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Wizard® Magnetic DNA Purification
System for Food: Part II. Semi-Automated DNA Isolation and Analysis of GMO Foods
Terri Grunst, B.S. and Dan Kephart, Ph.D.
Promega Corporation
The widespread demand for labeling of foodstuffs containing genetically modified
organisms (GMO) has created a need for accurate GMO testing methods. One recommended
method requires the rapid isolation of DN from many different sources. Promega has
developed the Wizard® Magnetic DNA Purification System for Food, which allows
isolation of DNA from foodstuffs. The DNA is then suitable for subsequent genetic
analysis. This article demonstrates the use of a semi-automated method for isolation of
genomic DNA from soy flour and cornmeal. The purified DNA was analyzed using the Biosmart
Allin 1.0 GMO Screening System that is now available through Promega. This system
identifies GMO through PCR amplification and is provided with controls for soy and corn
products.
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