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    • Extraction of Xylan and Preparation of Xylooligosaccharide

      First, samples for analysis was prepared. In other words, dulse, exterminated in Hakodate city, was freeze-dried,

      crushed and removed lipids and proteins. The obtained cotton-shaped xylan was hydrolyzed by a commercially

      available carbohydrate hydrolase.


      Analysis of Xylooligosaccharides

      The xylan hydrolyzate was analyzed in detail using various instruments. The composition of the product in the hydro-

      lyzate was analyzed by HPLC, the molecular weight was analyzed by GC-MS, and the structure was analyzed by NMR.

      These analyzes confirmed whether xylooligosaccharides with a structure peculiar to dulse were generated.

    • HPLC 頁面
    • NMR 頁面
    • GC-MS 頁面