そばの非澱粉質多糖類に関する研究(第1報)

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タイトル別名
  • Studies on the Non-Starchy Polysaccharides of the Endosperm of Buckwheat Part I
  • ソバ ノ ヒデンプンシツ タトウルイ ニ カンスル ケンキュウ 1 ソバ ノ スイヨウセイ ヒデンプン シチモツ ノ ブンカク ト ソノ コウセイ トウ ニ ツイテ
  • On the Fractionation and Constituent Sugars of the Water Soluble Non-Starchy Polysaccharides of Buckwheat
  • そばの水溶性非澱粉質物の分画とその構成糖について

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Water soluble non-starchy substances were extracted from buckwheat endosperm grown on different districts [Japan (Fukushima, Kumamoto), China, Africa and Canada]. The extract was fractionated with ammonium sulfate. Main fraction was S-70 not precipitated with ammonium sulfate. Its constituent sugars were glucose, galactose and a small amount of mannose, rhamnose, xylose and arabinose. Each fraction of the extract from buckwheat of Japan (Kumamoto) and China was adsorbed on DEAE-cellulose (borate form) column and fractionated by the stepwise elution with water, borax and NaOH. Polysaccharides of S-70 fraction were mainly eluted with water and NaOH, while in case of P-50 and P-70 fractions (precipitated with 50% and 70% ammonium sulfate), polysaccharides were eluted with borax, too.<br> The elution pattern and ultracentrifuge pattern of S-70 fraction of the extract from buckwheat of Kumamoto and China were similar to each other. So it is suggested that some common components of buckwheat endosperm exist in the S-70 fraction.

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