Polymerase Chain Reaction

Picture: Campden BRI

UKAS accredits Campden BRI STEC test

By Joseph James Whitworth

Campden BRI’s Shiga toxin-producing E. coli (STEC) testing service has been accredited to the ISO/IEC 17025:2005 standard by the United Kingdom Accreditation Service (UKAS).

© iStock/nikesidoroff

special edition: Rapid Pathogen detection

Parameters to assess performance of dPCR assays

By Joseph James Whitworth

Guidelines and performance parameters for acceptance and validation of digital polymerase chain reaction (dPCR) assays have been proposed.

'It’s very difficult to say carte-blanche what a testing protocol should be – it’s completely dependent on the individual supply chain and supplier,' said Richard Werran, managing director of Cert ID Europe.

New tests needed to detect GM soy, says Cert ID

By Niamh Michail

New GM crops such as CV127 soybean are not detectable with older testing methods, and food producers must update their testing protocols to avoid GM ingredients going undetected and undeclared in the food chain, according to Cert ID Europe.

FSA: 73% of chickens tested positive for Campylobacter

Seward tech used in FSA Campylobacter survey

By Joseph James Whitworth

Seward has revealed how its Stomacher technology was used to prepare samples for the UK Food Standard Agency’s (FSA)’s survey which found 73% of chickens tested positive for Campylobacter.

LLNL physical chemist George Farquar demonstrates how the product can be applied to food to identify it down the chain

Spray on traceability for contaminated food

By Joseph James Whitworth

A method to trace contaminated food back to its source developed by US researchers and a start-up company is targeting adoption from food firms by the end of the year.

Gel-like Image following Cross-Reactivity Tests. Note that the band at 82bp is present exclusively in the Horse control (lane 11) which is indicative of horse DNA  being detected

PCR approaches for detection of horse meat evaluated

By Joseph James Whitworth

An evaluation of the limits of detection (LOD) of three methods has shown that all have the potential and capability of reaching less than 0.1% w/w raw horse meat in a raw beef background.

Exova invested in the MagMax Express 96 extraction system from Life Technologies

Customer demand prompts PCR investment

By Joseph James Whitworth

Customer demand prompted investment in DNA analysis and authentication equipment to test a range of food products, according to Exova.

ECDC: A gel with a high score in all seven parameters

Typing quality of Listeria ‘encouraging’

By Joseph James Whitworth

The quality of typing Listeria by Pulsed Field Gel Electrophoresis (PFGE) in EU labs is ‘encouraging’, according to an external assessment.

horse meat DNA test

Horse meat: demand for lower level testing

By Rachel Arthur

Higher sensitivity meat testing is demanded by the industry in the wake of the horse meat scandal, says Campden BRI, which provides technical, legislative and scientific support to the food and drinks industry.

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