Hydrolysable Tannins from Cercidiphyllum japonicum Bark

The EtOAc and H2O soluble fractions of Katsura tree (Cercidiphyllum japonicum Sieb. Et Zucc) bark extracts were chromatographed on a Sephadex LH-20 column with various aqueous MeOH. Gallic acid (1), methyl galate (2), kurigalin (3), 1,2,3,6-tetra-O-galloyl-β-D-glucose (4) and 1,2,3,4,6-penta-O-gallo...

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Bibliographic Details
Published inJournal of the Korean Wood Science and Technology Vol. 44; no. 4; pp. 559 - 570
Main Authors Lee, Min-Sung, Min, Hee-Jeong, Si, Chuan-Ling, Bae, Young-Soo
Format Journal Article
LanguageEnglish
Korean
Published 한국목재공학회 2016
Subjects
column chromatography
ellagitannin
gallotannin
Hydrolysable tannins
Katsura tree (Cercidiphyllum japonicum) bark
임학
gallotannin
Katsura tree (Cercidiphyllum japonicum) bark
Hydrolysable tannins
column chromatography
ellagitannin
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Summary:The EtOAc and H2O soluble fractions of Katsura tree (Cercidiphyllum japonicum Sieb. Et Zucc) bark extracts were chromatographed on a Sephadex LH-20 column with various aqueous MeOH. Gallic acid (1), methyl galate (2), kurigalin (3), 1,2,3,6-tetra-O-galloyl-β-D-glucose (4) and 1,2,3,4,6-penta-O-galloyl-β-D-glucose (5) were isolated from EtOAc fraction. Isocorilagin (6) and methyl galate (2) were separated from H2O fraction. The structure determination was done by 1H and 13C NMR. Of these isolated compounds, methyl galate (2), kurigalin (3) and isocorilagin (6) were isolated, for the first time, from the bark extracts of Cercidiphyllum japonicum.
Bibliography:The Korean Society of Wood Science & Technology
KISTI1.1003/JNL.JAKO201624238397236
G704-000240.2016.44.4.002
ISSN:1017-0715
2233-7180
DOI:10.5658/WOOD.2016.44.4.559