Invertase production by Aspergillus niger in submerged and solid-state fermentation |
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| Authors: | SJ Romero-Gómez C Augur G Viniegra-González |
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| Institution: | (1) Departamento de Biotecnología, Universidad Autónoma Metropolitana-Iztapalapa, Av. Michoacán y La Purísima, México, D.F., CP 09340, México;(2) IRD (Institut de Récherche pour le Dévélopement)-México, Cicerón 609, Los Morales, México, D.F., CP 11530, México |
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| Abstract: | Three Aspergillus nigerstrains were grown in submerged and solid state fermentation systems with sucrose at 100 g l–1. Average measurements of all strains, liquid vs solid were: final biomass (g l–1), 11 ± 0.3 vs 34 ± 5; maximal enzyme titres (U l–1) 1180 ± 138 vs 3663 ± 732; enzyme productivity (U l–1h–1) 20 ± 2 vs 87 ± 33 and enzyme yields (U/gX) 128 ± 24 vs 138 ± 72. Hence, better productivity in solid-state was due to a better mould growth. |
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| Keywords: | Aspergillus niger enzyme productivity invertase solid-state fermentation submerged fermentation |
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