Patent 7629118 was granted and assigned to Nisshin Seifun Group on December, 2009 by the United States Patent and Trademark Office.
A method of testing the presence/absence of wheat in a food by performing PCR with the use of primers which have been designed on the basis of data obtained from a part of a gene of wheat. This method is highly useful in detecting a trace component contained in a food or identifying a harmful allergen of wheat.