pen·to·san /ˈpɛntəˌsæn/
  戊聚糖; 多縮戊糖
  pen·to·san /ˈpɛntəˌsæn/ 名詞
  戊聚糖
  Pen·to·san n. Also -sane.  Chem. One of a class of substances (complex carbohydrates widely distributed in plants, as in fruits, gums, woods, hay, etc.) which yield pentoses on hydrolysis.
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