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Starch gelatinization. Starch gelatinization is a process of breaking down of intermolecular bonds of starch molecules in the presence of water and heat, allowing the hydrogen bonding sites (the hydroxyl hydrogen and oxygen) to engage more water. This irreversibly dissolves the starch granule in water. Water acts as a plasticizer.
Modified starch may also be a cold-water-soluble, pregelatinized or instant starch which thickens and gels without heat, or a cook-up starch which must be cooked like regular starch. Drying methods to make starches cold-water-soluble are extrusion , drum drying , spray drying or dextrinization .
Pure starch is a white, tasteless and odorless powder that is insoluble in cold water or alcohol. It consists of two types of molecules: the linear and helical amylose and the branched amylopectin. Depending on the plant, starch generally contains 20 to 25% amylose and 75 to 80% amylopectin by weight. [4]
Corn starch is a common food ingredient, often used to thicken sauces or soups, and to make corn syrup and other sugars. [3] Corn starch is versatile, easily modified, and finds many uses in industry such as adhesives, in paper products, as an anti-sticking agent, and textile manufacturing. [4] It has medical uses as well, such as to supply ...
In printing, anti-set-off spray powder is used to make an air gap between printed sheets of paper. This enables the ink to dry naturally and therefore avoid the unwanted transfer of ink from one printed sheet to another. The problem can occur with most types of printing. Anti-set-off spray powder is generally made from natural starches from ...
Laundry starch. Laundry starch or clothing starch is a liquid suspension prepared by mixing a vegetable starch in water used in the laundering of clothes. In biochemistry, starch refers to a complex polymer derived from glucose, but in the context of laundry, the term "starch" refers to a suspension of this polymer that is used to stiffen clothing.
Parboiled rice, also called converted rice, easy-cook rice, [1] sella rice, and miniket (as predominantly called in West Bengal and Odisha in India, and in Bangladesh) is rice that has been partially boiled in the husk. The three basic steps of parboiling are soaking, steaming and drying. [2] These steps make the rice easier to process by hand ...
Deodorant. Sometimes a spray is the way to go! TBH, the fine mist feels close to a body spray, and it absorbs into the skin without feeling sticky or wet.Plus, the formula’s alcohol kills ...
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