Maltodextrin is a polysaccharide derived from the partial hydrolysis of starch, consisting of D-glucose units primarily linked by α(1→4) glycosidic bonds, with chain lengths typically ranging from three to 17 units and a dextrose equivalent (DE) below 20. It appears as a white, odorless, hygroscopic powder that is highly soluble in water, non-sweet, and versatile in texture modification.

What is Maltodextrin?

Maltodextrin is produced industrially from corn, wheat, rice, or potato starch via acid or enzymatic hydrolysis, resulting in a mixture of oligosaccharides such as maltose, maltotriose, and longer chains. Its properties—including solubility, viscosity, and bland flavor—vary with DE value, making lower DE forms ideal for bulking and higher DE forms useful for sweetness enhancement.

Biological Role

Easily digestible in the small intestine, maltodextrin provides quick energy (around 4 kcal/g). However, certain resistant forms act as prebiotic fibers, undergoing fermentation in the colon to produce short-chain fatty acids that contribute to gut health.

Sources and Applications

Commonly sourced from starchy foods, maltodextrin is widely used in processed products such as snacks, beverages, and pharmaceuticals. It functions as a thickener, stabilizer, carrier, and texturizer, helping extend shelf life and improve mouthfeel without significantly altering taste.