SWEET SORGHUM BIOMASS QUANTITATIVE AND QUALITATIVE CHARACTERISTIC DEPENDING ON HYBRID AND TYPE OF SOIL

Ukrainian and American sweet sorghum hybrids were studied as raw material under reclaimed lands conditions in the southeast Ukraine. Among the cultivars in the range of hemicellulose destruction the highest reactivity was recorded for American hybrids, whereas the process of cellulose decomposition was most active in Ukrainian hybrids. Thermogravimetry (TG) curves of Ukrainian hybrids were more differed for plants grown on loess like loam comparative with American hybrids. The molecular structure of sweet sorghum lignin is represented by the spatially hindered hydroxyl groups of alcohol and phenolic type with the strength hydrogen bonding between some other structural fragments of macromolecules, ordinary carbon-oxygen bonds of metoxyl groups, and double carbon-carbon bonds.