A Reticuloendothelial System-Activating Arabinoxylan from the Bark of Cinnamomum cassia

Mieko Kanari, Masashi Tomoda, Ryoko Gonda, Noriko Shimizu, Miyako Kimura, K. Kawabe, Masami Kawaguchi

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)


A neutral polysaccharide, named cinnaman AX, was isolated from the dried bark of Cinnamomum cassia blume. It was homogeneous on electrophoresis and gel chromatography. It is composed of L-arabinose D-xylose in the molar ratio of 4:3, and its molecular weight was estimated to be about 1.0 x 106. Methylation analysis, carbon-13 nuclear magnetic resonance and controlled Smith degradation studies enabled elucidation of its structural features. It showed remarkable reticuloendothelial system-potentiating activity in a carbon clearance test.

Original languageEnglish
Pages (from-to)3191-3194
Number of pages4
JournalChemical and Pharmaceutical Bulletin
Issue number12
Publication statusPublished - 1989


  • Cinnamomi Cortex
  • Cinnamomum cassia
  • Smith degradation
  • arabinoxylan
  • bark
  • cinnaman AX
  • immunological activity
  • methylation analysis
  • polysaccharide structure
  • reticuloendothelial system

ASJC Scopus subject areas

  • General Chemistry
  • Drug Discovery


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