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Documenti fondamentali

P9792

Sigma-Aldrich

Phytase from Aspergillus ficuum

lyophilized powder, 1-5 units/mg solid (as phosphatase activity)

Sinonimo/i:

3-Phytase, myo-Inositol-hexakisphosphate 3-phosphohydrolase

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About This Item

Numero CAS:
Classificazione EC (Enzyme Commission):
Numero MDL:
Codice UNSPSC:
12352204

Stato

lyophilized powder

Attività specifica

1-5 units/mg solid (as phosphatase activity)

Temperatura di conservazione

−20°C

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Qualità

May contain glucosidases and phosphatases.

Definizione di unità

One unit will liberate 1.0 μmole of inorganic P from 4.2 × 10-2 M Mg·K phytate per min at pH 2.5 at 37 °C.

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)


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G C Irving et al.
Journal of bacteriology, 112(1), 434-438 (1972-10-01)
The fungus Aspergillus ficuum NRRL 3135 is known to produce an extracellular nonspecific orthophosphoric monoester phosphohydrolase (EC 3.1.3.2) with a pH optimum of 2.0, as well as an extracellular myo-inositol hexaphosphate phosphohydrolase (EC 3.1.3.8; phytase) with pH optima of 2.0
L Jermutus et al.
Journal of biotechnology, 85(1), 15-24 (2001-02-13)
Thermostability is a key feature for commercially attractive variants of the fungal enzyme phytase. In an initial set of experiments, we restored ionic interactions and hydrogen bonds on the surface of Aspergillus terreus phytase, which are present in the homologous
A Sajidan et al.
Applied microbiology and biotechnology, 65(1), 110-118 (2004-01-17)
Klebsiella sp. strain ASR1 isolated from an Indonesian rice field is able to hydrolyse myo-inositol hexakis phosphate (phytate). The phytase protein was purified and characterised as a 42 kDa protein accepting phytate, NADP and sugar phosphates as substrates. The corresponding
R L Payne et al.
Poultry science, 84(2), 265-272 (2005-03-04)
Research with corn-soybean meal diets was conducted to compare phytase sources in commercial broilers. A Ca to nonphytate P (nPP) ratio of 2.5:1 was maintained in all diets. Experiments 1 and 2 were conducted from d 4 to 13 (experiment
Duane F Berry et al.
Bioorganic & medicinal chemistry letters, 15(12), 3157-3161 (2005-05-10)
A novel approach for measuring phytase activity is presented. We have developed a new chromophoric substrate analog of phytic acid, 5-O-[6-(benzoylamino)hexyl]-d-myo-inositol-1,2,3,4,6-pentakisphosphate that permits direct measurement of the phosphate ester bond-cleavage reaction using HPLC. This compound, along with its dephosphorylated T-phosphatidylinositol

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