Gram Escherichia coli
pink gram negative
Gram Salmonella enteritidis
pink gram negative
Staphylococcus aureus
violet gram positive
Staphylococcus epidermidis
violet gram positive
Micrococcus luteus
obligate aerobe
Staphylococcus epidermis
facultative anaerobe
Clostridium sporogenes
anaerobe