This also turned out to be true in mice , and working with these rodents , the researchers discovered that the types of firmicute found in obese animals are more efficient at converting complex polysaccharides ( a form of carbohydrate that mammals have a hard time digesting by themselves ) into simple , usable sugars such as glucose 这个结论同样适用于鼠等啮齿类动物，研究人员发现肥胖动物体内的厚壁菌转化多糖（哺乳动物自己消化比较费力的碳水化合物）为单糖（机体随时可用的糖类例如葡萄糖）的效率更高。
Fos contain mixture of gf2 , gf3 and gf4 sugars ( where g = glucose molecule and f = fructose molecule ) and a dp ( “ degree of polymerization ” ) of 3 - 5 ( “ neosugar ” ) , are not naturally - occurring but are enzymatically synthetized from sucrose by action of an enzyme from the fungus aspergillus niger 详细说明：是以蔗糖做底物，采用呋喃果糖苷酶转果糖基作用，在蔗糖分子上以（ 1 2 ）糖苷键上与1 - 3个果糖分子结合，形成的蔗果三糖（ gf2 ） 、蔗果四糖（ gf3 ） 、蔗果五糖（ gf4 ）属于果糖和蔗糖构成的直链杂低聚糖，在形成的产物中还有果糖、葡萄糖和未反应完全的底物蔗糖，采用色谱法除去单糖和双糖制得高纯度的低聚果糖。
This also turned out to be true in mice , and working with these rodents , the researchers discoered that the types of firmicute found in obese animals are more efficient at conerting complex polysaccharides ( a form of carbohydrate that mammals hae a hard time digesting by themseles ) into simple , usable sugars such as glucose 这个结论同样适用于鼠等啮齿类动物，研究人员发现肥胖动物体内的厚壁菌转化多糖（哺乳动物自己消化比较费力的碳水化合物）为单糖（机体随时可用的糖类例如葡萄糖）的效率更高。
