Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving hydrolase
Reexamination Certificate
2006-06-20
2009-12-08
Prouty, Rebecca E. (Department: 1657)
Chemistry: molecular biology and microbiology
Measuring or testing process involving enzymes or...
Involving hydrolase
C436S178000
Reexamination Certificate
active
07629139
ABSTRACT:
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 anE. coliphytase or anE. coliderived phytase in feed, such as Quantum™ Phytase.
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patent: 2005/0009116 (2005-01-01), Yarnell et al.
Augspurger et al. Efficacy of anE. coliPhytase Expressed in Yeast for Releasing Phytate-Bound Phosphorus in Yound Chicks and Pigs; Journal of Animal Science, vol. 81 (2003) pp. 474-483.
Barrientos et al. Specificity of Hydrolysis of Phytic Acid by Alkaline Phytase From Lily Pollen; Plant Physiology, vol. 106 (1994) pp. 1489-1495.
Sigma-Aldritch Bioultra Biological Buffers, 2008 downloaded Dec. 18, 2008 from: http://www.sigmaaldrich.com/life-science/metabolomics/bioultra-reagents/biological-buffers.html.
Garrett et al., “Enhancing the Thermal Tolerance and Gastric Performance of a Microbial Phytase for Use as a Phosphate-Mobilizing Monogastric-Feed Supplement”, Applied and Environmental Microbiology, May 2004, p. 3041-3046.
Engelen et al., Determination of Phytase Activity in Feed by a Colorimetric Enzymatic Method: Collaborative Interlaboratory Study, Journal of AOAC International, vol. 84. No. 3, 2001.
Basu Shib Sankar
Betts Scott
Nelson Andrea
Ono Makoto
Winslow Stephanie
AB Enzymes GmbH
Corless Peter F.
Edwards Angell Palmer & & Dodge LLP
Martin Paul C.
O'Day Christine C.
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