Effects of polyurethane matrices on fungal tannase and gallic acid production under solid state culture.
- Author:
Lucia TREVINO
1
;
Juan C CONTRERAS-ESQUIVEL
;
Raul RODRÍGUEZ-HERRERA
;
Cristóbal Noé AGUILAR
Author Information
1. Department of Food Research, Autonomous University of Coahuila, Saltillo, Coahuila 25000, Mexico.
- Publication Type:Journal Article
- MeSH:
Aspergillus niger;
metabolism;
Bioreactors;
microbiology;
Carboxylic Ester Hydrolases;
metabolism;
Cell Culture Techniques;
methods;
Gallic Acid;
metabolism;
Polyurethanes;
chemistry
- From:
Journal of Zhejiang University. Science. B
2007;8(10):771-776
- CountryChina
- Language:English
-
Abstract:
The influence of the physical structure of polyurethane matrix as a support in a solid state culture in tannase production and gallic acid accumulation by Aspergillus niger Aa-20 was evaluated. Three different polyurethane matrices were used as the support: continuous, semi-discontinuous and discontinuous. The highest tannase production at 2479.59 U/L during the first 12 h of culture was obtained using the discontinuous matrix. The gallic acid was accumulated at 7.64 g/L at the discontinuous matrix. The results show that the discontinuous matrix of polyurethane is better for tannase production and gallic acid accumulation in a solid state culture bioprocess than the continuous and semi-discontinuous matrices.
