1988 年 52 巻 2 号 p. 519-524
We isolated seven kinds of oligosaccharides from the hydrolysate of konjac (Amorphophallus konjac) glucomannan by a purified extracellular β-mannanase from Penicillium purpurogenum No. 618. These oligosaccharides were identified as M-M, G-M, G-M-M, M-G-M, G-G-M, M-G-M-M, and M-G-G-M; where G- and M- represent β, 4-D-glucopyranosidic and β, 4-D-mannopyranosidic linkages, respectively. The mode of action of the mannanase on the glucomannan is discussed on the basis of the structure of the above oligosaccharides.
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