Polysaccharides in fungi V. Isolation and characterization of a mannan from aqueous ethanol extract of Dictyophora indusiata Fisch.

• 鵜飼 茂夫

• 原 千尋

• 木方 正

• 広瀬 一雄

抄録

A new type of mannan (T-2-HN) has been isolated as a neutral homoglycan from the aqueous 70% ethanol extract of the fruit bodies of Dictyophora indusiata FISCH., which grows in China. T-2-HN was homogeneous as judged by gel filtration (Sepharose 2B) and Tiselius-type electrophoresis. It was composed of D-mannose and a trace of glucose in a molar ratio of 100 : 1, and contained O-acetyl groups in the proportion of about one acetyl group per two sugar residues. Its highly positive specific rotation, [α]²⁰_D+116°(c=0.1, H₂O), and the presence of an absorption band at 820 cm^-1 (type 2a) in the infrared spectrum suggested that most of the glycosidic linkages in this mannan are of α-D configuration. Structural analysis indicated that T-2-HN has a linear chain composed largely of α-1→3 linked D-mannosyl residues, but the linear chain also contains traces of 1→6 linked D-mannopyranosyl (and/or glucosyl) residues. In addition, trace amounts of branching points are present at position 2 or 4 on each of the 1→3 linked D-mannose residues.

収録刊行物

• ＣＨＥＭＩＣＡＬ　＆　ＰＨＡＲＭＡＣＥＵＴＩＣＡＬ　ＢＵＬＬＥＴＩＮ

  ＣＨＥＭＩＣＡＬ　＆　ＰＨＡＲＭＡＣＥＵＴＩＣＡＬ　ＢＵＬＬＥＴＩＮ 28 (9), 2647-2652, 1980

  公益社団法人 日本薬学会

キーワード

• Smith degradation

詳細情報

• CRID: 1390282679138286208
• NII論文ID: 110003624079
• NII書誌ID: AA00602100
• DOI: 10.1248/cpb.28.2647
• ISSN: 13475223
• ISSN: 00092363
• Web Site: http://www.jstage.jst.go.jp/article/cpb1958/28/9/28_9_2647/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/1981177527
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可