| abstract |
New polysaccharides have a basic structure of formula (I) or (II) and (a) a mol. wt. of 13000 D (I) and 14000 D (II), (b) a uronic acid content of 55% (I) and 35% (II), (c) a protein content of 7% (I) and 4% (II), (d) an optical rotation of +140 deg. (I) and +65 deg. (II) and (e) a neutral sugar content of 5% rhamnose, 4% arabinose, 8% galactose and 0.5% glucose (I) and 11% rhamnose, 7% arabinose, 1% xylose, 6% galactose and 1% glucose (II) and (a)-(e) are average values. R1 = (a); R2 = (b); R1' = (alpha-(1-4)-alpha-GalpA)n-R3, R3 or -(1-3)-Rhap-1Rhap; and R3 = (c). |