サハギキョウの成分について (第2報)
一新グルコフルクタン “Sessilifolan” の過ヨード酸酸化
1962 年 82 巻 11 号 p. 1520-1522
詳細
1962 年 82 巻 11 号 p. 1520-1522
The periodate oxidation of new glucofructan “Sessilifolan, ” isolated from Lobelia sessilifolia LAMB. was found to consume one mole of periodate per hexoseunit (C6-unit) and no formic acid formation was observed in this reaction. Furthermore, neither glucose nor fructose was identified in the hydrolyzate of the oxidized product.
These findings suggested that the structure of sessilifolan supposed to be nonbranched one, that two moles of glucose in the molecule situated in polysaccharide chain, not at the terminal forming 1, 4-linkage, and that, though fructose bound in 1, 2-linkage, the terminal fructose combined at the 2-position because sessilifolan did not reduce the Fehling's solution.
Though sucrose was identified in the incomplete hydrolyzate of sessilifolan, any disaccharides composed from simply such glucose as maltose and cellobiose were not identified. This fact suggested that several molecules of fructose may intervene between two molecules of glucose in sessilifolan.
