Functionally, α-amylases are capable of hydrolyzing complex polysaccharides into oligosaccharides by breaking the α-1,4-glycosidic bond in the non-reducing ends of polysaccharides, and the resulting oligosaccharides can be further catalyzed into glucose by the disaccharidases (sucrase, maltase, and isomaltase), which readily leads to blood glucose elevation in T2DM patients [9,10]. Here, SI is linked to type 2 diabetes mellitus.