ISSN: 0973-7510
E-ISSN: 2581-690X
Eucalyptus biomass was used as the fine bioresources of medicinal cellulose for medical applications, however reasonable control of lignin was the key technology of medicinal biocellulose preparation. Therefore, the separation characteristics of lignin from lignincellulose were investigated and analyzed by FTIR, UV and XRD. The result showed that the maximum of SLR of Eucalyptus urophydis and Eucalyptus urophynis lignincellulose increased with the increase of temperature 10°C, 20°C and 30°C, and the best separation condition of lignin were 24h and 30°C. During lignin separation from lignincellulose by AAHP method, crystallinity of Eucalyptus urophydis and Eucalyptus urophynis lignincellulose were broken, and effect of temperature was very notable so as to use the lower temperature if cellulose would be kept natural structure. The side chain and benzene ring of lignin of Eucalyptus urophydis lignincellulose reached the largest bond breaking characteristics under the temperature of 10 °C at 17h, 20 °C at 5h and 30 °C at 24h, and ones of lignin of Eucalyptus urophynis lignincellulose reached the largest bond breaking characteristics under the temperature of 20 °C at 7h and 30 °C at 24h, however the FTIR didn’t show bond breaking characteristics of lignin at 10 °C.
Eucalyptus biomass, Medicinal biocellulose, Lignincellulose, Separation characteristics
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