Description
This method is a routine method for the enumeration of aerobic or anaerobic microorganisms on blood agar. The method may also be used for the enumeration of bacterial spores (spore count). The method is applicable for monitoring bacteria in the production or control of all kinds of food, feed or water, for instance mineral water. It can also be used as a supplementary analysis when investigating the causes of suspected infections or poisoning through food or water. The method does not replace aerobic plate count (NMKL No. 86), but it may be used as a supplement. For instance surface inoculation on blood agar may give valuable information regarding the colony morphology.