UEDA S, FUJITA K, KOMATSU K, NAKASHIMA Z I
Appl Microbiol. 1963 May;11(3):211-5. doi: 10.1128/am.11.3.211-215.1963.
A dextranlike polysaccharide was found to be produced on substrates of sucrose, maltose, glucose, and fructose by growing cells of various strains of the genus Pullularia. The polysaccharide, obtainable in amounts as large as 2 to 3 g per 100 ml of culture medium using various carbohydrates as the carbon source, was soluble in cold water but not in 50% alcohol. The polysaccharide obtained had a alpha(d) = +197.5 degrees (c = 0.2 in water), and its molecular weight, determined by the light-scattering method, was found to be approximately 250,000.
人们发现,普鲁兰属各种菌株的生长细胞能在蔗糖、麦芽糖、葡萄糖和果糖等底物上产生一种类似葡聚糖的多糖。以各种碳水化合物作为碳源,每100毫升培养基可获得多达2至3克的这种多糖,它可溶于冷水,但不溶于50%的酒精。所得到的多糖的旋光度α(d) = +197.5°(在水中c = 0.2),通过光散射法测定其分子量约为250,000。