Antibiotic Supplements

Antibiotic Supplements products are formulated to supply the required nutrients to allow for the growth of microorganisms. Used in combination with a variety of selective agents and incubation conditions a wide range of specific organisms can be isolated. With careful raw material selection of the various media components E&O can ensure a consistent level of quality and performance. For each formulation the necessary ingredients are accurately weighed, combined and blended together to produce a homogenous powdered product.

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  • Clostridium perfringens Selective Supplement E&O Laboratories Ltd Clostridium Perfringens (TSC) Selective Supplement (LS0023) is an antibiotic supplement used to enhance the selective isolation of Clostridium perfringens from clinical specimens and foodstuffs.  
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  • Ferric Ammonium Citrate (FAC) Supplement E&O Laboratories Ltd Ferric Ammonium Citrate (LS5004) is a supplement used in the isolation of Listeria spp. with Fraser Broth. Fraser Broth is a modification of the USDA-FSIS (United States Department of Agriculture-Food Safety Inspection Service) UVM secondary enrichment broth and is based on the formula described by Fraser and Sperber. Blackening of the medium is presumptive evidence of the presence of Listeria. Contrary to early indications, cultures which do not blacken cannot be assumed to be Listeria-free. All Fraser Broth enrichment cultures should be subcultured to plating medium. The medium is intended for the isolation of Listeria spp. from food and environmental samples when used as the secondary enrichment medium in the USDA-FSIS methodology for Listeria isolation. It is generally accepted that the USDA-FSIS two stage enrichment method employing UVM primary and secondary enrichment broths is the most suitable for the examination of meat products.
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  • Half Fraser Broth Selective Supplement E&O Laboratories Ltd Half Fraser Selective Supplement (LS5003) is selective supplement for the primary enrichment of Listeria spp from food and environmental samples when used with Fraser Broth.Fraser Broth is a modification of the USDA-FSIS (United States Department of Agriculture-Food Safety Inspection Service) UVM secondary enrichment broth and is based on the formula described by Fraser and Sperber. It contains ferric ammonium citrate and lithium chloride. Blackening of the medium is presumptive evidence of the presence of Listeria. Contrary to early indications, cultures which do not blacken cannot be assumed to be Listeria-free. All Fraser Broth enrichment cultures should be subcultured to plating medium. Fraser Broth has proven to be remarkably accurate in detecting Listeria spp. in food and environmental samples. All Listeria spp. hydrolyse aesculin to aesculetin. Aesculetin reacts with ferric ions which results in blackening. Another possible advantage to the addition of ferric ammonium citrate is that it has been shown that ferric ions enhance the growth of Listeria monocytogenes. Lithium chloride is included in the medium to inhibit the growth of enterococci which can also hydrolyse aesculin. Half Fraser Broth is a modification of Fraser Broth which contains half of the concentration of nalidixic acid and acriflavine hydrochloride to aid in the recovery of stressed cells. Half Fraser Broth is used as the primary enrichment broth in the ISO methodology for the detection of Listeria.
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  • Fraser Broth Selective Supplement E&O Laboratories Ltd Fraser Broth Selective Supplement (LS5002) is an antibiotic supplement used to enhance the selective isolation of Listeria spp. in combination with Fraser Broth.  
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  • Modified Campylobacter (Bolton) Selective Supplement E&O Laboratories Ltd Campylobacter Modified (Bolton) Selective Supplement (LS1054) is a supplement used to enhance the selective isolation of Campylobacter spp. primarily from clinical specimens.  
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  • Primary Listeria Selective Supplement E&O Laboratories Ltd Primary Listeria Selective Supplement (LS0210) is a selective mixture used to supplement Primary Listeria Selective Agar (E&O PP7025) in order to facilitate the isolation of Listeria monocytogenes in foodstuffs and other samples.  
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  • Cefotaxime Selective Supplement E&O Laboratories Ltd Cefotaxime Selective Supplement can be used with MacConkey Agar for the isolation of ESBL (Extended Spectrum Beta-Lactamase) producing organisms with the aim of simplifying the differentiation and presumptive identification of Lactose & Non-Lactose fermenting organisms. It should be noted that AmpC isolates may also be detected on this medium whilst non - ESBL organisms will be inhibited on this medium. Sodium Chloride is omitted from this medium to provide an electrolyte deficient medium that prevents Proteus spp. from spreading.
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  • B.cepacia Selective Supplement E&O Laboratories Ltd Burkholderia Selective Supplement (LS0125) is an antibiotic supplement used to enhance the isolation of Burkholderia cepacia (formerly known as Pseudomonas cepacia).  
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