Related Experiment Video
Updated: Jul 11, 2026

Design of Solid-State Fermentation Systems for Polymer Hydrolytic Extracellular Enzyme Production by Filamentous Fungi
Published on: June 6, 2025
Effects of polyurethane matrices on fungal tannase and gallic acid production under solid state culture
Lucia Trevino1, Juan C Contreras-Esquivel, Raul Rodríguez-Herrera
1Department of Food Research, Autonomous University of Coahuila, Saltillo, Coahuila 25000, Mexico.
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.
Related Concept Videos
Production of Antibiotics
Production of Alcohol
Production of Organic Acids
Bioreactor Controls-III

