Dynamic Distribution of Moisture, Polysaccharides and Tannins in Larix gmelinii
Abstract: Ultrasonic-assisted extraction technology was applied for extracting saccharides and tannin from Larix gmelinii. The content differences of saccharides and tannins in different parts of Larix gmelinii were simultaneously investigated and then the detailed distribution of saccharides and tannin was obtained. Results showed that the transverse moisture content of sapwood is the lowest, followed by bark, and the heartwood is very high, especially the part nearby the pith which is the most abundant. The longitudinal moisture content of Larix gmelinii decreased in turn from the roots to trunk (8% - 13%). The transverse saccharides content in Larix gmelinii in the outside heartwood nearby the sapwood is the highest, followed by the sapwood and that of the heartwood close to the pith is the lowest. The longitudinal saccharides content increased with the increase of the height and reached the highest at 6 meters high; after that it changed not significantly with the increasing of the height. The content of tannins mainly distributed in the bark and sapwood and the content in bark was about 4 - 5 times that of the sapwood. The longitudinal tannins content increased with the increase of the height and reached the highest at 10 - 12 meters, and then it slightly reduced with the further increasing of height.
文章引用: 崔国强 , 李双阳 , 候可心 , 李欣燃 , 刘俊伶 , 魏梦霞 , 赵春超 (2016) 兴安落叶松中水分、多糖和单宁的动态分布。 植物学研究， 5， 11-16. doi: 10.12677/BR.2016.51003
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