Reliability of VRB agar and BGLB broth for enumeration of 44 degrees C coliforms in food.
This study shows that colony diameter exceeding 0.5 mm and presence of a surrounding precipitation zone are not unconditional criteria for 44 degrees C coliforms (Escherichia coli and Klebsiella species) grown on violet red bile agar. Confirmatory studies in brilliant green lactose bile broth will add to the numbers of coliforms which are missed if these criteria are adhered to.
D000362:Agar; D003470:Culture Media; D004926:Escherichia coli / Q000254:growth & development*; D005516:Food Microbiology; D007709:Klebsiella / Q000254:growth & development*; D013696:Temperature
D003470:Culture Media; D000362:Agar