Thermo Scientific™ Remel™ Oxford Modified Agar Base

Description

• Selectively isolate Listeria monocytogenes in food samples with Thermo Scientific™ Remel™ Oxford Modified Agar Base (Dehydrated)
• In 1989, Curtis described a selective and differential medium to isolate L
• monocytogenes from specimens with mixed flora
• This is known as the Oxford Agar 1
• Lee and McClain developed a selective medium to isolate L
• monocytogenes from food products using colistin and moxalactam 2 in place of the original selective agents 2
• This medium is recommended by the American Public Health Association (APHA) for the recovery of L
• monocytogenes from meat and dairy products 3,4
• Listeria monocytogenes is a common contaminant in raw milk, meats, vegetables, seafood and in the food processing environment
• The ability to isolate the organism has been impeded in the past by lack of an effective selective medium, as Listeria monocytogenes can be easily overgrown by competing flora
• Use Oxford Modified Agar Base for selective isolation and detection of Listeria monocytogenes from food and environmental samples
• Selective : Lithium chloride and colistin inhibit growth of gram-positive and gram-negative organisms
• Recommended by the U.S
• Department of Agriculture Food Safety Inspection Service and the American Public Health Association (APHA)
• Oxford Agar Base Modified contains Columbia Agar Base that provides peptones and serves as the source of essential nutrients
• L
• monocytogenes hydrolyzes esculin to produce esculetin which combines with ferric ammonium citrate to form a black precipitate in the medium that surrounds the colonies
• Lithium chloride and colistin act as selective agents
• Moxalactam Selective Supplement (REF R450551) is added to the medium to increase selectivity
• Not all products are available for sale in all territories
• Please inquire
• Remel™ and Oxoid™ products are now part of the Thermo Scientific brand.