α−D - glucose +β−D - fructose also named as invert sugar and it is a example of non-reducing sugar The glycosidic linkage is present between C1 of α-glucose and C2 of β-fructose. In sucrose, the components glucose and fructose are linked via an ether bond between C1 on the glucosyl subunit and C2 on the fructosyl unit. The bond is called a glycosidic linkage.