Modified starch - WikipediaNanomaterials and Nanosystems for Biomedical Applications pp Cite as. The unique physicochemical and functional characteristics of starches isolated from different botanical sources such as corn, potato, rice and wheat make them useful for a wide variety of biomedical and pharmaceutical applications. Starch properties such as swelling power, solubility, gelatinization, rheological characteristics, mechanical behaviour and enzymatic digestibility are of utmost importance while selecting starch source for distinctive applications such as bone fixation and replacement. Starches can also be used as carriers for the controlled release of drugs and other bioactive agents. The chemically modified starches with more reactive sites to carry biologically active compounds are useful biocompatible carriers, which can easily be metabolized in the human body.
Pregelatinized Starch Extruder /modified starch machine
Starch – A Potential Biomaterial for Biomedical Applications
Total starch content, resistant starch content, degree of modification, changes in FT-IR spectra, colour, gel texture and freeze-thaw stability were determined. Results showed that resistant starch content increased by both investigated modifications, and degree of modification increased proportionally to amount of reagents used. Total colour difference caused by modifications was detectable by trained people. Adhesiveness significantly increased, while freeze-thaw stability decreased by both investigated modifications. Starch modification is important for the continued and increased use of starch as thickening, gelling, binding, adhesive and film forming agent. By different processes of modification acid hydrolisys, estherification, etherification, oxidation, cross-linking, physical modification… physico-chemical characteristics of native starch are altered to improve functional characteristics Kaur et al.
Modified starch , also called starch derivatives , are prepared by physically , enzymatically , or chemically treating native starch to change its properties. They are also used in many other applications. Starches are modified to enhance their performance in different applications. Starches may be modified to increase their stability against excessive heat, acid, shear, time, cooling, or freezing; to change their texture ; to decrease or increase their viscosity ; to lengthen or shorten gelatinization time; or to increase their visco-stability. Acid-treated starch INS ,  also called thin boiling starch, is prepared by treating starch or starch granules with inorganic acids , e. Other treatments producing modified starch with different INS and E-numbers are:. 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.
STARCH PROPERTIES, MODIFICATIONS,. AND APPLICATIONS. J. JANE. Center for Crops Utilization Research and Department of. Iowa State University.
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Please choose whether or not you want other users to be able to see on your profile that this library is a favorite of yours. - Starch is an important food product and a versatile biomaterial used world-wide for different purposes in many industrial sectors including foods, health, textile, chemical and engineering sector.