Chemical composition of 36 Brazilian Amazon forest wood species
Chemical composition of 36 Brazilian Amazon forest wood species
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DOI：
10.1515/hf.2007.084
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发表时间：
2007-01-01
期刊：
影响因子：
2.4
通讯作者：
Arakaki Okino, Esmeralda Yoshico
中科院分区：
文献类型：
--
作者：
Eduardo Santana, Marcos Antonio;Arakaki Okino, Esmeralda Yoshico
采用全水解法对巴西亚马逊森林中36种树种的木材进行了提取和分析。对每个物种，三棵树进行了重复分析。用高效液相色谱法分析了水解产物的糖和其他副产物。用比色法测定醛酸酐和酸溶木质素。用重量法分析了酸不溶性木质素、灰分和萃取物的含量。每次分析进行多次，并对数据进行统计评价。给出了灰分和萃取物的平均百分比。用高效液相色谱法测定糖的含量，重新计算葡聚糖、半乳聚糖、阿拉伯糖和甘露聚糖的含量。这些数据与乙酰基、5-羟甲基-2-糠醛、乙酰丙酸、醛酸酐、酸溶性和不溶性木质素的定量数据一起提供，作为基于无灰和无提取物基础的总结性分析数据，其中，在理想情况下，数据总和应达到100%。所得结果在96.0% ~ 99.6%之间，令人满意。
Woods of 36 tree species from the Brazilian Amazon forest have been extracted and analyzed by means of total hydrolysis. For each species, three trees were analyzed in duplicate. The sugars and other byproducts of hydrolysis were analyzed by HPLC. Uronic anhydrides and acid-soluble lignin were determined by colorimetric methods. Acid-insoluble lignin, ash, and extractive contents were analyzed gravimetrically. Each analysis was performed several times and the data were evaluated statistically. The average percentages for ash and extractives are presented. Quantitative data for sugars obtained by HPLC were recalculated for glucan, galactan, arabinan, and mannan contents. These data are presented together with quantitative data for acetyl groups, 5-hydroxymethyl-2-furfuraldehyde, levulinic acid, uronic anhydride, acid-soluble and-insoluble lignin as summative analysis data based on an ash- and extractive-free basis, where, in an ideal case, the data should sum up to 100%. The summative results obtained varied from 96.0% to 99.6%, which is very satisfactory.