Question: what is the difference between the disaccharides lactose and maltose?
Answer: Lactose, the disaccharide of milk, consists of galactose joined to glucose by a β-1,4-glycosidic linkage. ... In maltose, two glucose units are joined by an α-1,4 glycosidic linkage, as stated earlier. Maltose comes from the hydrolysis of starch and is in turn hydrolyzed to glucose by maltase.