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Maize starch chemical formula (C6H10O5)n also know as Corn starch or flour is a fundamental ingredient in most of the packaged food and industrial products; it is extracted from the corn kernel and has a distinctive appearance and feed. Maize starch in natural ,modified, pre-gelatinized and dextrinised 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. Practically every industry in existence uses starch or its derivatives in one form or another.
Native starch is used to provide dry strength and as a surface improvement aid in alkaline papermaking, starch is 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.
The maize starch is known to form the basic constituent of sweet food. Another property of the maize starch is that it can form a smooth paste within a short interval of time. Another reason for which the maize starch is used on a large scale lies in the fact that they can be dispersed with much ease in the hydrophilic Medias. The starch has an ample amount of carbohydrate and thus it is known to be among the energy producing food. The maize contains starch by a percentage of 66, which can be extracted from the maize from various means. Steeping, grinding, drying and purifying are the essential processes that are being used for the extraction of starch from maize.
The maize starch is also known to have the best usages in various other industries. Paper industry, textile industry, pharmaceutical industries are some of the common places where the maize starch has high usages. In the paper industries, the paper industries are used on a large scale as the surface sizing agents. The starch can also be used in the paper industries for enhancing the strength of paper. The appearance of paper can be improvised in a perfect manner with the use of maize starch. The paper is also used as a binder in the industries.
Characteristics and Specifications:
White Color Free Flowing Powder
PH(10% ag. slurry)
Particle size (Retention on 100 mesh)
10.0% to 13.5%
Starch content on dry basis
Total Ash on DB cold water
0.2 - 0.5
88.0 PV min
Brookfield Viscosity (5% paste at 75°C
1600 cps Min
Free Acidity (ml of 0.1N NaOH/100gms)
40 ml Max
Protein % (on D.B)
Sulphur Dioxide (PPM)
0.05 to 0.10
50 kg per bag / Jumbo Bag
Starches are basically carbohydrates, known as polysaccharides, i.e., multiple molecules of sugar. For commercial use, they are derived from a variety of cereals like rice, wheat, sorghum, corn and tubers like potato, tapioca, sweet potato, etc. Internationally popular forms of starch are mostly derived from corn and tapioca due to their easy availability.
Due to a peculiar phenomenon called gelatinisation – an irreversible swelling of starch granules when treated with hot water, starch turns into a thick paste. When cooled and with certain additives, it forms a gel. This gives it high viscosity which forms the basis of its many uses.
Tapioca starch is used in varied industrial as well as commercial applications. Its uses as so diverse that it can be found in almost all kinds of industries ranging from paper, textile, food and furnishings Tapioca starch is a thickener and stabilizer that is used in puddings, breads, sauces, fruit pies and meat products. It does not lose it quality even on reheating and freezing. When tapioca starch is used as a thickening agent, it completely becomes clear and dissolves completely.
Tapioca is extracted from the roots of Manihot esculenta plant. These plants are popularly known as cassava plants that grows in a form of a bush. Roots of this plant are 8 cm thick 91 cm long where as the plant itself is about 8 ft tall. Tapioca is a Tupi word that means the process through which starch is made edible. Another advantage is using tapioca starch is that it is free from gluten as well as protein.
Tapioca starch has excellent binding capacity so used in adhesive industry. After mixing it with water, it becomes quiet sticky and remains like this for a long period of time. Industrial glues are also made from the high quality tapioca starch.
It is used as filler in compounded animal feed.
Tapioca starch is extensively used in many textile processes. It is required during sizing of yarn and also for finishing cotton as well as polyester fabrics. Also it is used while producing textile during its process of mixing, printing and finishing. During the process of mixing it is used as a sizing agent. Tapioca starch is also used as a finishing agent to make the fabric smooth. Also it makes the colors of the fabric very sharp and durable.
Tapioca starch is extensively used in many kinds of confectioneries as thickeners, gelling agent, for foam strengthening as well as film foaming and glazing. Low viscosity tapioca starch is used in jellies and gums. While casting, powdered starch is used as a mould release.
Tapioca starch is used in place of sucrose in beverages.
Apart from this Tapioca starch is used in many other non-food industries. It is used as binding agent in explosive industry. In paper industry, the tapioca starch is used for filler retention, internal sizing, surface sizing and paper coating. Also it is used in the production of diapers and women sanitary products. In construction industry, tapioca starch is used to bind concrete block, clay, limestone, plywood. It is also used as paint filler in construction industry.
Characteristics and Specifications:
Fine Free Flowing White Powder
13.0 % max
0.20 % max
Acid Insoluble Ash
0.05 % max
pH of 10% slurry
5.0 - 7.0
50 ppm max
Viscosity of 5% solution in Brook field viscometer at 50° c sp no.2 ,20 rpm
1500 cps min
Viscosity of 2% solution in Red wood No. 1 viscometer, measured at 75°c