Phytases are phosphohydrolytic enzymes that initiate stepwise removal of phosphate from
phytate. Simple-stomached species such as swine, poultry, and fish require extrinsic …

Phytate, the mixed salt of phytic acid (myo-inositol hexaphosphate), derived from plant-
sourced feed ingredients is invariably present in practical diets for pigs. Typically, swine …

The histidine phosphatase superfamily is a large functionally diverse group of proteins. They
share a conserved catalytic core centred on a histidine which becomes phosphorylated …

The purpose of this paper is to provide guidance for evaluating the safety of enzyme
preparations used in animal feed. Feed enzymes are typically added to animal feed to …

Global environmental issues and sustainable development call for new technologies for fine
chemical synthesis and waste valorization. Biocatalysis has attracted great attention as the …

A novel phytase was isolated from Aspergillus ficuum NTG-23 with a procedure involving ion-
exchange chromatography on DEAE-cellulose, CM-cellulose and FPLC-gel filtration on …

Phytases are used to improve phosphorus nutrition of food animals and reduce their
phosphorus excretion to the environment. Due to favorable properties, Escherichia coli …

Since the 1980s, phytases (myo-inositol (1, 2, 3, 4, 5, 6) hexakisphosphate
phosphohydrolases) have attracted considerable attention from both scientists and …

Pulsed electric field (PEF) treatment on Aspergillus niger, which is an important source of
several enzymes, was conducted to investigate the effects of different PEF parameters on …

A preferable pullulanase with high thermostability and catalytic activity at pH 4.5–5 is
desired to match with glucoamylase in the starch-saccharification process. However, most of …