2003
DOI: 10.1016/s0165-2370(02)00061-x
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Rapid characterization of wood extractives in wood by thermal desorption-gas chromatography in the presence of tetramethylammonium acetate

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Cited by 33 publications
(37 citation statements)
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“…The value of crystallinity index obtained using Equation (1) can be attributed to different hydroxyl group (alcohol/phenol) stretching vibrations [25][26][27][28]. The band at 2937 cm could be a result of aliphatic saturated C-H stretching vibrations (asymmetric and symmetric methyl and methylene stretching groups) from extractives and lignin components of the biomass since fatty acid methyl esters and phenolic acid methyl esters, have methyl and methylene groups [29][30][31][32]. In the fingerprint region, the band at 1600 cm −1 may be due to the ring-conjugated C=C bonds of lignin while the band observed at 1200 cm −1 may be an indication of O-H bending in the cellulose and hemicellulose components of the biomass [5,25,26,28,[33][34][35][36].…”
Section: Resultsmentioning
confidence: 99%
“…The value of crystallinity index obtained using Equation (1) can be attributed to different hydroxyl group (alcohol/phenol) stretching vibrations [25][26][27][28]. The band at 2937 cm could be a result of aliphatic saturated C-H stretching vibrations (asymmetric and symmetric methyl and methylene stretching groups) from extractives and lignin components of the biomass since fatty acid methyl esters and phenolic acid methyl esters, have methyl and methylene groups [29][30][31][32]. In the fingerprint region, the band at 1600 cm −1 may be due to the ring-conjugated C=C bonds of lignin while the band observed at 1200 cm −1 may be an indication of O-H bending in the cellulose and hemicellulose components of the biomass [5,25,26,28,[33][34][35][36].…”
Section: Resultsmentioning
confidence: 99%
“…Analytical pyrolysis was used to quantitatively assess content of carbohydrates [8][9][10], lignin [9,11] and extractives [17], as well as lignin composition [12][13][14][15][16] in wood and pulp.…”
Section: Introductionmentioning
confidence: 99%
“…A madeira usada no processo de fabricação dessa polpa é constituída de várias classes de compostos, como celulose, hemiceluloses e lignina, incluindo também os extrativos, que são formados por substâncias solúveis em água e em vários solventes orgânicos. Os componentes da madeira solúveis em água são sais inorgânicos, carboidratos, enquanto os compostos dos extrativos solúveis em solventes orgânicos pertencem à classe dos ácidos graxos, lipídios, terpenóides, compostos fenólicos [1][2][3] . Vários compostos presentes nos extrativos, bem como alguns aditivos utilizados no processamento da polpa, podem formar depósitos denominados "pitch".…”
Section: Introductionunclassified