Pretty fast, just let me look it up to make sure I'm giving you accurate information
Staphyloccuss epidermidis will produce acid from glucose, lactose, sucrose, mannitoland glycerol. No acid from raffinose, salicin or inulin.Acid production is Phenol red turning yellow
Still working on the yeast fermentation
what about gas?
saccharomyces cerevisiae: glucose fructose Postive mannitol Negative
Saccharomyces will produce gas, staph will not..
Still checking on fructose for Staph.. That is not normally tested in the identification so I'll have to check some more resources
Staph will produce gas with lactose, but not the other sugars
It looks like Staph will ferment fructose, but I haven't ever run that sugar against Staph, so can't be 100% certain
Are you sure s. epidermidis ferments mannitol?
Found a reference in Bergey's manual. Staph will ferment fructose
Let me double check and give you the reference
That link says negative for mannitol, but other reference tests say differently..I'll give you those too
sorry, my mistake, I was looking at a research text on a variant of S. epidermidis
http://www.archive.org/stream/bergeysmanualofd1957amer/bergeysmanualofd1957amer_djvu.txtDistinctive characters: Coagulase-nega- tive. Ferments glucose but not mannitol under anaerobic conditions.