Carboxy Methyl starch (CMS) is an important modified starch with unique properties due to the presence of negatively charged functional group (CH2COO-). carboxymethyl groups interrupts the ordered structure of native starch and intervenes with the re-association of gelatinized starch. This modification yields starch with decreased gelatinization temperature, increased solubility and improved storage stability.
CMS has a wide range of applications in industries, mostly used for purposes of thickening, stabilization, water preserving, etc. In pharmaceutical industry. CMS is commonly used as disintegrant. It is also used in textile industry as thickening agent in textile printing paste and as sizing agent especially for hydrophilic yarn.
Oil field: Used for fluid-loss control in drilling mud, drill-in, completion and work over fluids.
Textile industry: Is ready to replace traditional alginate with about half of the cost.
Construction: Can be used for water preserving in concrete paste and color paste, as adhesive in concrete, sand, and in adhesive layer for wall paper installation.
Pharmaceutical: May replace carboxymethyl cellulose (CMC) as disintegrant in solid oral dosage manufacturing.
Food: Used in such food varieties as jelly, juice, ice cream, canned food, yogurt, butter, bread, noodle for fresh perseverance, etc.
Other industries: May be used in consumer products, such as laundry, toothpaste; paper Industry, environmental protection, and tobacco.