抄録
Distribution and behavior of carbohydrate in particulate matter were studied at polluted river water. Particulate matters were collected from June to December, 1979, at Minami-Asakawa River and it's draining sewages.
Particulate carbohydrate carbon (PCC) and water-extractable carbohydrate carbon (PWCC) were determined by anthrone method, and the gas chromatographic technique was applied for analysis of monosaccharide composition.
Concentrations of PCC ranged from 0.053 to 0.10 mgC/l at MA-3 and from 0.14 to 0.24 mgC/l at MA-5 during one day (July 26-27, 1979). From budgets of PCC and PWCC between MA-3 and MA-5, about 70% of them was estimated to be removed by sedimentation and decomposition from river water during going down.
Rhamnose, fucose, arabinose, ribose, xylose, mannose, galactose, and glucose were identified in particulate matter. Glucose was the most abundant monosaccharide and amounted to about 60% of the total particulate carbohydrate. Notable changes in monosaccharide composition, especially decrease in glucose, were observed after aerobic incubation of particulate matter in river water.
