Maize starch, also commonly known as corn starch, has the chemical formula (C6H10O5)n. It is a fundamental ingredient in most packaged food and industrial products. Maize starch in natural, modified, pre-geletanized and dextrinized forms provides viscosity, texture and other desired properties to all types of food & paper, products from canned chilled frozen to microwaveable goods, dry mixes and extruded snacks. Starch serves as the starting material for manufacturing of starch derivatives and starch are often obtained from maize. Practically every industry in existence uses starch or its derivatives in one form or another.
Maize starch is extracted from the white heart of the corn kernel and has a distinctive appearance and feed. Other sources of starch include potatoes, wheat, tapioca and rice.
The major use for starch-based adhesives is in so-called converting processes applied to paper and paperboard. These processes include fabrication of corrugated boxboard, paper bags, folding cartons, laminated paperboard, and spiral-wound tubes as well as off-machine pigment coating of paper and making of gummed labels and tapes.
Corn starch is an economical fermentation feedstock to produce many organic chemicals such as ethanol. It is made by fermenting sugars produced from corn starch ethanol produced from corn starch promised a renewable source of fuels for care and other engines with environmental advantages.
It is used as a thickening and gelling agent for its viscosity and opaqueness in sauces, soups, gravies and various desserts. It is also an effective binder and acts as a stabilizer to give necessary texture and sweetness to bakery products.
It is used in the fermentation industry to produce monosodium glutamate, citric acid.
It is used to produce high maltose syrup, high fructose syrup, maltodextrin.
During papermaking, native maize starch is used to provide dry strength and as a surface improvement aid in alkaline papermaking. Starch is also a critical part of wet-end sizing it is an integral part of micro-particle retention and works as a binder water holding agent and carrier for surface sizing chemicals and other functional additives.
In the manufacture of textiles, starch keeps the yarn straight and strong, significantly improving its ability to chemical’s withstand the stress of weaving.