[Determination of the parameters for producing a biobinder from wood: a mathematical modeling of the transformation of lignocellulose substrate by the fungus Panus tigrinus].

A biochemical scheme for the transformation of wood lignocellulose during enzymatic hydrolysis of polysaccharides and lignin destruction in reactions involving free radicals was developed, and a corresponding mathematical model was constructed. Processing (fermentation) of wood particles by the fungus Panus tigrinus in a submerged culture for producing a biobinder of wood composites--woodchip boards and fiber-boards--is considered. The mathematical model was used to study the technological parameters that influence the production of enzymes and fungal biomass and the level of free radical accumulation in the substrate, i.

[Fermentation waste--a biomodifier of concrete].

The composition and properties of molasses-containing yeast fermentation waste used as a plasticizer and structural biological additive to concrete mixtures are reviewed. The basic principles of the effects of organic and inorganic components of yeast fermentation waste on the properties of the bonding system are analyzed.