Dialdehyde starch
Dialdehyde starch is a polysaccharide derived by chemical modification from starch. It is prepared by periodate oxidation of starch. As an aqueous dispersion, it can form a particle gel or a polymer network depending on preparation conditions. Hydrolysis with sulfurous acid yields glyoxal and erythrose.
It has found use in the paper industry, where in it has been shown to improve the wet strength of consumer products like toilet paper and paper towels.