation exchange resin with an enzyme solution.

4390628

P R O C E S S F O R I S O L A T I N G C U , Z N - S U P E R O X I D E D I S M U T A S E F R O M A Q U E O U S S O L U T I O N S C O N T A I N I N G S A I D E N Z Y M E

T O G E T H E R W I T H A C C O M P A N Y I N G P R O T E I N S

Jack Johansen, Rungsted Kyst, Denmark as- signed to De Forenede Bryggerier A/S

Cu,Zn-superoxide dismutase (SOD) is isolated from aqueous solutions containing said enzyme together with accompanying proteins by chromatography of the solution at a pH of 4.7 to 5.0 on a cation exchange resin of the same polarity as SOD in the pH range used. As cation exchange resin may particularly be used carbox- ymethyl celluloses, cross-linked dextrans sub- stituted with carboxymethyl groups or sulfopropyl groups or cross-linked agaroses sub- stituted with carboxymethyl groups. The process lends itself to use on an industrial scale and pro- rides a high yield of pure SOD.

4390622

N E I S S E R I A B A C T E R I A S P E C I E S I D E N T I F I C A T I O N A N D B E T A

L A C T A M A S E T E S T I N G M E T H O D S

Garry W Cartwright

Method for rapid, high intensity visual indica- tion of the presence of Neisseria bacteria species utilizing a new and improved peptone buffer and pH indicator reagent.system as the specimen car- ricr for oxidation series testing, which series test