Consulta: subjectFacets:"Phytase formation"
Registros recuperados: 2
Data/hora: 13/06/2024 08:28:08

A simplified model for A. Niger FS3 growth during phytase formation in solid State fermentation
Provedor de dados: 52
Autores: Spier,Michele Rigon; Letti,Luiz Alberto Junior; Woiciechowski,Adenise Lorenci; Soccol,Carlos Ricardo.
A simplified model to describe fungal growth during citric pulp fermentation for phytase production was described for the first time. Experimental data for biomass growth were adjusted to classical mathematical growth models (Monod and Logistic). The Monod model predictions showed good agreement with the experimental results for biomass concentration during 96 hours of fermentation. Parameters such as yield of biomass from oxygen (Y X/O), maintenance coefficient (m) and specific growth rate (µ) were compared showing a good correlation between the data and the model. An alternative method for biomass determination in this process was developed since a great correlation was found between biomass growth and enzyme formation.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Monod Model; Logistic model; Modelling; Fungal growth; Phytase formation; Citric pulp.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700020

Bacterial phytase: potential application, in vivo function and regulation of its synthesis
Provedor de dados: 58
Autores: Konietzny,Ursula; Greiner,Ralf.
The stepwise release of phosphate from phytate, the major storage form of phosphate in plant seeds and pollen, is initiated by a class of enzymes that have been collectively called phytases. The classification is solely due to the in vitro capability of these enzymes to accept phytate as a substrate. Phytases have been studied intensively in recent years because of the great interest in such enzymes for reducing phytate content in animal feed and food for human consumption. They have a wide distribution in plants, microorganisms, and in some animal tissues. Due to several biological characteristics, such as substrate specificity, resistance to proteolysis and catalytic efficiency, bacterial phytases have considerable potential in commercial applications....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacterial phytase; Biotechnological application; Dephosphorylation; Occurrence; Phytase formation; Phytate.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822004000100002