Rebenok Y. Development of potato starch electrochemical modification

3. Experimental researches for the electrochemical modification of potato starch and optimization of oxidation process. On the results of researches were carry out commercial test and obtain experimental batch of oxidized starches. Slightly oxidized starch obtained by electrochemical method form strength gels and can use for jelly confectionary production. Also electrochemical method suitable for obtain highly oxidized starches. The qualitative characteristics (odor, ash content) of the electrochemically oxidized starch are better than hypochlorite and peroxide oxidized starch. Oxidized starches were studied with respect to the degree of substitution (DS) and oxidized group distribution by microscopy of dyed starch grains, chemical determination of carboxyl and carbonyl groups, IR spectroscopy, 1H NMR spectroscopy, X-ray crystal analysis. Moreover, were studied weight-average molecular weight and number-average molecular weight. Keywords: potato starch, modified starch, oxidized starch, starch oxidation, electrochemical modification.