Journal "Chemistry for Sustainable Development"2003_3_5e

Abstract Possibility of obtaining a composite material from the wastes of yeast hydrolysis product -hydrolyzed lignin -and polyethylene as a thermoplastic binder has been demonstrated. The influence of the dispersion degree of the hydrolyzed lignin and of the composition of components on the physicomechanical properties of the material has been estimated. It has been established that in order to obtain a lignoplastic possessing a high strength and low water absorption, it is necessary to use finely divided lignin with a 20-40 % polyethylene content of the initial mixture

CSD2005_3e_5pmd

Abstract Optimization of conditions for obtaining of tanning agents, anthocyanidin dyes, and enterosorbents from bast of a birch bark has been performed. By choosing the appropriate conditions for alkali treatment of a porous fixed residue from extraction processing of bast, enterosorbent was produced, which has exhibited high efficiency when treating acute intestin al infections in animals and dysbacterioses that were caused by application of antibiotics. The comprehensive processing of bast of a birch bark makes it possible to produce about 3 % of resinous matter, 35-40 % of polyphenolic products, 13-15 % of anthocyanidin dye, and about 40 % of enterosorbent