Phytase Description:
Phytase
enzyme produced by submerged Fermentation of Aspergillus spp
Need
of Phytase
 Large
amount of research show that phytate or phytic acid in monogastric animal's feeds
has a strong anti-nutrition effect the reason being: Monogastric animals lack
phytate degrading enzyme in their digestive tract so they are unable to utilize
the phosphorus of phytate;
Because the phosphoric acid group is negatively
charged, it can strongly chelate with cations such as Ca2+, Mg2+, Zn2+, Cu2+,
Mn2+, Fe2+ and K+ to form insoluble salts therefore influencing the absorption
and digestion of these minerals by animals and reducing their bio-availability;
The
phosphoric acid group of phytate can also integrate with cation groups on protein,
amino acids, starch and lipids in feedstuff to reduce their solubility therefore
influencing the digestibility of these nutrients by animals and poultry.
Phosphoric
acid can also integrate with protein in animal body such as amylase, pepsin, trypsin
and acid phosphorylase to reduce their activity therefore influencing the nutrient
utilization of whole diet;
Phytate has a negative effect on vitamin utilization
therefore animals fed with feeds of high phytate content often display signs such
as off-feed, emaciation, retarded growth and reproduction failure.
Phytate
also forms complexes with proteins, digestive enzymes and minerals, and as such
is considered to be an anti-nutritional factor. Phytase frees the phosphorus contained
in cereals and oilseeds, and by breaking down the phytate structure also achieves
the release of other minerals such as calcium and magnesium, as well as proteins
and amino acids, which have become bound to the phytate. Thus, by releasing bound
phosphorus in feed ingredients of vegetable origin, phytase makes more phosphorus
available for bone growth, and reduces the amount excreted into the environment.
Use of the enzyme also has the added benefit of helping to conserve natural resources
by eliminating the need to supplement feeds with sources of digestible inorganic
phosphorus. There are two phytases as classified by Nomenclature Committee of
the International Union of Biochemistry and Molecular Biology (NC-IUBMB) In consultation
with the IUPAC-IUBMB Joint Commission on Biochemical Nomenclature (JCBN):
EC
3.1.3.8
Recommended name: 3-phytase Systematic
name:
myo-inositol-hexakisphosphate 3-phosphohydrolase other name(s): phytase;
phytate 3-phosphatase CAS registry number: 37288-11-2 and EC
3.1.3.26
Recommended name: 6-phytase Systematic
name:
myo-inositol-hexakisphosphate
6-phosphohydrolase other name(s): phytase; phytate 6-phosphatase CAS registry
number: 9001-89-2 SEB Phytase is 6 Phytase.
Mode
of action
Phytic acid and phytate are main storage form of phosphorus
in plants. 
Application and Advantages: - Reduce
the supplement of costly inorganic phosphorus in feeds, reduce the Feed cost,
and increase the profit of both feed companies and farms. The supplement t of
phytase can increase the utilization efficiency of phytate-phosphorus by 20-40%
in pig feeds and 35-58% in chicken and duck feeds.
- Reduce
the total phosphorus content in livestock/poultry feeds, and reduce the excreted
phosphorus through manure by 40-60%, thus reducing evironmental pollution.
- Increases
the utilization efficiency of minerals, protein and other nutrients, and improves
the production performance of livestock/poultry.
-
Increases the space in feed formula to improve feed quality.
- Reduces
the risk of heavy metal poisoning and microbial pollution caused by Dicalcium
phosphate and bone meal, respectively
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