Chemical Studies on Polyuronides. VI On the Mucilage of Nori-utsugi Plant, Hydrangea Paniculata, Sieb. (1)

摘要: 1. The mucilage of the inner bark Nori-utsugi plant Hydrangea paniculata, Sieb.) was found to be composed arabinose, galactose, rhamnose and D-galacturonic acid. 2. When crude mucilagenous solution had stood for several days, a deposit appeared which might impurities. purified obtained from supernatant clear solution. polyuronide galacturonic acid it considered essential part mucilage. 3. Degraded by heating at 120-125°C in an autoclave. It same component sugars as mucilage,and represented main structure 4. acid, galactose molar raito 10:7:3: that is,the molecular mula is [(C6H8O6)10·(C6H10O5)7·(C6H10O4)3]20 5. degraded exhibited typi...