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Trametes versicolor growth and laccase induction with by-products of pulp and paper industry 69
Rebelo Barreto Xavier,Ana Maria; Mora Tavares,Ana Paula; Ferreira,Rita; Amado,Francisco.
The cultivation of Trametes versicolor for laccase production and cell growth were strongly dependent on experimental conditions namely physical and chemical parameters as well as nutrient availability and inducer stimulation. Biomass growth was compared for a rich medium and for a defined medium in two different temperatures. The best temperature was 28ºC and the maximum specific growth rates were µmax = 0.083 h-1 for the rich medium and µmax = 0.043 h-1 for the defined medium. It was clearly shown that laccase production is not associated with cell growth, indicating that this ligninolytic enzyme must be produced in the defined medium by a secondary metabolism. In order to obtain laccase induction, addition of solid lignin, lignosulphonates, veratryl...
Tipo: Journal article Palavras-chave: Inducers; Laccase; Pulp and paper by-products; Trametes versicolor.
Ano: 2007 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582007000300012
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