40ml Amber Glass (Borosilicate) Bottle with Blue PP Cap &

Aurora Scientific

40ml Amber Glass (Borosilicate) Bottle with Blue PP Cap & Septum Dosed Na2S2O3

Quantity

  • Aurora Scientific 40mL Amber Glass (Borosilicate) Bottle with Blue Polypropylene Cap with Septum Dosed with Sodium Thiosulphate
  • Box of 100
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    Aurora Scientific 40mL Amber Glass (Borosilicate) Bottle with Blue Polypropylene Cap with Septum Dosed with Sodium Thiosulphate

    Box of 100

    AS-AS500MLAGW-WC-L

    Data sheet

    Industries
    Beverage Production
    Building and Construction
    Environmental
    Farming
    Food Production and Safety
    Manufacturing
    Scientific Industries
    Water Analysis

    Our standard delivery is 3-5 working days (where products are available) Monday to Friday, excluding public holidays when you order by 2pm. Details of our returns and cancellation policy can be found in our Returns Policy & Section 11 of our Terms and Conditions. For more information please contact us on 01924 444 577 or Email Us.

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    Availability: Out of stock
    Soy Peptone is for use in preparing microbiological culture media in a laboratory setting, and is not intended for use in the diagnosis of disease or other conditions in humans. Soy peptone is a rich source of nutrients with a high carbohydrate content. Most organisms will grow rapidly in this peptone but some bacteria will produce high levels of acid leading to auto-sterilization unless an adequate buffering system is incorporated.

    Esco Frontier® Acela™ XP (EFA-XP) is an explosion-proof ducted fume hood that provides the highest level of chemical containment and almost no possibility of sparks in the work zone.* This laboratory containment device is suitable for applications or rooms which have the presence of highly flammable or explosive gases and vapours, especially in the Oil & Gas industries.

    *Disclaimer: The Frontier Acela® XP ducted fume hood is not designed or independently tested to comply to any Explosion-Proof Rating Standards such as ATEX/IECex at system level. If required, the user is responsible for certification of the fume hood according to the ATEX/IECex rating.

    *This cabinet requires an external blower (sold separately)

    Benefits

    • Triple layer for maximum robustness and durability
    • Ceramic worktop is ideal for dealing with chemicals at high temperatures.
    • Sash Angled Front with 5° slope minimizes glares and reflections allows users to work further into the hood without strain
    • The unique Hot Zone Baffle design draws most contaminants back in single pass displacement of the air
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    Xylose Lysine Deoxycholate (XLD) Agar (ISO) is a selective agar for the detection of Salmonella spp. in food, animal feed and in environmental samples from the food production area as described in ISO 6579-1:2017. Xylose Lysine Deoxycholate (XLD) Agar (ISO) is not intended for use in the diagnosis of disease or other conditions in humans. A selective, diagnostic agar for the detection of Salmonella spp. in food, animal feed and in environmental samples from the food production area as described in ISO 6579-1:2017. Originally formulated by Taylor to differentiate enteric pathogens, the agar is widely used as the preferred differential medium for Salmonella spp. The medium is void of peptones but instead uses yeast extract as a carbon, nitrogen and vitamin source and xylose, lactose and sucrose are fermentable carbohydrates. Salmonella are able to ferment xylose to produce acid but not lactose or sucrose. When the xylose is exhausted Salmonella will decarboxylate lysine shifting the pH back to neutral. At near neutral pH, Salmonella can reduce sodium thiosulfate producing hydrogen sulfide which creates a complex with ferric ammonium citrate to produce black or black centred colonies. Other organisms are able decarboxylate lysine but acid production from the fermentation of lactose and sucrose keeps the pH too acidic for H2S production. Selectivity is achieved through the incorporation of sodium deoxycholate and phenol red acts as a pH indicator. According to ISO 6579-1:2017, subculture is performed separately from both Rappaport-Vassiliadis medium with Soya (RVS) and Muller-Kauffmann tetrathionate-novobiocin (MKTTn) broth. This medium conforms to the performance and formulation requirements of ISO 6579-1:2017.

    Dextrose Tryptone Agar

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    Dextrose Tryptone Agar is used for isolation of mesophilic or thermophilic spoilage microorganisms from food and is not intended for use in the diagnosis of disease or other conditions in humans. Dextrose Tryptone Agar evolved from research by Williams, while studying the cultivation and enumeration of thermophilic bacteria caused by “flat-sour” spoilage of canned foods. In the 1930’s, the National Canners Association specified the use of Dextrose Tryptone Agar for isolating “flat sour” organisms from food products. “Flat sour” spoilage of canned foods is caused by Bacillus coagulans (Bacillus thermoacidurans). Bacterial growth results in a 0.3 – 0.5 drop in pH, while ends of the can remain flat. B. coagulans is a soil microorganism, found in canned tomato products and dairy products. Conditions favorable for organism growth can result in spoilage of food products. Dextrose Tryptone Agar can be used to isolate other food spoilage bacteria including mesophilic, aerobic spore-formers and thermophilic “flat sour” spore-formers such as B. stearothermophilus.