Product Number: 1462300
For customer preparation of microbiological media. m-Endo broth is used for detection of total coliform bacteria using the membrane filtration method. m-Endo broth detects total coliform bacteria (colonies with a greenish-gold sheen). Lactose-fermenting bacteria produce acetaldehyde that reacts with the sodium sulfite and fuchsin to form red colonies. The development of a metallic sheen occurs when the organism produces aldehydes with the rapid fermentation of lactose. If the inoculum is too heavy, the sheen will be suppressed. Lactose-nonfermenting bacteria form clear, colorless colonies.
For potable water samples, confirm with Lauryl Tryptose and Brilliant Green Bile Broth tubes. Samples that test positive for total coliform bacteria should be further analyzed for the presence of fecal coliform or E. coli using EC Medium or EC Medium with MUG respectively.
Hach offers a variety of media and apparatus to meet all of
your recreational testing needs.
Hach has prepared media and convenient apparatus to make
wastewater and non-potable water testing fast and easy.
Whichever method a customer chooses for examining drinking
water samples, Hach has prepared media and convenient apparatus to make
testing easy and fast.
*when applicable
Phase Out
Items with this label are at the end of their life cycle and may become obsolete in the future.
Obsolete
Items with this label are obsolete and unavailable through eCommerce.
If applicable, please view Replacement Product above or contact Hach Customer Service for further assistance.
