Abstract :
Eucalyptus urograndis leaves are cheap and fine natural resources. Therefore, GC/MS was used to analyze high-grade bioenergy utilization of acetone extractives of Eucalyptus urograndis leaves. 43 compounds in the extractives were identified. The mainly abundant constituents were 1,2,3-butanetriol (33.25%), ethyl.alpha.-d-glucopyranoside (13.48%), thiazolidin-4-one, 3-(9H-xanthen-9-yl)-2-thioxo- (12.31%), 3,6,9,12-tetraoxatetradecan-1-ol,14-[4-(1,1,3,3-tetramethylbutyl) phenoxy]- (5.23%), 6-(isopropylidenehydrazino)pyridaz ine- 3(2H)-thione (3.54%), phytol (2.75%), 2-furancarboxaldehyde, 5-(hydroxym ethyl)- (2.43%), 3,6-bis(3´,4´-diethoxyphenyl)-1,2, 4,5-tetrazine (2.41%), 2-Butanone,4-(2,4,6-trimethoxyphenyl) (2.1%), 3,6,9,12-tetraoxatetradecan-1-ol, 14-(nonylphenoxy)- (1.82%), benzene, 1-methyl-4-(phenylmethyl) (1.75%), 3,4-altrosan (1.67%), 1H-indole, 3-methyl- (1.48%), 2-oxaspiro[5.5]undecane-1,5-dione, 4,4-dimethyl-3-(4-nitrophenyl)- (1.35%), vitamin E (1.17%), 1,3-cyclohexadiene, 1-methyl-4-(1-methylethyl)-(1.06%), etc. The most components from acetone extractives of Eucalyptus urograndis leaves can be used as fine bioenergy, rare biomedicines, and mildew proof preparation.
