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[SANET-MG] moniroring gm food



Trends in Biotechnology
Article in Press
doi:10.1016/j.tibtech.2004.05.002

Is confidence in the monitoring of GE foods justified?

Jack A. Heinemann, 1, 2, 3, Ashley D. Sparrow1, 2 and Terje Traavik1, 3
1 New Zealand Institute of Gene Ecology, University of Canterbury,
Christchurch, New Zealand
2 School of Biological Sciences, University of Canterbury, Christchurch
8020, New Zealand
3 Norwegian Institute of Gene Ecology, Tromsø, Norway
Abstract
Often the limits of detection of genetically engineered organisms (GEOs,
LMOs, GMOs) determine what legislation sets as thresholds of allowable
contamination of the human food chain with GEOs. Many countries have
legislation that is triggered by certain thresholds of contamination.
Importantly, international trade in food and animal feed is becoming
increasingly vulnerable to interruptions caused by the ambiguity GEOs
can create when shipments are monitored at the border. We examine the
tools available for detection. Four key error-generating stages are
identified with the aim of prompting a higher uniform standard of
routine analysis at export and import points. Contamination of the New
Zealand corn crop with GEOs is used as a case study for the application
of monitoring tools and vulnerability to errors. These tools fail to
meet emerging food safety requirements, but some improvements are in
development.

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