Chemical Composition of Lipophilic Extractives from Eucalyptus globulus Labill. Wood
نویسندگان
چکیده
منابع مشابه
Time course of fungal removal of lipophilic extractives from Eucalyptus globulus wood.
Free and esterified sitosterol, the main lipophilic constituents of eucalypt wood extractives, have been associated with the formation of pitch deposits during manufacturing of environmentally-sound paper pulp from Eucalyptus globulus wood. These, and other lipophilic compounds, were analyzed by gas chromatography-mass spectrometry in the course of wood treatments (up to 7 weeks) with four extr...
متن کاملVARIATION IN THE COMPOSITION OF WOOD EXTRACTIVES FROM Eucalyptus globulus DURING SEASONING
The variation in the content of extractives from Eucalyptus globulus wood has been studied during a three-month seasoning experiment. The decrease in the total acetone extract (by over 56%) after seasoning is well correlated to a parallel reduction on the colloidal pitch measured in black liquors. The composition of lipophilic extractives during the seasoning period has been studied by gas chro...
متن کاملCHARACTERIZATION OF LIPOPHILIC WOOD EXTRACTIVES FROM CLONES OF Eucalyptus urograndis CULTIVATE IN BRAZIL
The chemical compositions of the lipophilic extractives from four clones of Eucalyptus urograndis cultivated in Brazil were studied by gas chromatography-mass spectrometry (GC-MS) before and after alkaline hydrolysis. The four E. urograndis clones showed similar amounts of dichloromethane soluble (lipophilic) extractives (0.38-0.55% w/w). The major groups of compounds identified in the lipophil...
متن کاملCandidate gene-based association mapping of growth and wood quality traits in Eucalyptus globulus Labill
Background The identification of polymorphisms that underlie complex phenotypic traits presents new and exciting challenges to molecular genetics. Association mapping, which uses linkage disequilibrium (LD) to map trait variation with nucleotide polymorphisms, has proved suited for this purpose in outcrossed tree species. Association mapping can be undertaken either at a candidate gene level or...
متن کاملGenetic Variation in the Chemical Components of Eucalyptus globulus Wood
Despite the ecological and economic importance of lignin and other wood chemical components, there are few studies of the natural genetic variation that exists within plant species and its adaptive significance. We used models developed from near infra-red spectroscopy to study natural genetic variation in lignin content and monomer composition (syringyl-to-guaiacyl ratio [S/G]) as well as cell...
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ژورنال
عنوان ژورنال: Holzforschung
سال: 1999
ISSN: 0018-3830
DOI: 10.1515/hf.1999.079