Thermo Scientific™ Bile Disk

Description

• Differentiate Bacteroides fragilis group from other Bacteroides species and identify other anaerobic bacteria with Thermo Scientific™ Remel™ Bile Disk
• Yamazaki et al
• replaced the bile tube 1 that was used earlier to differentiate Bacteroides fragilis group from other Bacteroides species
• They used 25 mg bile-impregnated filter paper disk
• In 1983, Weinberg et al reported comparable results with a 15 mg bile disk that helped to clearly separate bile-resistant and bile-sensitive anaerobes 2
• Bacteroides fragilis is an anaerobic Gram-negative bacillus most frequently recovered from human infections
• Bile-resistant organisms can grow in the presence of bile and present a resistant growth pattern around the disk whereas bile-sensitive organisms exhibit a zone of inhibition around the Bile Disk
• This phenomenon can be used to differentiate B.fragilis from other Bacteroides spp and to aid in identification of other anaerobic bacteria
• B
• fragilis is the only commonly encountered anaerobic Gram-negative bacillus that is not inhibited by bile
• 3 Ready to use : Reagent-impregnated disk
• No additional preparation required
• Easy interpretation: Sensitive : An inhibitory zone around the bile disk
• Resistant: Growth pattern up to the disk
• Bile Disk contains reactive ingredient oxgall (15.0 mg/mL)
• Not all products are available for sale in all territories
• Please inquire
• Remel™ and Oxoid™ products are now part of the Thermo Scientific brand.