MacConkey agar reagent INTRAY® SMA

pathologyfor bacterial isolationEscherichia coli

InTray SMA (Sorbitol MacConkey Agar) is a selective and differential media for the detection of sorbitol-non-fermenting Escherichia coli serotype O157:H7 associated with hemorrhagic colitis. This medium is also referred to as “MacConkey Sorbitol Agar”. Escherichia coli serotype O157:H7 is a human pathogen associated with hemorrhagic colitis that results from the action of a shiga-like toxin. On standard MacConkey agar containing lactose, this strain is indistinguishable from other lactose-fermenting Escherichia coli. Field results show that the growth of Escherichia coli O157:H7 on SMA is heavy and occurs in almost pure culture — as colorless sorbitol-non-fermenting colonies. Most organisms of the fecal flora ferment sorbitol and appear pink on this medium. SMA, therefore, permits ready recognition of Escherichia coli O157:H7 in stool cultures. SPECIFICATIONS Product Principle - Durable injection molded device Highly selective media designed for growth, transport and result Sealed environment with Tyvek® air filtration Resealable media well reduces exposure and contamination Simple Convenience - The InTray is designed for specimen collection/ inoculation at point-of-care Saves time, material cost and waste, reducing exposure to collected sample Place directly on the microscope tray for observation through the cassette’s clear anti-fog window Selectively produces distinctive colony growth with typical identifiable morphology