| 思茅松树皮单宁化学组成的研究 |
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| 引用本文： | 罗庆云 Foo,LY.思茅松树皮单宁化学组成的研究[J].东北林业大学学报,1994,22(5):76-79. |
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| 作者姓名： | 罗庆云 Foo LY |
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| 作者单位： | 南京林业大学 |
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| 摘 要： | 从思茅松树皮获得的单宁，经葡聚糖凝胶ＳｅｐｈａｄｅｘＬＨ－２０柱分离得到各种级外。通过各种降解反应１３Ｃ－ＮＭＲ谱研究表明，思茅松树皮单宁是多聚原花青定，其延伸单元以２，３－顺式构型为主，终端单元以２，３－反式构型为主。经凝胶渗透色谱法（ＧＰＣ）测得思松树皮多聚原花青定的聚合度为４－２１。
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| 关 键 词： | 思茅松 树皮 缩合单宁 原花青定 |
STUDY ON TANNIN FROM PINUS KESIYA BARK |
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| Luo Qingyun,Ma Wenxiu,Sun Dawang.STUDY ON TANNIN FROM PINUS KESIYA BARK[J].Journal of Northeast Forestry University,1994,22(5):76-79. |
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| Authors: | Luo Qingyun Ma Wenxiu Sun Dawang |
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| Institution: | Luo Qingyun;Ma Wenxiu;Sun Dawang(Nanjing Forestry University)L.Y.Foo H. Wong(Chemistry Division DSIR.New Zealand) |
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| Abstract: | Tannin obtained from Pinus kesiya Bark was chromatographically separated inSephadex LH-20 column into various portions which were identified to be polymeric procyanidins by various degradation reactions and 13C-NMR spectroscopy.The procyanidin consisted of upper units with primarily 2.3-cis configuration,and (+)-catechin primarily as terminal units. Degrees of polymerization ofthe polymeric procyanidin were determined by GPC method to be 4-21. |
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| Keywords: | Pinus kesiya bark Condensed tannin Procyanidins |
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