CULTURE MEDIUM FOR EXAMINING COLIFORM GROUP, METHOD FOR PRODUCING THE CULTURE MEDIUM AND METHOD FOR DETERMINING COLIFORM GROUP

摘要

PROBLEM TO BE SOLVED: To provide a concentrated culture medium for examining coliform groups, which does not precipitate and is superior in storage stability.;SOLUTION: This culture medium for examining the coliform groups is constituted of (A) 7.5 to 11.0%(w/v) sodium chloride, (B) 1.5 to 2.2%(w/v) potassium nitrate, (C) 1.5 to 2.2%(w/v) potassium dihydrogen phosphate, (D) 6.0 to 8.8%(w/v) dipotassium hydrogen phosphate, (E) 7.5 to 11.0%(w/v) peptone, (F) 0.15 to 0.22%(w/v) 5-bromo-4-chloro-3-indolyl-β-D-galactopyranoside, (G) 0.15 to 0.22%(w/v) isopropyl-β-D-thiogalactopyronoside, (H) 1.5 to 2.2%(w/v) sodium pyruvate, (I) 20 to 30%(w/v) propylene glycol, and (J) water.;COPYRIGHT: (C)2009,JPO&INPIT