Identification of Soluble Proteins and Interaction with Mannan in Mucilage of Dioscorea opposita Thunb. (Chinese Yam Tuber)

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著者

    • MYODA Takao
    • Department of Food Science and Technology, Faculty of Bioindustry, Tokyo University of Agriculture
    • MATSUDA Yosuke
    • Department of Food Science and Technology, Faculty of Bioindustry, Tokyo University of Agriculture
    • SUZUKI Tomonori
    • Department of Food Science and Technology, Faculty of Bioindustry, Tokyo University of Agriculture
    • NAKAGAWA Tomoyuki
    • Department of Food Science and Technology, Faculty of Bioindustry, Tokyo University of Agriculture
    • NAGAI Takeshi
    • Department of Food Science and Technology, Faculty of Bioindustry, Tokyo University of Agriculture
    • NAGASHIMA Toshio
    • Department of Food Science and Technology, Faculty of Bioindustry, Tokyo University of Agriculture

抄録

In this study, we analyzed the influence of proteins and polysaccharides on the viscous properties of mucilage extracted from <I>Dioscorea opposita </I>Thunb. (Chinese yam). The viscosity of the mucilage was greatly reduced by treatment with protease or mannanase, although not by treatment with cellulase. These results show that the interactions with mannan of certain soluble proteins in the mucilage play an important role in its viscosity, so we identified the major soluble proteins present. Chinese yam mucilage contained at least nine types of major soluble proteins, some of which showed a high percentage of identity with dioscorin, mannan-binding lectin and other functional proteins in the N-terminal amino acid sequence. From these findings, it was suggested that the viscosity of Chinese yam mucilage may be caused by interaction between mannan and soluble proteins such as mannan-binding lectin.

収録刊行物

  • Food science and technology research  

    Food science and technology research 12(4), 299-302, 2006-11-01 

    Japanese Society for Food Science and Technology

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各種コード

  • NII論文ID(NAID)
    10018441289
  • NII書誌ID(NCID)
    AA11320122
  • 本文言語コード
    ENG
  • 資料種別
    NOT
  • ISSN
    13446606
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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