Volume 21, Issue 7 pp. 858-863
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Structural Features of Fructans from the Root of Cyathula officinalis Kuan

Xiao-Ming Chen

Xiao-Ming Chen

State Key Laboratory of Bioorganic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China

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Geng-Yuan Tian

Geng-Yuan Tian

State Key Laboratory of Bioorganic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China

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First published: 26 August 2010
Citations: 8

Dedicated to Professor ZHOU Wei-Shan on the occasion of his 80th birthday.

Abstract

Three fructans (CoPS1, CoPS2 and CoPS3) were isolated from the root of Cyathula officinalis Kuan, a traditional Chinese medicine. The structures of the fructans were determined by methylation, reductive-cleavage method combined with GC-MS analysis, and 13C NMR spectroscopy. These results show that the fructans (CoPS1, CoPS2 and CoPS3) are graminan type fructans, and comprised of (2→1)-and (2→6)-linked β-D-fructofuranosyl backbone residues containing high branches.

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