What is fungal phytase?
Fungal phytases are histidine acid phosphatases, a subclass of acid phosphatases, which catalyse the hydrolysis of phytic acid resulting in the release of phosphate moieties and thus mitigate its antinutritional properties. The fungal phytases are high molecular weight proteins ranging from 35 to 500 kDa.
What foods contain phytase?
Foods With Phytic Acid
- Beans. Most beans and legumes contain a high amount of phytic acid.
- Seeds. When a plant is ripening, phytate rapidly accumulates in its seeds.
- Nuts. Nuts naturally contain a high amount of phytic acid.
- Grains. Grains contain phytic acid, but only if they haven’t been processed.
What is phytase in poultry?
Microbial phytase is the most commonly used exogenous enzyme in the feed for monogastric animals. Phytase can reduce the antinutritional effect of phytate and improve the digestibility of phosphorous (P), calcium, amino acids and energy, as well as reduce the negative impact of inorganic P excretion to the environment.
Where is phytase found in the human body?
Phytase activity was found in human small intestine at low values (30 times less than that in rat tissue and 1000-fold lower than alkaline phosphatase in the same tissue). The activity was greatest in the duodenum and lowest in the ileum.
Does Thermomyces lanuginosus produce β-xylanase?
The non-cellulolytic Thermomyces lanuginosus is a widespread and frequently isolated thermophilic fungus. Several strains of this fungus have been reported to produce high levels of cellulase-free β-xylanase both in shake-flask and bioreactor cultivations but intraspecies variability in terms of β-xylanase production is apparent.
Is Thermomyces lanuginosus a cellulolytic fungus?
Thermomyces lanuginosus: properties of strains and their hemicellulases The non-cellulolytic Thermomyces lanuginosus is a widespread and frequently isolated thermophilic fungus.
How many hemicellulose-degrading enzymes are there from T lanuginosus?
Only one other hemicellulose-degrading enzyme from T. lanuginosus has been purified and characterised. A purified extracellular α-galactosidase from T. lanuginosus strain IMI 158749 was found to have a molecular mass of 57 kDa and an isoelectric point of 5.2 [49].
What is the activity of T lanuginosus xylanase at high temperatures?
The xylanase of T. lanuginosus strain SSBP retained its full activity at temperatures up to 65°C and 45% of its activity after 30 min at 100°C and also retained its total activity after 14 days at 60°C [9].