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Revista mexicana de ingeniería química

versão impressa ISSN 1665-2738

Resumo

VERGARA-FERNANDEZ, A.; HERNANDEZ, S.; SAN MARTIN-DAVISON, J.  e  REVAH, S.. Morphological characterization of aerial hypahe and simulation growth of Fusarium solani under different carbon source for application in the hydrofobic VOCs biofiltration. Rev. Mex. Ing. Quím [online]. 2011, vol.10, n.2, pp. 225-233. ISSN 1665-2738.

This work presents the effect of different carbon sources (glycerol, 1-hexanol and n-hexane) over the morphology of the aerial hyphae of the filamentous fungus Fusarium solani for its application in the biofiltration of volatile organic compounds (VOCs). A mathematical model was developed and further verified that combines microscopic and macroscopic parameters describing the mycelial fungal growth. Image analysis of microcultures and culture in agar dishes was performed to determine the morphological parameters. Theresults show that the hydrophobic and volatile carbon rources modified the morphology of Fusarium solani, this is associated with thebettor utilization of the volatile carbon source. The main morphology changes observed with glycerol and n-hexane, were the reduction in both the hyphal diameter (from 2.99+0.29 μm to 2.01+0.35 μm) and the average hyphal length (from 603.8+48.3 μm to 280. 1+36.6 μm). These results indicate an increase in the transport area for the same amount of biomass as an adaptation response to increase the uptake of volatile hydrophobic substrates.

Palavras-chave : filamentous fungi; morphology; fungal biofiltration; Fusarium solani.

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