Analysed with gas chromatography the monosaccharide composition and molecular ratio of water-fast EPS was gained: rha:glu = 4. 08:5. 55, and 4 unknownmonosaccharide.

• 气相色谱分析结果表明:胞外水不溶性多糖由鼠李糖、葡萄糖和4种未知单糖组成；鼠李糖和葡萄糖的摩尔比为:鼠李糖:葡萄糖=4.；08:5