[Microbiology] To nathan

mohsen arefnejad via microbio%40net.bio.net (by mparef from gmail.com)
Fri Apr 11 10:59:56 EST 2008

It depends on what spiese of E,coli to use ,
Remember the purpel greenish coloer not fixed identification becuse some
citrobacter has purpel greenish and some speies of E,coli are lactose
negative ,and can not use the suger so not pruduce Acid to convert colore
hope to help you .
PhD student

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