A FF - Faculdade de Farmácia, da Universidade Federal de Goiás, oferece curso de Graduação em: Farmácia. Além de Especialização em: Fitoterapia; e, Citologia Clínica.
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Navegando FF - Faculdade de Farmácia por Assunto "2,5-xylidine"
(2009) Valeriano, Viviane Souto; Silva, Anna Maria Ferreira; Santiago, Mariângela Fontes; Bara, Maria Teresa Freitas; Garcia, Telma Alves
Enzyme application in biotechnological and environmental processes has had increasing interest due to its
efficiency, selectivity and mainly for being environmentally healthful, but these applications require a
great volume of enzymes. In this work the effect of different concentrations of ethanol and 2,5 - xylidine
on growth and production of laccase by Pycnoporus sanguineus was investigated. In a medium containing
200 mg.L-1 of 2,5 - xylidine or 50 g.L-1 of ethanol, the maximum activity of laccase was 2019 U.L-1 and
1035 U.L-1, respectively. No direct correlation between biomass and activity of laccase was observed for
any of the inducers used during the tests. Ethanol concentrations, larger than or equal to 20 g.L-1, inhibited
the radial growth of P. sanguineus. This study showed that ethanol, which has less toxicity and cost than
the majority of the studied inducers, presents promising perspectives for laccase production by P.
sanguineus.