Modification of malachite green by Fomes sclerodermeus and reduction of toxicity to Phanerochaete chrysosporium.

Malachite green (MG) is a triphenylmethane dye used as a fungicide but also possesses a high toxicity to mammalian cells. The toxicity of MG to Fomes sclerodermeus and Phanerochaete chrysosporium was assessed. P.

Optimization of manganese peroxidase and laccase production in the South American fungus Fomes sclerodermeus (Lév.) Cke.

Fomes sclerodermeus produces manganese peroxidase (MnP) and laccase as part of its ligninolytic system. A Doehlert experimental design was applied in order to find the optimum conditions for MnP and laccase production. The factors studied were Cu(2+), Mn(2+) and asparagine.

[Degradation of poplar wood by Fomes sclerodermeus: production of ligninolytic enzymes in sawdust of poplar and cedar].

Fomes sclerodermeus is a white-rot fungus. Its production of laccase, manganese peroxidase and lignin peroxidase on sawdust-based media was evaluated. No lignin peroxidase activity was measured in any media tested.

[Enzymatic activity and degradation of different kinds of organic wastes by Saccobolus saccoboloides (Fungi, Ascomycotina)].

The ability to degrade organic solid wastes by the fungus Saccobolus saccoboloides was studied. The organism, unusual in such studies, was cultivated in synthetic liquid media with agitation, and on day 8 of growth the mycelium was passed to flasks with trimming. On day 16 of growth, the trimming degradation was assesed by carboxymethylcellulase, xylanase, and amylase activities evaluation, and NaOH 1% hydrolysis.