Worthing, UK –– Seward Ltd., manufacturer of the world leading range of original Stomacher® paddle blenders and accessories used in sample preparation for microbiological analysis, confirms the use of its Stomacher® in USDA meat speciation protocols [1]. Following recent high profile meat provenance scandals, Seward has noted an increase in enquiries on the application of its technology for the delivery of contamination free, viable antigen samples.

The complexity and globalisation of the food industry makes the management of the food chain from farm to fork increasingly difficult. The contamination of meat ingredients with unintended species in the UK has been very costly in reputations and profits. The need for food companies to control their ingredients suppliers has consequently increased.

Meat speciation has been carried out for a number of years on cooked and uncooked samples using ELISA based techniques.

The Stomacher® plays an important role in both protocols for the extraction of the required antigens for subsequent analysis. The USDA method [1] applies two ELISA techniques supplied by ELISA-TEK™ for cooked meats. Raw meats are tested using DTEK™ Immunosticks or Tepnel Biosystems F.A.S.T. Immmunosticks. Positive samples are cooked and retested for confirmation using ELISA-TEK™.

The sensitivity of the test protocol requires that the samples be handled with the utmost care to prevent cross contamination in the laboratory. The Stomacher® bag prevents this risk by containing the sample throughout the preparation process. The paddle action of the Stomacher® produces a reproducible sample without any heat or shearing damage which could potentially damage cell components.

Stomacher® has a wide range of applications in food chemistry, as well as its traditional role in microbiology. Any application where rotating blades are unsuitable and potentially harmful to the sample under test the Stomacher® provides an alternative, bringing with it all the advantages of eliminating cross contamination via containment.

Seward’s sample preparation experts can assist in finding suitable references and method recommendations. More information on Stomacher® applications can also be sourced from Seward’s online Resource Centre at www.seward.co.uk/resources.

For more information on Seward, please visit www.seward.co.uk.

Reference:

1) Identification of Animal Species in Meat and Poultry Products. USDA Laboratory Guidebook (MLG 17.02). Revision 2/10/2005.

Editors’ notes

About Seward Limited – www.seward.co.uk

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.

The original and still the best. The Stomacher® – a Seward product trade name.

Seward contact details:

Europe, Middle East and ROW: +44 (0) 1903 823077; info@seward.co.uk

US & Canada: +1 772 621 8220; info@sewardusa.com

Asia and Pacific: +65 6519 2283; stevenlim@seward.co.uk