Maltodextrin is a flavorless,easily digested carbohydrate made from cornstarch.  

Maltodextrins are used as carrier for spray-drying of active substances.

Maltodextrins are used as diluents in single unit dosage preparations such as   sachets. Because of their inherent polymeric nature maltodextrins also make excellent binders for direct compression. Since it has weak sweetness, they're widely used in food processing such as sweets, ice cream, jam, cakes etc.,and the flavour   of other materials in the products can be improved.

Maltodextrins are used as coating agent in pharmaceutical industries.

Maltodextrins are used as binder since they have a rather high viscosity in solution and good binding properties. If proper amount of maltodextrin powder is added to   solid granules or ball candies or white-sugar rice cakes, molding rate is increased   and work efficiency is improved.

Maltodextrins are used as stabilizers since they belong to large numerator   saccharide, high viscidity and high foam stability. Therefore, it can be used as foam stabilizer in beer making and gas liquor making.