Escherichia coli have an incubation period of 12 72 hours with the optimal growth temperature being 30 37�C . Unlike the general coliform group, " E . coli " are almost exclusively of fecal origin and their presence is thus an effective confirmation of fecal contamination.
2.
"Escherichia coli " ( " E . coli " ), a rod-shaped member of the coliform group, can be distinguished from most other coliforms by its ability to ferment lactose at 44�C in the fecal coliform test, and by its growth and color reaction on certain types of culture media.
मोबाइल