Studies on Commercial Cinnamon and Allied Barks. X. On Nikkei, Cinnamomum sieboldii MEISN., syn. C. loureirii auct. Japon non NEES(Pharmacognosy,Chemical)

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Japanese cinnamon on the market was investigated histologically using specimens collected in Japan. Sixteen lots of material were inspected. They were found to be diverse in internal structure with respect to the amount and combination of mechanical tissue in the bark. In addition, the difference between the Nikkei root bark and stem bark was clarified. Neither fiber bundles nor a cutinized cell layer was observed in the root bark, which had tangentially elongated cork cells, large oil cells in the primary cortex, and less mechanical tissue than the stem bark. Marketed samples exhibiting a cutinized cell layer probably contain bark from exposed roots or are adulterated with stem bark. Botanical specimens of the following Cinnamomum species were also examined histologically : Nikkei, C. sieboldii syn. C. loureirii ; Yabu-nikkei, C. insularimontanum syn. C. japonicum ; Kusunoki, C. camphora ; Maruba-nikkei, C. daphnaides ; and Shiba-nikkei, C. daphnoides subsp. Doederleinii. The root bark structures of these species were compared at five growth stages and are described in detail. At maturity, three types of structure could be distinguished. One type is shown by Nikkei and Yabu-nikkei. The second is Kusunoki, which has anatomical features not found in other-species. Maruba-nikkei and Shiba-nikkei, which differ noticeably only in the amount of mechanical tissue, exhibit the third type of structure.

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詳細情報 詳細情報について

  • CRID
    1571980077232097920
  • NII論文ID
    110006281076
  • NII書誌ID
    AA00602100
  • ISSN
    00092363
  • 本文言語コード
    en
  • データソース種別
    • CiNii Articles

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