Patent 7629139 was granted and assigned to AB Enzymes on December, 2009 by the United States Patent and Trademark Office.
This invention relates to methods of the detection of enzymatically active enzymes in feed added in the pre-pelleting stage. Further, this invention relates to the field of detecting thermotolerant enzymes added to feed in the pre-pelleting stage. In particular, the invention relates to the detection of a phytase enzyme, in particular an E. coli phytase or an E. coli derived phytase in feed, such as Quantum™ Phytase.