E&O supply freshly harvested aseptically collected Donor Horse Blood and Sheep Blood. These blood products are oxygenated and supplied in both Bottles and Bags for convenient asceptical addition to culture media. Plasma products can be fractionated after the addition of a range of anticoagulants: Citrate, Alsevers, Sodium Oxolate, Heparin and EDTA.

All donor animal blood products are harvested from Stress Free Animals with guaranteed PCV’s and free from any microbiological inhibitors. The most common use is for the manufacture of Blood Agar Plates. Dehydrated culture media (Columbia Agar) is added to deionised water and then sterilized at 121°C. The molten agar is then cooled to 42°C, fresh Horse Blood or Sheep Blood is then added at a 5% or 7% concentration before being poured into petridishes.

Oxytetracycline

Oxytetracycline (100mgs/L) Selective Supplement
E&O Laboratories Ltd Oxytetracycline Selective Supplement can be used with a glucose, yeast or maltose extract based agar for selective isolation of Yeasts and Moulds from a variety of sample types. Due to the near neutral pH of the medium, Oxytetracycline is added to reduce the risk of bacterial growth when processing materials that may be more heavily contaminated.
Media using oxytetracycline as the selective agent is based on the formulation developed by Mossel et al. who stated that the use of this antibiotic in a medium with a neutral pH gave increased counts of yeasts and moulds from a variety of foodstuffs compared with media which relied on a low pH to suppress bacterial growth.

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