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Phytase: Sources, preparation and exploitation
Folia Microbiologica, 1998This review deals with phytase (myo-inositol hexakisphosphate phosphohydrolase) and covers microbiological sources, phytase occurrence in plants and animals, its purification, physico-chemical and molecular properties. Protein engineering of phytase and potential enzyme applications are discussed.
Dvořáková J
exaly +3 more sources
Diversity of Phytases in the Rumen
Microbial Ecology, 2006Examples of a new class of phytase related to protein tyrosine phosphatases (PTP) were recently isolated from several anaerobic bacteria from the rumen of cattle. In this study, the diversity of PTP-like phytase gene sequences in the rumen was surveyed by using the polymerase chain reaction (PCR).
Brenda A, Nakashima +3 more
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Microorganisms as phytase producers
Microbiology, 2012Replenishing of the stores of inorganic phosphate is among the most urgent environmental problems. In soil, phosphorus within inorganic compounds is mostly (over 80%) present as insoluble, phytic acid-based conglomerates. Phytates are strong chelating agents, binding the cations of bivalent metals, as well as peptides and low-molecular metabolites into
A D, Mukhametzianova +2 more
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The phytases. I. Lysolecithin-activated phytase from wheat bran
Biochimica et Biophysica Acta (BBA) - Enzymology, 19711. 1. Myo-Inositol hexaphosphate phosphohydrolase (EC 3.1.3.8, phytase) from wheat bran may be separated by DEAE-cellulose into two fractions (F1 and F2) which yield different substrate degradation patterns. 2. 2. Fraction F1 contains a lipid activator whose properties are consistent with those of lysolecithin.
P E, Lim, M E, Tate
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Advances in immobilization of phytases and their application
Bioresource Technology, 2023The review describes the advances in the phytase immobilization for the past decade and their biotechnological applications. Different approaches for phytase immobilization are described including the process using organic and inorganic matrices and microbial cells, as well as nanostructures of various nature.
Svetlana Yu, Filippovich +3 more
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Toxicological Review, 2018
The preparation “Phytase” is low-toxic, does not have an irritant and sensitizing effect. The threshold of acute inhalation of the preparation is set at the level of 28.0 mg/m3 (on phytase) according to the change in the function of the nervous system and kidneys.
N. I. Sheina +4 more
openaire +1 more source
The preparation “Phytase” is low-toxic, does not have an irritant and sensitizing effect. The threshold of acute inhalation of the preparation is set at the level of 28.0 mg/m3 (on phytase) according to the change in the function of the nervous system and kidneys.
N. I. Sheina +4 more
openaire +1 more source
Research status of Bacillus phytase
3 Biotech, 2021Phytic acid is abundant in seeds, roots and stems of plants, it acts as an anti-nutrient in food and feed industry, since it affects the absorption of nutrients by humans and monogastric animals. Furthermore, phosphorus produced through its decomposition by microorganisms can cause environmental pollution.
Zhao T. +5 more
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Folia Microbiologica, 1994
132 microorganisms, isolates from soil and decayed fruits, were tested for phytase production. All isolates intensively producing active extracellular phytase were of fungal origin. The most active fungal isolates with phytase activity were identified as Aspergillus niger. At the end of the growth phase, the extracellular phytase activity produced by A.
O, Volfová +3 more
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132 microorganisms, isolates from soil and decayed fruits, were tested for phytase production. All isolates intensively producing active extracellular phytase were of fungal origin. The most active fungal isolates with phytase activity were identified as Aspergillus niger. At the end of the growth phase, the extracellular phytase activity produced by A.
O, Volfová +3 more
openaire +2 more sources