Microbiology

Clostridium botulinum is a Gram-positive rod. It is motile, spore-forming and an obligate anaerobe. More
Escherichia coli O157:H7 is a Gram-negative rod. It does not form spores, is motile and facultatively anaerobic. More
Clostridium perfringens is a Gram-positive, spore forming rod. It is an obligate anaerobe and is non-motile. More

Listeria monocytogenes is a Gram-positive, non-sporing rod. It is motile and is aerobic and facultatively anaerobic.

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“Although a few bacteria are so morphologically remarkable as to make them identifiable without isolation, pure cultures are nearly always a necessity before one can attempt identification of an organism. It is important to realize that the single selection of a colony from a plate does not assure purity.”Bergey’s Manual of Systemic Bacteriology, vol. I More
Salmonella is a Gram-negative, motile, rod. It is non-spore forming and facultatively anaerobic. More
The Gram-Stain is the single most common and cost effective staining technique used in identifying bacterial organisms. The method was originally devised in 1884 by a Danish bacteriologist, Hans Christian Gram. More
Staphylococcus aureus is a Gram-positive coccus. It is a non-motile, non-sporing and facultatively anaerobic. More
While sampling alone cannot guarantee the safety of your product, it should be an integral part of your food safety system. More
Yersinia enterocolitica is a Gram-negative rod. It is non-motile and a non-spore former. It is facultatively anaerobic. More
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