STUDIES ON THE EXTERNAL MUCOUS SUBSTANCE OF FISHES-VI

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  • 魚体表面の粘性物質に関する研究-VI
  • サカナ タイヒョウメン ノ ネンセイ ブッシツ ニ カンスル ケンキュウ 4 6
  • QUALITATIVE ANALYSIS OF THE MUCUS-POLYSACCHARIDE OF SOME FISHES
  • 各種魚類の体表面粘性物質構成糖の比較

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Mucus-polysaccharide acid hydrolyzate of 7 kinds of fishes was divided into neutral, basic and acidic fractions by using ion-exchange resins. The component sugars in each fraction were analyzed qualitatively and the results showed that all mucus-polysaccharides contain the same components except glucose, the presence of which was not confirmed in some species (Table 1).<br> Due to the fairly close Rf values of galactose and glucose in this study, it was difficult to detect glucose. There remains, therefore a possibility that glucose is also present in all the fishes tested. So, the present results suggest that the mucus-polysaccharides mostly consist of the same component sugars irrespective of the differences in their living circumstances (fresh water or sea water) and in classification system (teleost or cartilaginous fish).

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