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Industrial Analytical Instrumentation

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Life sciences and clinical instrumentation

Seward Stomacher® used for hygiene monitoring and biosecurity

Seward Ltd., manufacturers of the world leading range of Stomacher® paddle blenders and Stomacher® accessories used in sample preparation for microbiological analyses, have highlighted the highly effective use of its Stomacher technology in combination with sponge swabs for hygiene monitoring and biosecurity applications.

Hygiene monitoring in food and pharmaceutical production facilities and clinical environments requires simple sampling techniques with excellent microbial recovery rates across a spectrum of different species. A recent study [1] has confirmed the effectiveness of the combined sponge swab and Stomacher sampling methodology for sampling a large surface area.
Image: the Stomacher® 400 Circulator.

This popular sampling method utilises sponge swabs pre-dosed with buffer to swab a surface and then, to recover the micro flora, the sponge swabs are processed in the Stomacher® 400 Circulator. A number of suppliers offer pre-manufactured devices such as 3M® and Technical Services Consultants Ltd, which work very effectively in Stomacher products. Various different approaches can be applied, processing either pooled samples in the Stomacher® 400 or individual swabs in the Stomacher® 80 Biomaster.   

Due to the efficacy of the Stomacher and sponge swab combination, it has also been adopted in more critical fields such as biosecurity. Security services on both sides of the Atlantic have recently adopted the technique to detect and monitor the potential spread of weaponised bacterial contaminates such as
Bacillus anthracis.

The effectiveness of the sponge and Stomacher technique over the swab technique for sample collection is demonstrated in a recent paper [1] concerning the clinical environment and the monitoring of
Acinetobacter baumannii. The sponge and Stomacher technique allows for a greater surface area to be tested than achievable with a swab head. This also means that the sponge method delivers greater sensitivity.

Reference 1: Thom K.A. et al.. Comparison of swab and sponge methodologies for identification of Acinetobacter baumannii from the hospital environment. Journal of Clinical Microbiology 2012, 50(6):2140.

Seward Limited in profile
Seward manufactures the world leading range of Stomacher® paddle blenders and Stomacher® accessories used in sample preparation for microbiological analyses. The company has been manufacturing and developing the world renown and patented Stomacher® Lab Blender for 40 years. The original and still regarded as the best, over 8 million food samples a day are prepared on Stomacher® 400 paddle blender units around the world.

In addition to sample preparation for food safety analyses, within the bioscience market the new developments of the Stomacher® 80 and micro 80 are proving invaluable for safe and efficient sample processing. The Stomacher® 3500 has established itself as the instrument of choice for preparing samples for the new pathogen test protocols requiring jumbo size samples.

The company is based in Worthing, West Sussex, UK with subsidiaries in the USA and Singapore. All Seward machine products are manufactured within the UK and 1 of its 3 worldwide Stomacher® bag manufacturing operations is also UK-based. This ensures control of quality and price to deliver excellent value to global trading partners and laboratory customers.

Seward Limited continues to develop the product range, now with 3 patents to its credit.  Stomacher® is the most highly referenced brand name in food safety and life science sample preparation in scientific publications. The company also assists customers with method development through reference searches and sample evaluations within its own development laboratory.

For further information, view website: www.seward.co.uk

Seward introduces online 'how to' video series

Seward Limited, manufacturer and developer of the world leading, patented Stomacher® Laboratory Paddle Blender range, offer a 'helpful clips' online video series that can be accessed online at: www.youtube.com/user/SewardLimited1 or via: www.seward.co.uk/video.htm This collection of 'how to' videos currently includes instruction on the stress-free opening of Seward Micro Bags, as well as a guide to the easy cleaning of Seward's Stomacher 400 laboratory blender.

The step by step Stomacher 400 Circulator cleaning video guide demonstrates how simple it is to clean this gold standard paddle blender that enables enhanced recovery of microorganisms. Its removable door enables easy access to the paddle chamber; furthermore, due to its quality of build and durability of components, the Stomacher is extremely robust. This enables the user to thoroughly scrub and hose down the inside of the machine to ensure meticulous cleaning and eliminate all risk of microbial contamination.

For further information, view website: www.seward.co.uk 
Refer to page 746

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