Effects of polyurethane matrices on fungal tannase and gallic acid production under solid state culture.
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.
Trevino
Lucia
L
Department of Food Research, Autonomous University of Coahuila, Saltillo, Coahuila 25000, Mexico.
Contreras-Esquivel
Juan C
JC
Rodríguez-Herrera
Raul
R
Aguilar
Cristóbal Noé
CN
D001234:Aspergillus niger / Q000378:metabolism*; D019149:Bioreactors / Q000382:microbiology*; D002265:Carboxylic Ester Hydrolases / Q000378:metabolism*; D018929:Cell Culture Techniques / Q000379:methods*; D005707:Gallic Acid / Q000378:metabolism*; D011140:Polyurethanes / Q000737:chemistry*
D011140:Polyurethanes; D005707:Gallic Acid; D002265:Carboxylic Ester Hydrolases; C022711:tannase