Food, Water & Environmental Bottled & Bagged Media List

Bottled & Bagged ready to use culture media for the food, water and environmental microbiological testing laboratories: Broths, agars and diluents are dispensed into various containers and volumes using both manual and fully automated microbiology laboratory equipment production lines. An extensive range of containers/volumes and microbiological media formulations are on offer to meet your individual requirements.

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  • Alkaline Peptone Water is generally used as an enrichment medium in the isolation of Vibrio spp. from faeces. The high pH of the medium inhibits most enteric organisms for at least 24 hours. The medium is heavily inoculated with faeces and after not more than 8 hours incubation a loopful from the top of the medium is sub cultured onto TCBS Agar. This enrichment medium is also used for food and water testing.
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  • Bile Aesculin Medium is generally used for the differentiation and presumptive identification of Group D streptococci (enterococci). Enterococci hydrolyse aesculin forming, amongst other products, aesculetin which in turn combines with Ferric ammonium citrate producing a dark brown or black complex. The presence of Bile salts in the medium inhibits gram positive organisms other than enterococci. The medium can also be used for the presumptive identification of certain organisms within the Enterobacteriaceae group such as Klebsiella spp., Enterobacter spp., etc.
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  • This medium is used to detect and/or confirm the presence of coli-aerogenes group of organisms in water, food and dairy laboratories. Bile and Brilliant Green are included in the medium to inhibit gram positive organisms while the coli-aerogenes organisms are identified by the formation of gas during the fermentation of Lactose. The medium can also be used for the confirmation of Escherichia coli by incubating at 44°C.
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  • Enterobacteriaceae Enrichment Broth E.E. Broth is recommended as an enrichment medium when examining food and feedstuffs for Enterobacteriaceae. It is a modification of Brilliant Green Bile Broth, with an improved buffering capacity to encourage early growth and prevent autosterilization. E.E. Broth uses glucose instead of lactose to make the medium a test for all enterobacteria including non lactose fermenting organisms.
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  • A very nutritious isotonic general purpose medium with a low concentration of Glucose to stimulate early growth, Brain Heart Infusion Broth is suitable for the isolation of most micro-organisms including many fastidious organisms and, with enrichment as appropriate, is suitable as a base for blood culture medium. A phosphate buffer is incorporated to help neutralise any acids produced as a result of Glucose utilisation and thus maintain viability of the organisms. NB: Organisms that produce large amounts of acid in the medium may overwhelm the buffering system and as a result ‘auto-sterilise’ the culture.
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  • A pre-enrichment medium designed to help sub-lethally damaged Salmonella spp. recover before introducing them into a selective medium. This non-selective, nutritious medium is free from inhibitors and is well buffered to maintain the pH at 7.0 for the incubation period according to ISO 6579 (2002). ≤
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  • A pre-enrichment medium design to help sub-lethally damaged Salmonella spp. recover before introducing them into a selective medium. This nutrient medium is free from inhibitors and is well buffered to maintain the pH at 7.2 for the incubation period.
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  • Columbia Agar is a nutritious general-purpose basal medium capable of supporting the growth of most micro-organisms, including many fastidious organisms that do not require blood. However when further enriched with Sterile Blood, which can be “chocolated” if required, the medium is generally used for the isolation of most clinically significant pathogens.  The medium can be made selective for various groups of organisms by the addition of a range of antimicrobial supplements. This formulation complies with the Harmonized USP/EP/JP.
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