Characterization of a Mutant Buttiauxella Phytase using Phytic Acid and Phytic Acid-Protein Complex as Substrates

Published on: 09/01/2014
Author/s : Shukun Yu1,3*, Marie Fjordside Kvidtgaard1,2, Mai Faurschou Isaksen1, and Soren Dalsgaard1 (1 Enzyme R&D, DuPont Industrial Biosciences, Aarhus, Denmark; 2 Department of Food Sciences, Aarhus University, Tjele, Denmark ;3 Department of Biotechnology, Lund University, Lund, Sweden)

1. Introduction Phytase is the enzyme that hydrolyzes phytic acid and its salt phytate (myo-inositol hexakisphosphate, IP6), resulting in the formation of inositol pentakis-, tetrakis-, tris-, bis- and monophosphate (IP5-IP1) in a stepwise manner and five inorganic phosphates (Pi) (Skoglund et al., 1998; Greiner et al., 2000). Inclusion of phytase in animal feed not only makes the phytate-bound p...

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Maheswar Rath Maheswar Rath
BVSc &AH,MVSc &AH,poultry science, Ph.D. Poultry science
September 1, 2014
nice to see the findings in this article on alternative bacterial phytase? Ok if it is expected to support birds for available phosphorous and protein and mineral mobilization the by making feed still economical then it will be wonderful. Is there any data to predict how much phytase unit can make available how much unit available phosphorous and unit of protein and units of minerals? Or any prediction equation is possible to develop on this issue so as to think while formulation of poultry feed is planned?
Shukun Yu Shukun Yu
Specialist in Animal Nutrition
November 18, 2015
For a general and quick understanding of protein-phytic acid interactions and the role of microbial phytases in hydrolyzing the phytate in such complex, please watch our 1min Youtube video:
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