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《JOURNAL OF NORTHEAST FORESTRY UNIVERSIYT》 1994-05
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STUDY ON TANNIN FROM PINUS KESIYA BARK

Luo Qingyun;Ma Wenxiu;Sun Dawang(Nanjing Forestry University)L.Y.Foo H. Wong(Chemistry Division DSIR.New Zealand)  
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.
【Fund】: 自然科学基金
【CateGory Index】: S791.259
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