METHOD FOR MEASURING VIABLE CELL COUNT IN PRESENCE OF LACTIC ACID BACTERIUM

• Main Authors: SAKAI FUMIHIKO, IGARASHI HIDEO, TAKAHASHI CHITOSE, AOYAMA KENJI, YANAGIDAIRA SHUICHI, YAMAUCHI YOSHIHIKO
• Format: Patent
• Language: English
• Published: 25.10.2007
• Subjects: BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS OR TEST PAPERS THEREFOR; COMPOSITIONS THEREOF; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL ORENZYMOLOGICAL PROCESSES; CULTURE MEDIA; ENZYMOLOGY; MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEICACIDS OR MICROORGANISMS; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; PROCESSES OF PREPARING SUCH COMPOSITIONS; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPIRITS; VINEGAR; WINE

PROBLEM TO BE SOLVED: To provide a method for measuring the viable cell count of a bacterium other than a lactic acid bacterium, particularly the method for measuring the viable cell count of Bacillus cereus without being affected with the lactic acid bacterium in a sample containing the lactic acid bacterium present therein. SOLUTION: The method for measuring the viable cell count of the bacterium other than the lactic acid bacterium in the sample containing the lactic acid bacterium is provided. In the method, an agar culture medium containing 0.4-1.0% of lithium chloride added thereto is used. The agar culture medium is preferably the standard agar culture medium. When the bacterium is the Bacillus cereus, the agar culture medium is preferably an NGKG agar culture medium (a culture medium for separating and discriminating the Bacillus cereus). The amount of the added lithium chloride is preferably 0.4-0.6%. COPYRIGHT: (C)2008,JPO&INPIT