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Chemistry for Sustainable Development

2016 year, number 2

Mechanical Activation of Enzymatic Hydrolysis of Highly Lignified Plant Raw Material

1Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Ul. Kutateladze 18, Novosibirsk 630128 (Russia)
2Novosibirsk State University, Ul. Pirogova 2, Novosibirsk 630090 (Russia)
Keywords: механическая активация, высоколигнифицированное растительное сырье, стебли тростника, ферментативный гидролиз, биотопливо, mechanical activation, highly lignified plant raw mateiral, reed stems, enzymatic hydrolysis, biofuel


Effect of the conditions of mechanochemical activation on the efficiency of enzymatic hydrolysis of carbohydrates incorporated into highly lignified plant raw material - reed stem biomass was studied. Complicated supramolecular structure and high lignin content in the structure have a negative effect on enzymatic hydrolysis. The model conditions of fragile grinding and plastic deformation of the material under different temperature of mechanical activation are considered. The samples obtained by mechanical activation of lignocellulose material are characterized by increased reactivity in enzymatic hydrolysis due to an increase in the surface area and disordering of the crystalline regions in cellulose. Optimal conditions for mechanical activation of plant raw material for obtaining highly reactive products were established.