Determination of the Chemical Composition of Eucalyptus spp. for Cellulosic Pulp Production

The chemical composition of wood is important to assess the quality this raw material for industry cellulosic pulp production. purpose work was determine Eucalyptus spp. grown Ten clones with six years age, located in municipality Itamarandiba, Minas Gerais, Brazil, were used. Quantification obtained extractives, monosaccharides, uronic acids, acetates, lignin, ash and phenolic extracts. In average, showed around 2.7% a predominance polar compounds soluble ethanol water; 27.7% lignin 0.3% ash. Glucose main sugar detected (64.2%), followed by xylose (19.3%). components extractives steroids, fatty acids aromatic smaller amounts substituted alkanoic alcohols, glycerol derivatives triterpenes. ethanol–water extracts presented total phenol contents ranging from 321.4 586.6 mg EAG/g extract, tannins 28.1 65.1 catechin/g extract flavonoids 73.6 256.9 extract. Clones higher holocellulose amount lower content potential These findings are development high-quality based on traits paper sector.