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Brazilian Archives of Biology and Technology

versión impresa ISSN 1516-8913

Resumen

JESUS, Gisele Jane de; CORSO, Carlos Renato; CAMPOS, Adriana de  y  FRANCHETTI, Sandra Mara Martins. Biodegradation of erythrosin B dye by paramorphic Neurospora crassa 74A. Braz. arch. biol. technol. [online]. 2010, vol.53, n.2, pp. 473-480. ISSN 1516-8913.  http://dx.doi.org/10.1590/S1516-89132010000200028.

The present work used paramorphic forms of Neurospora crassa 74A to remove erythrosine. The fungus culture was grown in medium containing the dye, as only carbon source for 2 and 90 h of interaction. A washing process using distilled water isolated the cellular mass mycelia was dried for 12 h at 105ºC and transformed in fine powder and analyzed in FTIR. The supernatant was analyzed through spectrophotometer UV-Vis and FTIR. Significant differences in the spectrum of UV-VIS and FTIR were observed between the control and the supernatant and between wall control and the walls colored by red, in FTIR for 2 and 90 h. Some significant bands were modified, suggesting the possibility of enzymatic biodegradation in proportion to the time of contact between the dye and fungal biomass.

Palabras llave : Biodegradation; FTIR; Neurospora crassa; Paramorphic; Erythrosin.

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