Enhancement of invertase production by Aspergillus niger OZ-3 using low-intensity static magnetic fields.
Prep Biochem Biotechnol
; 43(2): 177-88, 2013.
Article
en En
| MEDLINE
| ID: mdl-23302105
ABSTRACT
The aim of this study is to investigate the effect of low-intensity static magnetic fields (SMFs) on invertase activity and growth on different newly identified molds. The most positive effect of SMFs on invertase activity and growth was observed for Aspergillus niger OZ-3. The submerged production of invertase was performed with the spores obtained at the different exposure times (120, 144, 168, and 196 hr) and magnetic field intensities (0.45, 3, 5, 7, and 9 mT). The normal magnetic field of the laboratory was assayed as 0.45 mT (control). Optimization of magnetic field intensity and exposure time significantly increased biomass production and invertase activity compared to 0.45 mT. The maximum invertase activity (51.14 U/mL) and biomass concentration (4.36 g/L) were achieved with the spores obtained at the 144 hr exposure time and 5 mT magnetic field intensity. The effect of low-intensity static magnetic fields (SMFs) on invertase activities of molds was investigated for the first time in the present study. As an additional contribution, a new hyper-invertase-producing mold strain was isolated.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Aspergillus niger
/
Microbiología del Suelo
/
Proteínas Fúngicas
/
Beta-Fructofuranosidasa
/
Campos Magnéticos
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Prep Biochem Biotechnol
Asunto de la revista:
BIOQUIMICA
/
BIOTECNOLOGIA
Año:
2013
Tipo del documento:
Article
País de afiliación:
Turquía